US20100064602A1 - Self-registering roof ventilation system - Google Patents
Self-registering roof ventilation system Download PDFInfo
- Publication number
- US20100064602A1 US20100064602A1 US12/283,569 US28356908A US2010064602A1 US 20100064602 A1 US20100064602 A1 US 20100064602A1 US 28356908 A US28356908 A US 28356908A US 2010064602 A1 US2010064602 A1 US 2010064602A1
- Authority
- US
- United States
- Prior art keywords
- roof
- panel
- recited
- ventilation system
- registration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 49
- 238000009432 framing Methods 0.000 claims abstract description 64
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 abstract description 15
- 230000005465 channeling Effects 0.000 abstract 1
- 230000037361 pathway Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000011493 spray foam Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
- E04D13/1625—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/17—Ventilation of roof coverings not otherwise provided for
- E04D13/178—Ventilation of roof coverings not otherwise provided for on the eaves of the roof
Definitions
- This invention relates generally to a roof ventilation system.
- the present invention is directed to a roof ventilation system that incorporates an eave component and optional continuation components, each component comprising a panel including at least one registration tab for self-registering to an adjacent panel.
- Residential and commercial buildings with sloped roofs typically include an open, unheated attic.
- the proper use of insulation and ventilation within the attic space can provide both energy conservation and help reduce common adverse conditions associated with moisture build up and extreme temperature variations. For example, during the summer extreme heat in the attic can degrade the roofing materials and increase cooling costs for the space below the attic.
- Insulation is normally placed in the ceiling/attic floor assembly to insulate the occupied levels of the building from the heat that builds up in the attic.
- a ventilation system is usually incorporated to reduce heat build-up and remove moisture from the attic. The ventilation system requires a combination of soffit vents that bring air into the attic and a ridge vent that allows air to vent out of the attic.
- the air is moved along the underside of the roof sheathing by thermal convection.
- the soffit vents are located below the eaves of the roof, it is important to provide an air pathway between the soffit vent and the underside of the roof sheathing to allow for this air movement.
- This air pathway will allow cool air to enter through the soffit vent, run along the underside of the roof and exit through a ridge vent to cool the roof and allow moisture to escape.
- inadequate insulation and ventilation at the eaves often results in repeated freezing and thawing of snow which produces ice dams at the roof eaves. These dams can cause water to creep up under the shingles and leak into the building.
- Lack of ventilation will also cause moisture to condense on the underside of the roof and within the insulation. This moisture will degrade both the roof sheathing and reduce the effectiveness of the insulation. Prolonged moisture can also result in mold growth in the attic space. This condition can again be mitigated by providing a continuous and clear air pathway from the soffit vent along the underside of the roof to a ridge vent. Cool air entering from the soffit vent will flow through this pathway to cool the underside of the roof reducing snow melt higher up the roof that would then flow down the roof and freeze near the eaves creating an ice dam. The thermal convection of air will also remove airborne moisture that would otherwise condense on the underside of the roof or in the insulation.
- roof ventilation system It is therefore common in the building industry, and required by most building codes, to install some form of roof ventilation system that will provide a vent channel (air pathway) on the underside of the roof running from the eave space to an upper portion of the roof. It is also common to install some type of baffle that fits between roof framing members at the exterior wall plane to prevent insulation materials from getting into the eave space and thereby blocking the soffit vents. Most prior art roof ventilation baffles are designed to be installed after the roof has been completely sheathed with plywood or some other substrate. The process of installing and fitting “vent chutes” and baffles into the narrow, sloped areas where the eave portion of the roof intersects the exterior wall structure of the building can be tedious and time consuming.
- One aspect of the present invention is directed to a roof ventilation system comprising a panel that includes flanged lateral edges. At least one flanged lateral edge has a registration tab for registering with an adjacent panel. When the flanged lateral edges are secured between the top of roof framing members and the roof sheathing, a vent channel is created between the roof and the panel.
- Another aspect is directed to a method of forming a roof vent channel comprising the steps of providing a framed roof with exposed roof framing members and a panel including flanged lateral edges. At least one of the flanged lateral edges has a registration tab for registering with an adjacent panel. The method then includes registering the panel to the adjacent panel on the roof framing members and securing the panel to the roof framing members. Roof sheathing is installed over the roof framing members and the panel to create the roof vent channel.
- FIG. 1 a is a cut away, perspective view of a roof ventilation system in accordance with the present invention showing eave components secured adjacent to each other on roof framing members with registration tabs aligned to registration gaps and a hinged baffle flap oriented to stop insulation from getting into the eave space;
- FIG. 1 b is a sectional, partial cut away, side view of the roof ventilation system in FIG. 1 a , showing the baffle flap, the formation of the vent channel and how air flows from the soffit vent through the vent channel and out the ridge vent;
- FIG. 2 is a perspective view of the two eave components comprising panels laying adjacent to each other and secured to the roof framing members;
- FIG. 3 is a sectional view perpendicular to two roof framing members just interior the attic from the eave space showing the formation of the vent channel and its location relative to insulation;
- FIG. 4 a is a perspective view of a first registration structure in accordance with the present invention.
- FIG. 4 b is a perspective view of a second registration structure in accordance with the present invention.
- FIG. 4 c is a perspective view of a third registration structure in accordance with the present invention.
- FIG. 4 d is a perspective view of a fourth registration structure in accordance with the present invention.
- FIG. 5 is a perspective view showing key features of an eave component and how multiple eave components may be compactly stacked for shipping;
- FIG. 6 a is a perspective view showing how the incorporation of a living hinge as part of the eave component, and how this living hinge allows the user to adjust the baffle flap for any slope roof;
- FIG. 6 b is a perspective view showing the structure of a living hinge
- FIG. 6 c is a perspective view of the living hinge of FIG. 6 b with the baffle flap now angled to fit the slope of a roof;
- FIG. 7 is a perspective view showing key features of a continuation component
- FIG. 8 is a perspective view of a continuation component with perforations that allow for additional ventilation of insulation
- FIG. 9 a is a perspective view showing the use of eave components and continuation components when the building has a cathedral ceiling
- FIG. 9 b is a perspective view showing the use of eave components and continuation components when the building has a finished attic;
- FIG. 10 is a perspective view showing how a continuation component may be installed in a framing bay in conjunction with an eave component to extend the length of a vent channel;
- FIG. 11 is a perspective view showing how a user can hold the eave components and continuation components during installation of the self-registering roof ventilation system.
- FIGS. 1-11 illustrate the elements of roof ventilation system 20 according to the present invention.
- Roof ventilation system 20 FIGS. 1 a and 1 b , is designed to be installed in new or renovated buildings on top of exposed roof framing members 22 prior to the installation of roof sheathing 24 .
- Roof ventilation system 20 comprises one or more eave components 21 and optional continuation components 23 depending on the application.
- Eave component 21 FIG. 5 , comprises a panel 26 including flanged lateral edges 28 a (a.k.a. first flanged lateral edge) and 28 b (a.k.a. second flanged lateral edge).
- Panel 26 also includes a first end 30 and a second end 32 .
- Panels 26 are preferably rectangular.
- Panels 26 are nominally 16-inches or 24-inches wide to fit over roof framing members 22 .
- Roof framing members 22 are usually spaced at 16-inches and 24-inches on center.
- panels 26 may range from 40-inches to 60-inches in length.
- the panels may range in thickness from 0.020-inches to 0.080-inches.
- Flanged lateral edges 28 a and 28 b protrude upward and outward from a substantially flat middle section 34 of panel 26 to provide a means to secure panel 26 to roof framing members 22 .
- the space between the top side of the middle section 34 and bottom side of roof sheathing 24 will create a continuous vent channel 36 preferably 1.5-inches to 2-inches in depth, FIG. 3 .
- middle section 34 of panel 26 may take on any shape that creates an appropriate vent channel 36 . This may include, but is not limited to cross-sections that are arcuate, channeled and ridged.
- the canted section 38 of each flange allows for easy positioning and provides for compression/tension adjustment of panel 26 between pairs of roof framing members 22 .
- Canted sections 38 also define the side walls of vent channel 36 .
- Canted sections 38 are sized to generally provide 1.5-inches to 2-inches of unobstructed space between the underside of roof sheathing 24 and the top side of middle section 34 . This sizing allows for clear air flow and avoids the ends of roofing nails 40 used during roofing to damage panel 26 .
- Vent channel 36 runs the full width of framing bay 41 bounded by roof framing members 22 . This provides ventilation to 100% of the exposed underside of roof sheathing 24 versus only a portion of the sheathing as most other prior art does.
- the generally flat portion of flanged lateral edges 28 a and 28 b that extends outward from canted sections 38 and runs along the length of panel 26 is defined as edge section 42 .
- Canted section 38 may be at one angle or continuously change angle from middle section 34 to edge section 42 .
- the bottom side of edge section 42 is designed for resting on top of roof framing members 22 when installed.
- Edge section 42 may incorporate or be divided into one or more registration tabs 44 or registration gaps 46 .
- Edge section 42 may also extend to rest completely over the top of a roof framing member 22 and extend to go down the other side of the roof framing member in sort of a hooked fashion, FIG. 4 d .
- Edge section 42 is the preferred section of panel 26 through which to secure the panels to roof framing members 22 .
- Panels 26 may be secured by nails, screws, staples or other fastening means 43 .
- Other portions of panel 26 such as canted sections 38 , may be used to secure the panel to roof framing members 22 without deviating from the scope of the invention.
- Each flanged lateral edge 28 a and 28 b of eave component 21 has at least one registration tab 44 for alignment to an adjacent panel.
- FIGS. 4 a - d show several different registration structures for registration tab 44 .
- each registration tab 44 When installed each registration tab 44 preferably aligns within a registration gap 46 of an adjacent panel. It is preferable to have a plurality of registration tabs 44 and registration gaps 46 on each flanged lateral edge 28 a and 28 b of panel 26 . It is also preferable to have a series of alternating registration tabs 44 and registration gaps 46 on each flanged lateral edge 28 a and 28 b that are approximately equal to the width of edge section 42 .
- first flanged lateral edge 28 a will have a registration tab 44 and the second flanged lateral edge 28 b will have a corresponding registration gap 46 . Further along the length of panel 26 the first flanged lateral edge 28 a will then have a registration gap 46 and the second flanged lateral edge 28 b will then have a registration tap 44 .
- This structure allows panels 26 to be laid side-by-side adjacent to each other and have the panels self-register with registration tab 44 in registration gap 46 .
- registration tabs 44 and registration gaps 46 are of relatively equal length with the gaps equal to or larger than the tabs so that the tabs fit within the gaps to help aid with registration of adjacent panels and provide tight alignment tolerances.
- registration tab 44 and registration gap 46 alignment tolerances should be 0.25-inches or less.
- registration tabs 44 are preferably 57 ⁇ 8 inches long and have an edge section 42 width of 11 ⁇ 2 inches.
- Registration gaps 46 are preferably 61 ⁇ 8 inches long and have an edge section 42 width of 11 ⁇ 2 inches.
- Eave component 21 further includes a baffle flap 48 on first end 30 of panel 26 .
- Baffle flap 48 is preferably 131 ⁇ 2 inches long, but the baffle flap may take any length appropriate for the exact application.
- Baffle flap 48 is integrated with panel 26 by way of a living hinge 50 .
- Panel 26 and baffle flap 48 are preferably fabricated as one integral unit during manufacture.
- Baffle flap 48 is adjusted down during installation to create a barrier between attic space 52 and eave space 54 .
- the purpose of baffle flap 48 is to keep insulation 56 , which may be laid or blown between ceiling framing members 58 , from getting into eave space 54 .
- Baffle flap 48 has two baffle flap tabs 60 a and 60 b that are formed from the canted sections 38 .
- Baffle flap tabs 60 a and 60 b are secured by fastening means 43 such as nails, screws and staples to the sides of roof framing members 22 as shown in FIG. 2 .
- Baffle flap 48 can adjust for any slope roof by way of living hinge 50 , FIG. 6 a .
- Living hinge 50 is formed as a thinned region at the first end of panel 26 . This thinned region is created during the manufacture of panels 26 by a press with a blunt heated blade, contact with a hot wire, partial milling or other means similar thinning means.
- a close-up view of the structure of living hinge 50 is shown in FIG. 6 b and 6 c .
- Living hinge 50 extends continuously across the length of middle section 34 of panel 26 at first end 30 . Where middle section 34 meets canted section 38 , living hinge 50 terminates as a gap in the canted sections of both flanged lateral edges 28 a and 28 b .
- Living hinge 50 is not a perforated fold line or line that needs to be scored as is the case in the prior art. Fold lines are subject to creasing and generate poorly formed folds. Score lines are subject to the user improperly scoring the baffle and having the baffle not fold uniformly where needed.
- Eave component 21 may further include one or more openings 60 near second edge 32 .
- Openings 60 may be a gap, a slot or other appropriately shaped opening.
- Opening 60 may be positioned adjacent to or just interior second end 32 .
- the primary function of opening 60 is to accept an interlocking tab 62 from continuation component 23 , FIG. 10 .
- Opening 60 also functions to help with self-registering continuation component 23 to eave component 21 .
- opening 60 may function as a convenient way to carry or hold eave component 21 during installation, FIG. 11 .
- Continuation component 23 is for extending the length of vent channel 36 in certain applications.
- Continuation component 23 shown in FIGS. 7 and 8 , comprises a panel 26 including flanged lateral edges 28 a (a.k.a. first flanged lateral edge) and 28 b (a.k.a. second flanged lateral edge).
- Panel 26 also includes a first end 30 and a second end 32 .
- Panels 26 are preferably rectangular. Panels 26 are nominally 16-inches or 24-inches wide to fit over roof framing members 22 . Roof framing members 22 are usually spaced at 16-inches and 24-inches on center. Depending on the application, panels 26 may range from 40-inches to 60-inches in length.
- the panels may range in thickness from 0.020-inches to 0.080-inches.
- Flanged lateral edges 28 a and 28 b protrude upward and outward from a substantially flat middle section 34 of panel 26 to provide a means to secure panel 26 to roof framing members 22 .
- the space between the top side of the middle section 34 and bottom side of roof sheathing 24 will create a continuous vent channel 36 preferably 1.5-inches to 2-inches in depth, FIG. 3 .
- middle section 34 of panel 26 may take on any shape that creates an appropriate vent channel 36 . This may include, but is not limited to cross-sections that are arcuate, channeled and ridged.
- each flange allows for easy positioning and provides for compression/tension adjustment of panel 26 between pairs of roof framing members 22 .
- Canted sections 38 also define the side walls of vent channel 36 .
- Canted sections 38 are sized to generally provide 1.5-inches to 2-inches of unobstructed space between the underside of roof sheathing 24 and the top side of middle section 34 . This sizing allows for clear air flow and avoids the ends of roofing nails 40 used during roofing to damage panel 26 .
- Vent channel 36 runs the full width of framing bay 41 bounded by roof framing members 22 . This provides ventilation to 100% of the exposed underside of roof sheathing 24 versus only a portion of the sheathing as most other prior art does.
- edge section 42 The generally flat portion of flanged lateral edges 28 a and 28 b that extends outward from canted sections 38 and runs along the length of panel 26 is defined as edge section 42 .
- Canted section 38 may be at one angle or continuously change angle from middle section 34 to edge section 42 .
- the bottom side of edge section 42 is designed for resting on top of roof framing members 22 when installed.
- Edge section 42 may incorporate or be divided into one or more registration tabs 44 or registration gaps 46 .
- Edge section 42 may also extend to rest completely over the top of a roof framing member 22 and extend to go down the other side of the roof framing member in sort of a hooked fashion, FIG. 4 d .
- Edge section 42 is the preferred section of panel 26 through which to secure the panels to roof framing members 22 .
- Panels 26 may be secured by nails, screws, staples or other fastening means 43 .
- Other portions of panel 26 such as canted sections 38 , may be used to secure the panel to roof framing
- Each flanged lateral edge 28 a and 28 b of continuation component 23 has at least one registration tab 44 for alignment to an adjacent panel.
- FIGS. 4 a - d show several different registration structures for registration tab 44 .
- each registration tab 44 When installed each registration tab 44 preferably aligns within a registration gap 46 of an adjacent panel. It is preferable to have a plurality of registration tabs 44 and registration gaps 46 on each flanged lateral edge 28 a and 28 b of panel 26 . It is also preferable to have a series of alternating registration tabs 44 and registration gaps 46 on each flanged lateral edge 28 a and 28 b that are approximately equal to the width of edge section 42 .
- first flanged lateral edge 28 a will have a registration tab 44 and the second flanged lateral edge 28 b will have a corresponding registration gap 46 . Further along the length of panel 26 the first flanged lateral edge 28 a will then have a registration gap 46 and the second flanged lateral edge 28 b will then have a registration tap 44 .
- This structure allows panels 26 to be laid side-by-side adjacent to each other and have the panels self-register with registration tab 44 in registration gap 46 .
- registration tabs 44 and registration gaps 46 are of relatively equal length with the gaps equal to or larger than the tabs so that the tabs fit within the gaps to help aid with registration of adjacent panels and provide tight alignment tolerances.
- registration tab 44 and registration gap 46 alignment tolerances should be 0.25-inches or less.
- registration tabs 44 are preferably 57 ⁇ 8 inches long and have an edge section 42 width of 11 ⁇ 2 inches.
- Registration gaps 46 are preferably 61 ⁇ 8 inches long and have an edge section 42 width of 11 ⁇ 2 inches.
- Continuation component 23 may further comprise at least one interlocking tab 62 at first end 30 for interlocking with a second continuation component 23 or an eave component 21 .
- Continuation component 23 may further include one or more openings 60 .
- Openings 60 may be a gap, a slot or other appropriately shaped opening.
- Opening 60 may be placed adjacent to or just interior second end 32 of panel 26 .
- the primary function of opening 60 is to accept an interlocking tab 62 from a second continuation component 23 .
- Opening 60 also functions to help with self-registering a first continuation component 23 to a second continuation component 23 .
- opening 60 may function as a way to conveniently carry or hold continuation components 23 during installation.
- Eave component 21 and continuation component 23 may include perforations 64 as shown in FIG. 8 .
- Perforations 64 provide a way for moisture to escape from insulation 56 , enter vent channel 36 and be carried away by the flowing air.
- Spray foam insulation requires no perforations 64 ; while fiberglass, cellulose and open cell spray foam require the perforations.
- Perforations 64 may range in diameter from 1/16-inch to 1 ⁇ 2-inch and the perforations are spaced from 1-inch to 3-inches apart depending on the application.
- Eave components 21 and continuation components 23 can both be fabricated using several methods. These methods include, but are not limited to stamping, extrusion, thermal molding and injection molding.
- the preferred fabrication material is a plastic such as PVC, ABS, HDPE, LDPE, polystyrene or other plastic compound.
- non-plastics such as corrugated cardboard, thin metal sheets and other composite materials may be used. Cost, weight, strength, structural rigidity over the expected environmental temperature range and fabrication costs all determine which material is appropriate for a given application. Since each type of component (eave component 21 or continuation component 23 ) is substantially flat and each type has the same shape, components of the same type can be easily stacked and packaged in groups of 10-24 units at a time as shown in FIG. 5 . These packages can then be easily shipped to the work site.
- Eave components 21 and continuation components 23 of roof ventilation system 20 are designed to be installed on top of exposed roof framing members 22 just prior to applying roof sheathing 24 .
- This installation can occur in new building construction or when a roof structure is being renovated.
- the overall roof structure at installation is similar to that shown in FIG. 1 a . Installation occurs without roof sheathing 24 and without shingles 66 in place.
- the roof structure comprises roof framing members 22 typically spaced at 16-inches or 24-inches on center.
- Ceiling framing members 58 are secured to roof framing members 22 and wall top plate 68 .
- Ceiling 70 is secured to the bottom of ceiling framing members 58 .
- the slope of roof framing members 22 may be any slope as defined by the building design.
- roof framing members 22 overhang the edge of the building they create eave 72 .
- Eave 72 , facia 74 , soffit 76 and exterior wall 78 of the building create eave space 54 .
- Soffit vents 80 are provided continuously or at intervals along soffit 76 as fresh air 77 intakes.
- a first panel 26 a in this case an eave component
- living hinge 50 is aligned with the face of exterior wall 78 .
- Baffle flap 48 overlaps top plate 68 of the exterior wall 78 of the building.
- Top plate 68 and exterior wall 78 may or may not be covered with plywood 79 .
- Registration tabs 44 are then fastened to the top of roof framing members 22 as required to hold in place, using fasteners 43 , for example staples.
- Baffle flap tabs 60 a and 60 b are then secured to roof framing members 22 by appropriate fasteners 43 , again for example staples.
- a second panel 26 b is then laid adjacent to first panel 26 a between the next two adjacent roof framing members 22 .
- Registration tabs 44 of second panel 26 b are then placed within and registered to registration gaps 46 of first panel 26 a .
- First panel 26 a and second panel 26 b are now self-registered. The result of registering first panel 26 a to second panel 26 b causes the two panels to be aligned to each other.
- Baffle flap 48 of second panel 26 b is then adjusted and secured to roof framing members 22 . This process continues with successive panels until the entire eave side of the roof structure is fitted with eave components. Once the eave components are in place, roof sheathing 24 and shingles 66 are installed over roof framing members 22 and panels 26 , FIGS. 1 a and 3 . This process completes the formation of vent channels 36 . Insulation 56 can then be blown or laid around the edges of attic space 52 without worry of the insulation getting into eave space 54 and clogging soffit vents 80 . Once roof ventilation system 20 is complete, fresh air 77 enters through soffit vents 80 , flows through channel vent 36 and exits through ridge vent 82 , FIG. 1 b.
- FIG. 10 shows for a single framing bay 41 how continuation component 23 may be added to eave component 21 . Because each component comprises a panel 26 , this structure includes a first panel added adjacent to a second panel along the length of roof framing members 22 . Interlocking tabs 62 of continuation component 23 fit within openings 60 of eave component 21 . Interlocking tabs 62 help register the two components in place. Additional continuation components 23 can be added in a similar manner to the structure to continue the extension of vent channel 36 as required.
- openings 60 at the second end 32 of panels 26 provide for a complete installation system 88 for installing roof ventilation system 20 .
- Openings 60 can be used as a method of holding panels 26 by a panel hanger 90 while they are being installed by the worker 92 .
- the invention provides a simple and inexpensive way to create a roof ventilation system with air pathways along the bottom side of a roof
- the ventilation system is easy to install by including self-registering tabs and gaps.
- the ventilation system can be used in numerous roof ventilation applications by incorporating multiple components comprising panels that register and interlock together.
- the invention is not limited to the embodiments represented and described above but includes all variants notably those concerning the materials used to form the eave and continuation components, the exact shape and spacing of registration tabs and gaps, and the cross-sectional shape used to form the vent channel. None in the above specification is intended to limit the invention more narrowly than the appended claims. The examples given are intended only to be illustrative rather than exclusive.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
A self-registering roof ventilation system comprised of a panel including flanged lateral edges. At least one flanged lateral edge has a registration tab for registering with an adjacent panel. The panel is installed on top of roof framing members prior to the addition of roof sheathing so that the flanged lateral edges can be secured between the roof framing members and the roof sheathing. The panel in combination with the roof sheathing creates a vent channel for channeling air from soffit vents along the underside of the roof sheathing and out of the attic through a ridge vent. The panel may further comprises a baffle flap with a living hinge that is adjustable to any pitched roof. The baffle flap forms a barrier to stop insulation from the attic from getting into the eave space and obstructing the soffit vents. Additional panels can be added to extend the length of the vent channel.
Description
- This invention relates generally to a roof ventilation system. In particular, the present invention is directed to a roof ventilation system that incorporates an eave component and optional continuation components, each component comprising a panel including at least one registration tab for self-registering to an adjacent panel.
- Residential and commercial buildings with sloped roofs typically include an open, unheated attic. The proper use of insulation and ventilation within the attic space can provide both energy conservation and help reduce common adverse conditions associated with moisture build up and extreme temperature variations. For example, during the summer extreme heat in the attic can degrade the roofing materials and increase cooling costs for the space below the attic. Insulation is normally placed in the ceiling/attic floor assembly to insulate the occupied levels of the building from the heat that builds up in the attic. A ventilation system is usually incorporated to reduce heat build-up and remove moisture from the attic. The ventilation system requires a combination of soffit vents that bring air into the attic and a ridge vent that allows air to vent out of the attic. In general, the air is moved along the underside of the roof sheathing by thermal convection. Where the soffit vents are located below the eaves of the roof, it is important to provide an air pathway between the soffit vent and the underside of the roof sheathing to allow for this air movement. This air pathway will allow cool air to enter through the soffit vent, run along the underside of the roof and exit through a ridge vent to cool the roof and allow moisture to escape. In cold climates, inadequate insulation and ventilation at the eaves often results in repeated freezing and thawing of snow which produces ice dams at the roof eaves. These dams can cause water to creep up under the shingles and leak into the building. Lack of ventilation will also cause moisture to condense on the underside of the roof and within the insulation. This moisture will degrade both the roof sheathing and reduce the effectiveness of the insulation. Prolonged moisture can also result in mold growth in the attic space. This condition can again be mitigated by providing a continuous and clear air pathway from the soffit vent along the underside of the roof to a ridge vent. Cool air entering from the soffit vent will flow through this pathway to cool the underside of the roof reducing snow melt higher up the roof that would then flow down the roof and freeze near the eaves creating an ice dam. The thermal convection of air will also remove airborne moisture that would otherwise condense on the underside of the roof or in the insulation.
- It is therefore common in the building industry, and required by most building codes, to install some form of roof ventilation system that will provide a vent channel (air pathway) on the underside of the roof running from the eave space to an upper portion of the roof. It is also common to install some type of baffle that fits between roof framing members at the exterior wall plane to prevent insulation materials from getting into the eave space and thereby blocking the soffit vents. Most prior art roof ventilation baffles are designed to be installed after the roof has been completely sheathed with plywood or some other substrate. The process of installing and fitting “vent chutes” and baffles into the narrow, sloped areas where the eave portion of the roof intersects the exterior wall structure of the building can be tedious and time consuming. This process can lead to both ineffective vent formation and increased labor costs when constructing a building. It is apparent to those skilled in the art that opportunity exists for providing new and improved ventilation structures that can create an air passage between the soffit vents and the attic ridge vent. Such a structure should be one that is pre-formed, easy to align, does not have to be cut, and can adjust to any angle roof.
- One aspect of the present invention is directed to a roof ventilation system comprising a panel that includes flanged lateral edges. At least one flanged lateral edge has a registration tab for registering with an adjacent panel. When the flanged lateral edges are secured between the top of roof framing members and the roof sheathing, a vent channel is created between the roof and the panel.
- Another aspect is directed to a method of forming a roof vent channel comprising the steps of providing a framed roof with exposed roof framing members and a panel including flanged lateral edges. At least one of the flanged lateral edges has a registration tab for registering with an adjacent panel. The method then includes registering the panel to the adjacent panel on the roof framing members and securing the panel to the roof framing members. Roof sheathing is installed over the roof framing members and the panel to create the roof vent channel.
- The foregoing and other aspects and advantages of the invention will be apparent from the following detailed description of the invention, as illustrated in the accompanying drawings, in which:
-
FIG. 1 a is a cut away, perspective view of a roof ventilation system in accordance with the present invention showing eave components secured adjacent to each other on roof framing members with registration tabs aligned to registration gaps and a hinged baffle flap oriented to stop insulation from getting into the eave space; -
FIG. 1 b is a sectional, partial cut away, side view of the roof ventilation system inFIG. 1 a, showing the baffle flap, the formation of the vent channel and how air flows from the soffit vent through the vent channel and out the ridge vent; -
FIG. 2 is a perspective view of the two eave components comprising panels laying adjacent to each other and secured to the roof framing members; -
FIG. 3 is a sectional view perpendicular to two roof framing members just interior the attic from the eave space showing the formation of the vent channel and its location relative to insulation; -
FIG. 4 a is a perspective view of a first registration structure in accordance with the present invention; -
FIG. 4 b is a perspective view of a second registration structure in accordance with the present invention; -
FIG. 4 c is a perspective view of a third registration structure in accordance with the present invention; -
FIG. 4 d is a perspective view of a fourth registration structure in accordance with the present invention; -
FIG. 5 is a perspective view showing key features of an eave component and how multiple eave components may be compactly stacked for shipping; -
FIG. 6 a is a perspective view showing how the incorporation of a living hinge as part of the eave component, and how this living hinge allows the user to adjust the baffle flap for any slope roof; -
FIG. 6 b is a perspective view showing the structure of a living hinge; -
FIG. 6 c is a perspective view of the living hinge ofFIG. 6 b with the baffle flap now angled to fit the slope of a roof; -
FIG. 7 is a perspective view showing key features of a continuation component; -
FIG. 8 is a perspective view of a continuation component with perforations that allow for additional ventilation of insulation; -
FIG. 9 a is a perspective view showing the use of eave components and continuation components when the building has a cathedral ceiling; -
FIG. 9 b is a perspective view showing the use of eave components and continuation components when the building has a finished attic; -
FIG. 10 is a perspective view showing how a continuation component may be installed in a framing bay in conjunction with an eave component to extend the length of a vent channel; and -
FIG. 11 is a perspective view showing how a user can hold the eave components and continuation components during installation of the self-registering roof ventilation system. -
FIGS. 1-11 illustrate the elements ofroof ventilation system 20 according to the present invention.Roof ventilation system 20,FIGS. 1 a and 1 b, is designed to be installed in new or renovated buildings on top of exposedroof framing members 22 prior to the installation ofroof sheathing 24.Roof ventilation system 20 comprises one or moreeave components 21 andoptional continuation components 23 depending on the application.Eave component 21,FIG. 5 , comprises apanel 26 including flangedlateral edges 28 a (a.k.a. first flanged lateral edge) and 28 b (a.k.a. second flanged lateral edge).Panel 26 also includes afirst end 30 and asecond end 32.Panels 26 are preferably rectangular.Panels 26 are nominally 16-inches or 24-inches wide to fit overroof framing members 22.Roof framing members 22 are usually spaced at 16-inches and 24-inches on center. Depending on the application,panels 26 may range from 40-inches to 60-inches in length. The panels may range in thickness from 0.020-inches to 0.080-inches. Flanged lateral edges 28 a and 28 b protrude upward and outward from a substantially flatmiddle section 34 ofpanel 26 to provide a means to securepanel 26 toroof framing members 22. When in place, the space between the top side of themiddle section 34 and bottom side ofroof sheathing 24 will create acontinuous vent channel 36 preferably 1.5-inches to 2-inches in depth,FIG. 3 . Although preferably flat,middle section 34 ofpanel 26 may take on any shape that creates anappropriate vent channel 36. This may include, but is not limited to cross-sections that are arcuate, channeled and ridged. The cantedsection 38 of each flange allows for easy positioning and provides for compression/tension adjustment ofpanel 26 between pairs ofroof framing members 22.Canted sections 38 also define the side walls ofvent channel 36.Canted sections 38 are sized to generally provide 1.5-inches to 2-inches of unobstructed space between the underside ofroof sheathing 24 and the top side ofmiddle section 34. This sizing allows for clear air flow and avoids the ends ofroofing nails 40 used during roofing to damagepanel 26.Vent channel 36 runs the full width of framingbay 41 bounded byroof framing members 22. This provides ventilation to 100% of the exposed underside ofroof sheathing 24 versus only a portion of the sheathing as most other prior art does. The generally flat portion of flanged lateral edges 28 a and 28 b that extends outward fromcanted sections 38 and runs along the length ofpanel 26 is defined asedge section 42.Canted section 38 may be at one angle or continuously change angle frommiddle section 34 to edgesection 42. The bottom side ofedge section 42 is designed for resting on top ofroof framing members 22 when installed.Edge section 42 may incorporate or be divided into one ormore registration tabs 44 orregistration gaps 46.Edge section 42 may also extend to rest completely over the top of aroof framing member 22 and extend to go down the other side of the roof framing member in sort of a hooked fashion,FIG. 4 d.Edge section 42 is the preferred section ofpanel 26 through which to secure the panels toroof framing members 22.Panels 26 may be secured by nails, screws, staples or other fastening means 43. Other portions ofpanel 26, such as cantedsections 38, may be used to secure the panel toroof framing members 22 without deviating from the scope of the invention. - Each flanged
lateral edge eave component 21 has at least oneregistration tab 44 for alignment to an adjacent panel.FIGS. 4 a-d show several different registration structures forregistration tab 44. When installed eachregistration tab 44 preferably aligns within aregistration gap 46 of an adjacent panel. It is preferable to have a plurality ofregistration tabs 44 andregistration gaps 46 on each flangedlateral edge panel 26. It is also preferable to have a series of alternatingregistration tabs 44 andregistration gaps 46 on each flangedlateral edge edge section 42. For a given location along the length ofpanel 26 running fromfirst end 30 tosecond end 32, the first flangedlateral edge 28 a will have aregistration tab 44 and the second flangedlateral edge 28 b will have acorresponding registration gap 46. Further along the length ofpanel 26 the first flangedlateral edge 28 a will then have aregistration gap 46 and the second flangedlateral edge 28 b will then have aregistration tap 44. This structure allowspanels 26 to be laid side-by-side adjacent to each other and have the panels self-register withregistration tab 44 inregistration gap 46. It is also preferable to haveregistration tabs 44 andregistration gaps 46 of relatively equal length with the gaps equal to or larger than the tabs so that the tabs fit within the gaps to help aid with registration of adjacent panels and provide tight alignment tolerances. Overall,registration tab 44 andregistration gap 46 alignment tolerances should be 0.25-inches or less. For example,registration tabs 44 are preferably 5⅞ inches long and have anedge section 42 width of 1½ inches.Registration gaps 46 are preferably 6⅛ inches long and have anedge section 42 width of 1½ inches. -
Eave component 21 further includes abaffle flap 48 onfirst end 30 ofpanel 26.Baffle flap 48 is preferably 13½ inches long, but the baffle flap may take any length appropriate for the exact application.Baffle flap 48 is integrated withpanel 26 by way of a livinghinge 50.Panel 26 andbaffle flap 48 are preferably fabricated as one integral unit during manufacture.Baffle flap 48 is adjusted down during installation to create a barrier betweenattic space 52 andeave space 54. The purpose ofbaffle flap 48 is to keepinsulation 56, which may be laid or blown betweenceiling framing members 58, from getting intoeave space 54.Baffle flap 48 has twobaffle flap tabs sections 38.Baffle flap tabs roof framing members 22 as shown inFIG. 2 . -
Baffle flap 48 can adjust for any slope roof by way of livinghinge 50,FIG. 6 a. Livinghinge 50 is formed as a thinned region at the first end ofpanel 26. This thinned region is created during the manufacture ofpanels 26 by a press with a blunt heated blade, contact with a hot wire, partial milling or other means similar thinning means. A close-up view of the structure of livinghinge 50 is shown inFIG. 6 b and 6 c. Livinghinge 50 extends continuously across the length ofmiddle section 34 ofpanel 26 atfirst end 30. Wheremiddle section 34 meets cantedsection 38, livinghinge 50 terminates as a gap in the canted sections of both flanged lateral edges 28 a and 28 b. Livinghinge 50 is not a perforated fold line or line that needs to be scored as is the case in the prior art. Fold lines are subject to creasing and generate poorly formed folds. Score lines are subject to the user improperly scoring the baffle and having the baffle not fold uniformly where needed. -
Eave component 21 may further include one ormore openings 60 nearsecond edge 32.Openings 60 may be a gap, a slot or other appropriately shaped opening.Opening 60 may be positioned adjacent to or just interiorsecond end 32. The primary function of opening 60 is to accept an interlockingtab 62 fromcontinuation component 23,FIG. 10 .Opening 60 also functions to help with self-registeringcontinuation component 23 toeave component 21. Furthermore, opening 60 may function as a convenient way to carry or holdeave component 21 during installation,FIG. 11 . -
Continuation component 23 is for extending the length ofvent channel 36 in certain applications.Continuation component 23, shown inFIGS. 7 and 8 , comprises apanel 26 including flanged lateral edges 28 a (a.k.a. first flanged lateral edge) and 28 b (a.k.a. second flanged lateral edge).Panel 26 also includes afirst end 30 and asecond end 32.Panels 26 are preferably rectangular.Panels 26 are nominally 16-inches or 24-inches wide to fit overroof framing members 22.Roof framing members 22 are usually spaced at 16-inches and 24-inches on center. Depending on the application,panels 26 may range from 40-inches to 60-inches in length. The panels may range in thickness from 0.020-inches to 0.080-inches. Flanged lateral edges 28 a and 28 b protrude upward and outward from a substantially flatmiddle section 34 ofpanel 26 to provide a means to securepanel 26 toroof framing members 22. When in place, the space between the top side of themiddle section 34 and bottom side ofroof sheathing 24 will create acontinuous vent channel 36 preferably 1.5-inches to 2-inches in depth,FIG. 3 . Although preferably flat,middle section 34 ofpanel 26 may take on any shape that creates anappropriate vent channel 36. This may include, but is not limited to cross-sections that are arcuate, channeled and ridged. The cantedsection 38 of each flange allows for easy positioning and provides for compression/tension adjustment ofpanel 26 between pairs ofroof framing members 22.Canted sections 38 also define the side walls ofvent channel 36.Canted sections 38 are sized to generally provide 1.5-inches to 2-inches of unobstructed space between the underside ofroof sheathing 24 and the top side ofmiddle section 34. This sizing allows for clear air flow and avoids the ends ofroofing nails 40 used during roofing to damagepanel 26.Vent channel 36 runs the full width of framingbay 41 bounded byroof framing members 22. This provides ventilation to 100% of the exposed underside ofroof sheathing 24 versus only a portion of the sheathing as most other prior art does. The generally flat portion of flanged lateral edges 28 a and 28 b that extends outward fromcanted sections 38 and runs along the length ofpanel 26 is defined asedge section 42.Canted section 38 may be at one angle or continuously change angle frommiddle section 34 to edgesection 42. The bottom side ofedge section 42 is designed for resting on top ofroof framing members 22 when installed.Edge section 42 may incorporate or be divided into one ormore registration tabs 44 orregistration gaps 46.Edge section 42 may also extend to rest completely over the top of aroof framing member 22 and extend to go down the other side of the roof framing member in sort of a hooked fashion,FIG. 4 d.Edge section 42 is the preferred section ofpanel 26 through which to secure the panels toroof framing members 22.Panels 26 may be secured by nails, screws, staples or other fastening means 43. Other portions ofpanel 26, such as cantedsections 38, may be used to secure the panel toroof framing members 22 without deviating from the scope of the invention. - Each flanged
lateral edge continuation component 23 has at least oneregistration tab 44 for alignment to an adjacent panel.FIGS. 4 a-d show several different registration structures forregistration tab 44. When installed eachregistration tab 44 preferably aligns within aregistration gap 46 of an adjacent panel. It is preferable to have a plurality ofregistration tabs 44 andregistration gaps 46 on each flangedlateral edge panel 26. It is also preferable to have a series of alternatingregistration tabs 44 andregistration gaps 46 on each flangedlateral edge edge section 42. For a given location along the length ofpanel 26 running fromfirst end 30 tosecond end 32, the first flangedlateral edge 28 a will have aregistration tab 44 and the second flangedlateral edge 28 b will have acorresponding registration gap 46. Further along the length ofpanel 26 the first flangedlateral edge 28 a will then have aregistration gap 46 and the second flangedlateral edge 28 b will then have aregistration tap 44. This structure allowspanels 26 to be laid side-by-side adjacent to each other and have the panels self-register withregistration tab 44 inregistration gap 46. It is also preferable to haveregistration tabs 44 andregistration gaps 46 of relatively equal length with the gaps equal to or larger than the tabs so that the tabs fit within the gaps to help aid with registration of adjacent panels and provide tight alignment tolerances. Overall,registration tab 44 andregistration gap 46 alignment tolerances should be 0.25-inches or less. For example,registration tabs 44 are preferably 5⅞ inches long and have anedge section 42 width of 1½ inches.Registration gaps 46 are preferably 6⅛ inches long and have anedge section 42 width of 1½ inches. -
Continuation component 23 may further comprise at least one interlockingtab 62 atfirst end 30 for interlocking with asecond continuation component 23 or aneave component 21.Continuation component 23 may further include one ormore openings 60.Openings 60 may be a gap, a slot or other appropriately shaped opening.Opening 60 may be placed adjacent to or just interiorsecond end 32 ofpanel 26. The primary function of opening 60 is to accept an interlockingtab 62 from asecond continuation component 23.Opening 60 also functions to help with self-registering afirst continuation component 23 to asecond continuation component 23. Furthermore, opening 60 may function as a way to conveniently carry or holdcontinuation components 23 during installation. -
Eave component 21 andcontinuation component 23 may includeperforations 64 as shown inFIG. 8 .Perforations 64 provide a way for moisture to escape frominsulation 56, entervent channel 36 and be carried away by the flowing air. Spray foam insulation requires noperforations 64; while fiberglass, cellulose and open cell spray foam require the perforations.Perforations 64 may range in diameter from 1/16-inch to ½-inch and the perforations are spaced from 1-inch to 3-inches apart depending on the application. -
Eave components 21 andcontinuation components 23 can both be fabricated using several methods. These methods include, but are not limited to stamping, extrusion, thermal molding and injection molding. The preferred fabrication material is a plastic such as PVC, ABS, HDPE, LDPE, polystyrene or other plastic compound. However, non-plastics such as corrugated cardboard, thin metal sheets and other composite materials may be used. Cost, weight, strength, structural rigidity over the expected environmental temperature range and fabrication costs all determine which material is appropriate for a given application. Since each type of component (eave component 21 or continuation component 23) is substantially flat and each type has the same shape, components of the same type can be easily stacked and packaged in groups of 10-24 units at a time as shown inFIG. 5 . These packages can then be easily shipped to the work site. -
Eave components 21 andcontinuation components 23 ofroof ventilation system 20 are designed to be installed on top of exposedroof framing members 22 just prior to applyingroof sheathing 24. This installation can occur in new building construction or when a roof structure is being renovated. The overall roof structure at installation is similar to that shown inFIG. 1 a. Installation occurs withoutroof sheathing 24 and withoutshingles 66 in place. The roof structure comprisesroof framing members 22 typically spaced at 16-inches or 24-inches on center.Ceiling framing members 58 are secured toroof framing members 22 and walltop plate 68.Ceiling 70 is secured to the bottom ofceiling framing members 58. The slope ofroof framing members 22 may be any slope as defined by the building design. Whereroof framing members 22 overhang the edge of the building they createeave 72.Eave 72,facia 74,soffit 76 andexterior wall 78 of the building createeave space 54. Soffit vents 80 are provided continuously or at intervals alongsoffit 76 asfresh air 77 intakes. As shown inFIG. 2 , afirst panel 26 a (in this case an eave component) is laid onroof framing members 22 and livinghinge 50 is aligned with the face ofexterior wall 78.Baffle flap 48 overlapstop plate 68 of theexterior wall 78 of the building.Top plate 68 andexterior wall 78 may or may not be covered withplywood 79.Registration tabs 44 are then fastened to the top ofroof framing members 22 as required to hold in place, usingfasteners 43, for example staples.Baffle flap tabs roof framing members 22 byappropriate fasteners 43, again for example staples. Asecond panel 26 b is then laid adjacent tofirst panel 26 a between the next two adjacentroof framing members 22.Registration tabs 44 ofsecond panel 26 b are then placed within and registered toregistration gaps 46 offirst panel 26 a.First panel 26 a andsecond panel 26 b are now self-registered. The result of registeringfirst panel 26 a tosecond panel 26 b causes the two panels to be aligned to each other.Baffle flap 48 ofsecond panel 26 b is then adjusted and secured toroof framing members 22. This process continues with successive panels until the entire eave side of the roof structure is fitted with eave components. Once the eave components are in place,roof sheathing 24 andshingles 66 are installed overroof framing members 22 andpanels 26,FIGS. 1 a and 3. This process completes the formation ofvent channels 36.Insulation 56 can then be blown or laid around the edges ofattic space 52 without worry of the insulation getting intoeave space 54 and clogging soffit vents 80. Onceroof ventilation system 20 is complete,fresh air 77 enters through soffit vents 80, flows throughchannel vent 36 and exits throughridge vent 82,FIG. 1 b. - In certain applications such as cathedral ceilings 84 (
FIG. 9 a) or finished attics 86 (FIG. 9 b)eave components 21 may require the use ofcontinuation components 23 to extend the length ofvent channel 36.FIG. 10 shows for asingle framing bay 41 howcontinuation component 23 may be added toeave component 21. Because each component comprises apanel 26, this structure includes a first panel added adjacent to a second panel along the length ofroof framing members 22. Interlockingtabs 62 ofcontinuation component 23 fit withinopenings 60 ofeave component 21. Interlockingtabs 62 help register the two components in place.Additional continuation components 23 can be added in a similar manner to the structure to continue the extension ofvent channel 36 as required. - As shown in
FIG. 11 ,openings 60 at thesecond end 32 ofpanels 26 provide for acomplete installation system 88 for installingroof ventilation system 20.Openings 60 can be used as a method of holdingpanels 26 by apanel hanger 90 while they are being installed by theworker 92. - The invention provides a simple and inexpensive way to create a roof ventilation system with air pathways along the bottom side of a roof The ventilation system is easy to install by including self-registering tabs and gaps. Furthermore, the ventilation system can be used in numerous roof ventilation applications by incorporating multiple components comprising panels that register and interlock together.
- The invention is not limited to the embodiments represented and described above but includes all variants notably those concerning the materials used to form the eave and continuation components, the exact shape and spacing of registration tabs and gaps, and the cross-sectional shape used to form the vent channel. Nothing in the above specification is intended to limit the invention more narrowly than the appended claims. The examples given are intended only to be illustrative rather than exclusive.
Claims (28)
1) A roof ventilation system comprising a panel including flanged lateral edges, a first end and a second end; wherein at least one flanged lateral edge has a registration tab for registering with an adjacent panel; and wherein when said flanged lateral edges are secured between the top of roof framing members and the roof sheathing, a vent channel is created between the roof and said panel.
2) A roof ventilation system as recited in claim 1 , wherein said registration tab registers with a registration gap in said adjacent panel.
3) A roof ventilation system as recited in claim 2 , wherein said registration tab fits within said registration gap.
4) A roof ventilation system as recited in claim 1 , wherein said flanged lateral edges include a plurality of said registration tabs.
5) A roof ventilation system as recited in claim 4 , wherein said panel is secured to said roof framing members through said plurality of registration tabs.
6) A roof ventilation system as recited in claim 1 , where said flanged lateral edges include a plurality of registration gaps.
7) A roof ventilation system as recited in claim 1 , further comprising a baffle flap at said first end.
8) A roof ventilation system as recited in claim 7 , wherein said baffle flap is connected to said first end by a living hinge.
9) A roof ventilation system as recited in claim 7 , wherein the orientation of said baffle flap can adjust to be secured to the roof framing members to create a barrier between the attic and eave space for any slope that the roof has.
10) A roof ventilation system as recited in claim 1 , wherein the width of said panel is substantially equal the space between roof framing members plus the thickness of two roof framing members.
11) A roof ventilation system as recited in claim 1 , further comprising an opening having a location that is at least one from the group including interior and adjacent to said second end.
12) A roof ventilation system as recited in claim 11 , wherein said opening is at least one from the group including a slot and a gap.
13) A roof ventilation system as recited in claim 11 , wherein said opening is for interlocking a plurality of said panels to extend the length of said vent channel
14) A roof ventilation system as recited in claim 11 , wherein said opening is for holding said panel during installation.
15) A roof ventilation system as recited in claim 11 , further comprising an interlocking tab at said first end.
16) A roof ventilation system as recited in claim 1 , comprising a first panel and a second panel installed along the length of said roof framing members to extend the length of said vent channel.
17) A roof ventilation system as recited in claim 16 , wherein said first end of said second panel is adjacent to said second end of said first panel.
18) A roof ventilation system as recited in claim 17 , wherein said second panel registers with said first panel.
19) A roof ventilation system as recited in claim 18 , wherein said second panel has an interlocking tab at said first end that interlocks with an opening in said first panel.
20) A roof ventilation system as recited in claim 1 , wherein said panels are stackable.
21) A method of forming a roof vent channel comprising;
a) providing (i) a framed roof with exposed roof framing members and (ii) a panel including flanged lateral edges, wherein at least one of said flanged lateral edges has a registration tab for registering with an adjacent panel;
b) registering said panel to said adjacent panel on the roof framing members;
c) securing said panel to the roof framing members; and
d) installing roof sheathing over the roof framing members and said panel to create said roof vent channel.
22) A method as recited in claim 21 , wherein said providing step further includes providing a registration gap in said adjacent panel.
23) A method as recited in claim 22 , wherein said registering step further includes registering said registration tab to said registration gap in said adjacent panel.
24) A method as recited in claim 21 , wherein said securing step further includes that said panel is secured through said registration tab.
25) A method as recited in claim 21 , wherein said providing step further includes (iii) a baffle flap hinged to a first end of said panel.
26) A method as recited in claim 24 , further comprising adjusting said baffle flap to the roof framing members prior to step d) to create a barrier between the eave space and attic.
27) A method as recited in claim 21 , wherein said providing step further includes providing (iii) said panel including openings and (iv) a continuation component including interlocking tabs.
28) A method as recited in claim 27 , further comprising laying said continuation component along the length of said roof framing members prior to step d) such that said interlocking tabs interlock with said openings to extend the length of said vent channel.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/283,569 US20100064602A1 (en) | 2008-09-12 | 2008-09-12 | Self-registering roof ventilation system |
US12/925,131 US20110030287A1 (en) | 2008-09-12 | 2010-10-14 | Preformed roof ventilation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/283,569 US20100064602A1 (en) | 2008-09-12 | 2008-09-12 | Self-registering roof ventilation system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/925,131 Continuation-In-Part US20110030287A1 (en) | 2008-09-12 | 2010-10-14 | Preformed roof ventilation system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100064602A1 true US20100064602A1 (en) | 2010-03-18 |
Family
ID=42005976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/283,569 Abandoned US20100064602A1 (en) | 2008-09-12 | 2008-09-12 | Self-registering roof ventilation system |
Country Status (1)
Country | Link |
---|---|
US (1) | US20100064602A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070283639A1 (en) * | 2006-06-12 | 2007-12-13 | Matt Kortuem | Cathedral ceiling vent baffle and method of installation |
US20080216419A1 (en) * | 2007-03-06 | 2008-09-11 | Brentwood Industries, Inc. | Insulation Block and Baffle Vent for Manufactured Housing |
US20110088334A1 (en) * | 2009-10-19 | 2011-04-21 | E. I. Du Pont De Nemours And Company | Article and method for controlling moisture |
US20120055110A1 (en) * | 2009-03-28 | 2012-03-08 | Ewald Doerken Ag | Method for Producing a Functional Layer of a Building Shell, and Building Shell and Functional Layer |
US20150240497A1 (en) * | 2014-02-21 | 2015-08-27 | Theodore J. Even | Ice Dam Prevention Shield |
US9243813B2 (en) | 2011-09-22 | 2016-01-26 | Canplas Industries Ltd. | Roof vent |
US9394684B1 (en) * | 2015-03-03 | 2016-07-19 | Fiberlock Technologies, Inc. | Method and apparatus for an improved air barrier system |
US20170067246A1 (en) * | 2015-09-09 | 2017-03-09 | Glen R. HUDSON | Vapour Barrier Pan |
US11148507B2 (en) * | 2019-04-04 | 2021-10-19 | Nissan North America, Inc. | Vehicle passenger compartment vent structure |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096790A (en) * | 1977-06-24 | 1978-06-27 | Curran Laurence E | Ventilation and insulation baffle |
US4292777A (en) * | 1978-10-10 | 1981-10-06 | Story Edward R | Insulation-confining panel and method of using the same |
US20040255540A1 (en) * | 2003-06-23 | 2004-12-23 | Wang Hui Li | Pieced flooring that is made of foam material |
US20060283125A1 (en) * | 2005-06-02 | 2006-12-21 | Moller Jorgen J Jr | Modular floor tile system with sliding lock |
US20070028546A1 (en) * | 2005-03-30 | 2007-02-08 | Denso Corporation | Yoke for rotary electric machine and method of manufacturing yoke |
US20070094979A1 (en) * | 2005-10-07 | 2007-05-03 | Suncast Corporation | Plastic utility shed flooring system |
US7765750B2 (en) * | 2003-09-19 | 2010-08-03 | Certainteed Corporation | Reconfigurable attic air vent |
-
2008
- 2008-09-12 US US12/283,569 patent/US20100064602A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096790A (en) * | 1977-06-24 | 1978-06-27 | Curran Laurence E | Ventilation and insulation baffle |
US4292777A (en) * | 1978-10-10 | 1981-10-06 | Story Edward R | Insulation-confining panel and method of using the same |
US20040255540A1 (en) * | 2003-06-23 | 2004-12-23 | Wang Hui Li | Pieced flooring that is made of foam material |
US7765750B2 (en) * | 2003-09-19 | 2010-08-03 | Certainteed Corporation | Reconfigurable attic air vent |
US20070028546A1 (en) * | 2005-03-30 | 2007-02-08 | Denso Corporation | Yoke for rotary electric machine and method of manufacturing yoke |
US20060283125A1 (en) * | 2005-06-02 | 2006-12-21 | Moller Jorgen J Jr | Modular floor tile system with sliding lock |
US20070094979A1 (en) * | 2005-10-07 | 2007-05-03 | Suncast Corporation | Plastic utility shed flooring system |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7856764B2 (en) * | 2006-06-12 | 2010-12-28 | Brentwood Industries, Inc. | Cathedral ceiling vent baffle |
US20070283639A1 (en) * | 2006-06-12 | 2007-12-13 | Matt Kortuem | Cathedral ceiling vent baffle and method of installation |
US20080216419A1 (en) * | 2007-03-06 | 2008-09-11 | Brentwood Industries, Inc. | Insulation Block and Baffle Vent for Manufactured Housing |
US7841137B2 (en) * | 2007-03-06 | 2010-11-30 | Brentwood Industries, Inc. | Insulation block and baffle vent for manufactured housing |
US8733054B2 (en) | 2009-03-28 | 2014-05-27 | Ewald Doerken Ag | Method for producing a functional layer of a building shell, and building shell and functional layer |
US8763338B2 (en) * | 2009-03-28 | 2014-07-01 | Ewald Dörken Ag | Method for producing a functional layer of a building shell, and building shell and functional layer |
US20120055110A1 (en) * | 2009-03-28 | 2012-03-08 | Ewald Doerken Ag | Method for Producing a Functional Layer of a Building Shell, and Building Shell and Functional Layer |
US20120204507A1 (en) * | 2009-10-19 | 2012-08-16 | E.I. Du Pont De Nemours And Company | Article and method for controlling moisture |
US20110088334A1 (en) * | 2009-10-19 | 2011-04-21 | E. I. Du Pont De Nemours And Company | Article and method for controlling moisture |
US9243813B2 (en) | 2011-09-22 | 2016-01-26 | Canplas Industries Ltd. | Roof vent |
US20150240497A1 (en) * | 2014-02-21 | 2015-08-27 | Theodore J. Even | Ice Dam Prevention Shield |
US9447582B2 (en) * | 2014-02-21 | 2016-09-20 | Theodore J Even | Ice dam prevention shield |
US9394684B1 (en) * | 2015-03-03 | 2016-07-19 | Fiberlock Technologies, Inc. | Method and apparatus for an improved air barrier system |
US20170067246A1 (en) * | 2015-09-09 | 2017-03-09 | Glen R. HUDSON | Vapour Barrier Pan |
US11148507B2 (en) * | 2019-04-04 | 2021-10-19 | Nissan North America, Inc. | Vehicle passenger compartment vent structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110030287A1 (en) | Preformed roof ventilation system | |
US20100064602A1 (en) | Self-registering roof ventilation system | |
US4096790A (en) | Ventilation and insulation baffle | |
US9157239B2 (en) | Roof ridge ventilation system | |
EP1135656B1 (en) | Tile roof vent | |
US6286273B1 (en) | Tile vent | |
US3683785A (en) | Roof construction providing air flow from eave to ridge | |
US5561953A (en) | Contoured ventilation system for metal roofs | |
US6991535B2 (en) | Externally baffled ridge vent and methods of manufacture and use | |
US7610725B2 (en) | Method and system for venting roofs and walls | |
US6754995B1 (en) | Panel for forming on-site a multi-function channel for being self-retaining between, and by, a pair of parallel, adjacent, and spaced-apart framing members without a need for fasteners | |
US7537518B2 (en) | Baffled roll vent | |
US4265060A (en) | Ventilation baffle | |
US8151524B2 (en) | Vented closure for metal roof | |
US20080098674A1 (en) | Roof ventilation system for tiled roof | |
US8281522B1 (en) | Ventilated roofing system | |
US20070151177A1 (en) | Hinged roof vent for attic | |
US5560157A (en) | Fascia vent | |
US20010052207A1 (en) | Roofing ventilation systems and methods | |
US20070151176A1 (en) | Hinged roof vent for attic | |
US11585545B2 (en) | Ridge vent | |
CA2717405A1 (en) | Preformed roof ventilation system | |
US8733064B2 (en) | Ventilation baffle and insulation stop | |
CA2639646A1 (en) | Self-registering roof ventilation system | |
EP3542104B1 (en) | Ridge vent |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MOISTURE MANAGEMENT SYSTEMS, LLC,VERMONT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MOORE, KIRK THOMAS;REEL/FRAME:023756/0180 Effective date: 20091208 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |