CA1234271A - Roofing systems - Google Patents
Roofing systemsInfo
- Publication number
- CA1234271A CA1234271A CA000462003A CA462003A CA1234271A CA 1234271 A CA1234271 A CA 1234271A CA 000462003 A CA000462003 A CA 000462003A CA 462003 A CA462003 A CA 462003A CA 1234271 A CA1234271 A CA 1234271A
- Authority
- CA
- Canada
- Prior art keywords
- rafter
- forming portions
- duct forming
- duct
- side walls
- 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.)
- Expired
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000001771 impaired effect Effects 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 13
- 239000011810 insulating material Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000385654 Gymnothorax tile Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Duct Arrangements (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
Abstract ROOFING SYSTEMS
A roofing system includes ducting members 3 secured to and saddling the rafters 1 at the eaves of the building, such members 3 including duct forming portion 16, either side of a central portion of inverted "U" cross-section, arranged to define air flow passages either side of the rafters 1 thereby to ensure adequate ventilation of the roof space which might otherwise be impaired by insulating materiel pushed into the eaves from inside the roof. The members 3 extend only partially between the rafters l, and are sufficiently self-supporting to maintain the duct forming portions substantially in the desired position thereof.
A roofing system includes ducting members 3 secured to and saddling the rafters 1 at the eaves of the building, such members 3 including duct forming portion 16, either side of a central portion of inverted "U" cross-section, arranged to define air flow passages either side of the rafters 1 thereby to ensure adequate ventilation of the roof space which might otherwise be impaired by insulating materiel pushed into the eaves from inside the roof. The members 3 extend only partially between the rafters l, and are sufficiently self-supporting to maintain the duct forming portions substantially in the desired position thereof.
Description
~3~2:7~
Rooting Systems This invention relates to rooting systems.
It is important in any roofing system that the interior of the roof space is adequately ventilated in order to reduce the effects of condensation which can cause premature deterioration of the rafters and other roof components. To this end it is known to provide ventilating means at the eaves of a roof whereby the flow of air is permitted from outside the roof to the interior roof space.
One such means it described in British Patent Specific cation No. 2131845 wherein a spacer member is interposed between the roof covering and the fish board at the eaves which defines ventilation openings permitting the flow of air into the roof space.
Other such proposals include the provision of ventilating apertures in the fish board itself or in the underlying Swift.
However, while such means allow air to flow into the space defined behind the Swift and fish boards, it is important that sir can flow thereafter into the remainder of the roof space and problems haze been encountered in this regard as a result AYE of the roof insulating material, typically a "quilt"
of fibre-glass or other like material, which is generally pushed firmly into the eaves from inside the roof, inhibiting the flow of air into the roof space. In order to overcome this problem, it is known to provide dueling members which are secured to and extend between the rafter adjacent the eaves. An example of such a dueling member or baffle is described in U.S. Patent No. swish members are effective to space the insulating material from the roof covering so as to define air flow passages there between. However, such dueling I, Jo ".~
~23~27~
members have the disadvantage that they do not adapt to different roof configurations with varying spacings between the rafters, and typically one member will only be suitable for use with a limited number of roofing systems.
According to the invention there is provided a roofing system including rafters with dueling members secured thereto adjacent the eaves each said dueling member being in the form of a tray comprising upwardly open duct-forming portions interconnected by a central portion of inverted "U" cross-section, the central portion saddling a single rafter with a duct forming portion on either side thereof defining flow passages which provide ventilation of the interior roof space, wherein the duct forming portions extend laterally only partially between the rafters and each said member is sufficiently self supporting to-maintain the duct forming portions substantially in the desired configuration thereof.
In accordance with the invention therefore a single dueling member is secured to and saddles a respective rafter and as such the members may be incorporated in a variety of different roofing systems wherein the rafters are spaced apart at different distances. Roof insulating material pushed into the eaves ox the roof from inside may inhibit the air flow into the roof space in the regions between tube rafters and dueling members, but adequate ventilation still occurs via the flow channels defined by the duct forming portions of the members either side of the rafters.
Whilst the dueling members in accordance with the invention are sufficiently self supporting to maintain the duct forming portions substantially in their desired positions either side of the rafters, depending on the material from which they are made there may be some tendency for such portions to sag under their own weight. However, the engagement of the insulating material beneath each dueling member will be effective to urge the duct forming portions upwardly against the roof covering and this significantly reduces or prevents sagging of such portions.
In a preferred embodiment! each dueling member is generally "W" shaped in cross-section and thus includes a single duct forming portion each side of the rafter to which it is mounted. The dueling members may be formed from a substantially rigid material, e.g. extruded plastics. Alternatively, the members may be formed, e.g. ho mounding, from a light weight sheet material of greater flexibility.
In this case, the flexibility of the material may be such that where is an increased tendency for the duct forming portions either side of the rafters to sag, and preferably therefore each dueling- member ; includes strengthening ribs to provide additional support for the duct forming portions.
Accordingly, the invention extends to a dueling member adapted to be secured to a roof rafter in a roofing system, such member being in the Norm of a tray molded from light weight sheet material and comprising upwardly open duct-forming portions interconnected by a central portion of inverted I' NUT cros~-section adapted to saddle a root rafter in use, there being a plurality of longitudinally spaced, laterally directed strengthening ribs provided at least in the regions of the inner edges of the duct-forming portions arranged to cooperate with the side edges of a roof rafter in use, whereby to maintain tube bate of each duct forming portion substantially at right angles to the side edges of the rafter.
Where a roofing system in accordance with the invention includes an arrangement of Swift and fish at the eaves, means are preferably provided .,~
I
whereby air may flow from outside the roof into the space behind the Swift and fish. This may be achieved by providing ventilation apertures in the Swift and/or fish board Preferably, however, the system includes ventilation means which comprise a spacer member interposed between the roof covering and the fish board, said member comprising a first portion which extends outwardly from the fish board and includes downwardly facing ventilation openings, and an upstanding free edge portion which either directly or indirectly supports the roof covering and spaces the covering from the top of the fish board.
Certain embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, wherein:
Figure 1 is a sectional view of part of the eaves of a roofing system including a dueling member;
Figure 2 is a sectional view taken along line 11-11 in Figure l;
Figure 3 is a perspective view of an alternative embodiment of dueling member, and Figure 4 is a sectional view of part of the eaves of a roofing system including the dueling member shown in Figure 3.
Rerun firstly to Figures 1 and 2, a roofing system includes rafters 1 which are supported agent the eaves by the internal part 2 of an outside cavity wall of the building, as is conventional.
For clarity the roof covering, e.g. tiles or slates, which is secured to the rafters, is omitted from the drawings. Secured to and saddling each rafter as shown in Figure 2 is a dueling member 3 in the form of a substantially rigid extrusion which is generally "W" shaped in cross section Each ducking member includes a central portion 15 of inverted U cross-section and duct forming portions 16 which define either side of each rafter a ventilation ~L~3~27~
channel. The member 3 is sufficiently rigid for the duct forming portions to be self supporting Thus, the roof insulating material 4 which is typically pushed firmly into the eaves and may as shown in Figure 2 extend beyond the inner wall 2 of the cavity, is spaced from the roof covering either side of each rafter by the dueling members. Therefore, although the insulating material may be pressed firmly against the roof covering at the regions between the rafters and dueling members, as shown by the arrows in Figure 1, air may flow into the roof space through the channels formed either side of the rafters and adequate ventilation is achieved.
Figure 3 illustrates an alternative embodiment of dueling member 3 which differs from that shown in Figures 1 and 2 in that is formed from a light weight plastics sheet material-by a vacuum a molding technique. To minimize the tendency of the duct forming portions 16 of the dueling member of Fig.
3 to sag under their own weight, a plurality of laterally extending, longitudinally spaced strengthening ribs 5 are provided. In the illustrated embodiment, the ribs 5 are in the form of outwardly pressed generally nut shaped channels, although it will be appreciated that other rip configurations could be used, for example inwardly pressed channels.
When the member is mounted to a rafter such that the inverted unshipped portion 15 saddles the rafter, the ribs 5 provided on the side walls of portion 15 engage the side edges of the rafter.
The effect of this is to maintain the base I of each dust forming portion- substantially at right angles It the side edges of the rafter. It will be appreciated that the same effect could be achieved by providing strengthening ribs only in the regions of the inner edges of the portions 16, i.e. on the side walls of portion IS and adjacent the inner edge of the base 20 of each duct forming portion ~342~
16. The member 3 shown in Figure 3 is additionally provided with and a mesh 6 adapted to prevent insects entering the interior of the roof space Figure 4 illustrates the outer part of the eaves of a S roofing system incorporating a dueling member 3 as shown in Figure 3. A fish board 8 is secured to the ends of the rafters, and a Swift 9 extends between the outside wall and the Asia board B.
A spacer member 10 is interposed between the fish board 8 and the lowermost row of roof tiles 13.
The spacer member includes a first portion if extending outwardly from the fish board and an upstanding free edge portion 12 which supports the tiles 13.
The portion if includes a plurality of ventilation openings such that air may flow from outside the roof into the space defined behind the. Swift and fish and thereafter into the interior roof space via the channels defined by the dueling member 3, as shown by the arrows in Figure -4.
Rooting Systems This invention relates to rooting systems.
It is important in any roofing system that the interior of the roof space is adequately ventilated in order to reduce the effects of condensation which can cause premature deterioration of the rafters and other roof components. To this end it is known to provide ventilating means at the eaves of a roof whereby the flow of air is permitted from outside the roof to the interior roof space.
One such means it described in British Patent Specific cation No. 2131845 wherein a spacer member is interposed between the roof covering and the fish board at the eaves which defines ventilation openings permitting the flow of air into the roof space.
Other such proposals include the provision of ventilating apertures in the fish board itself or in the underlying Swift.
However, while such means allow air to flow into the space defined behind the Swift and fish boards, it is important that sir can flow thereafter into the remainder of the roof space and problems haze been encountered in this regard as a result AYE of the roof insulating material, typically a "quilt"
of fibre-glass or other like material, which is generally pushed firmly into the eaves from inside the roof, inhibiting the flow of air into the roof space. In order to overcome this problem, it is known to provide dueling members which are secured to and extend between the rafter adjacent the eaves. An example of such a dueling member or baffle is described in U.S. Patent No. swish members are effective to space the insulating material from the roof covering so as to define air flow passages there between. However, such dueling I, Jo ".~
~23~27~
members have the disadvantage that they do not adapt to different roof configurations with varying spacings between the rafters, and typically one member will only be suitable for use with a limited number of roofing systems.
According to the invention there is provided a roofing system including rafters with dueling members secured thereto adjacent the eaves each said dueling member being in the form of a tray comprising upwardly open duct-forming portions interconnected by a central portion of inverted "U" cross-section, the central portion saddling a single rafter with a duct forming portion on either side thereof defining flow passages which provide ventilation of the interior roof space, wherein the duct forming portions extend laterally only partially between the rafters and each said member is sufficiently self supporting to-maintain the duct forming portions substantially in the desired configuration thereof.
In accordance with the invention therefore a single dueling member is secured to and saddles a respective rafter and as such the members may be incorporated in a variety of different roofing systems wherein the rafters are spaced apart at different distances. Roof insulating material pushed into the eaves ox the roof from inside may inhibit the air flow into the roof space in the regions between tube rafters and dueling members, but adequate ventilation still occurs via the flow channels defined by the duct forming portions of the members either side of the rafters.
Whilst the dueling members in accordance with the invention are sufficiently self supporting to maintain the duct forming portions substantially in their desired positions either side of the rafters, depending on the material from which they are made there may be some tendency for such portions to sag under their own weight. However, the engagement of the insulating material beneath each dueling member will be effective to urge the duct forming portions upwardly against the roof covering and this significantly reduces or prevents sagging of such portions.
In a preferred embodiment! each dueling member is generally "W" shaped in cross-section and thus includes a single duct forming portion each side of the rafter to which it is mounted. The dueling members may be formed from a substantially rigid material, e.g. extruded plastics. Alternatively, the members may be formed, e.g. ho mounding, from a light weight sheet material of greater flexibility.
In this case, the flexibility of the material may be such that where is an increased tendency for the duct forming portions either side of the rafters to sag, and preferably therefore each dueling- member ; includes strengthening ribs to provide additional support for the duct forming portions.
Accordingly, the invention extends to a dueling member adapted to be secured to a roof rafter in a roofing system, such member being in the Norm of a tray molded from light weight sheet material and comprising upwardly open duct-forming portions interconnected by a central portion of inverted I' NUT cros~-section adapted to saddle a root rafter in use, there being a plurality of longitudinally spaced, laterally directed strengthening ribs provided at least in the regions of the inner edges of the duct-forming portions arranged to cooperate with the side edges of a roof rafter in use, whereby to maintain tube bate of each duct forming portion substantially at right angles to the side edges of the rafter.
Where a roofing system in accordance with the invention includes an arrangement of Swift and fish at the eaves, means are preferably provided .,~
I
whereby air may flow from outside the roof into the space behind the Swift and fish. This may be achieved by providing ventilation apertures in the Swift and/or fish board Preferably, however, the system includes ventilation means which comprise a spacer member interposed between the roof covering and the fish board, said member comprising a first portion which extends outwardly from the fish board and includes downwardly facing ventilation openings, and an upstanding free edge portion which either directly or indirectly supports the roof covering and spaces the covering from the top of the fish board.
Certain embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, wherein:
Figure 1 is a sectional view of part of the eaves of a roofing system including a dueling member;
Figure 2 is a sectional view taken along line 11-11 in Figure l;
Figure 3 is a perspective view of an alternative embodiment of dueling member, and Figure 4 is a sectional view of part of the eaves of a roofing system including the dueling member shown in Figure 3.
Rerun firstly to Figures 1 and 2, a roofing system includes rafters 1 which are supported agent the eaves by the internal part 2 of an outside cavity wall of the building, as is conventional.
For clarity the roof covering, e.g. tiles or slates, which is secured to the rafters, is omitted from the drawings. Secured to and saddling each rafter as shown in Figure 2 is a dueling member 3 in the form of a substantially rigid extrusion which is generally "W" shaped in cross section Each ducking member includes a central portion 15 of inverted U cross-section and duct forming portions 16 which define either side of each rafter a ventilation ~L~3~27~
channel. The member 3 is sufficiently rigid for the duct forming portions to be self supporting Thus, the roof insulating material 4 which is typically pushed firmly into the eaves and may as shown in Figure 2 extend beyond the inner wall 2 of the cavity, is spaced from the roof covering either side of each rafter by the dueling members. Therefore, although the insulating material may be pressed firmly against the roof covering at the regions between the rafters and dueling members, as shown by the arrows in Figure 1, air may flow into the roof space through the channels formed either side of the rafters and adequate ventilation is achieved.
Figure 3 illustrates an alternative embodiment of dueling member 3 which differs from that shown in Figures 1 and 2 in that is formed from a light weight plastics sheet material-by a vacuum a molding technique. To minimize the tendency of the duct forming portions 16 of the dueling member of Fig.
3 to sag under their own weight, a plurality of laterally extending, longitudinally spaced strengthening ribs 5 are provided. In the illustrated embodiment, the ribs 5 are in the form of outwardly pressed generally nut shaped channels, although it will be appreciated that other rip configurations could be used, for example inwardly pressed channels.
When the member is mounted to a rafter such that the inverted unshipped portion 15 saddles the rafter, the ribs 5 provided on the side walls of portion 15 engage the side edges of the rafter.
The effect of this is to maintain the base I of each dust forming portion- substantially at right angles It the side edges of the rafter. It will be appreciated that the same effect could be achieved by providing strengthening ribs only in the regions of the inner edges of the portions 16, i.e. on the side walls of portion IS and adjacent the inner edge of the base 20 of each duct forming portion ~342~
16. The member 3 shown in Figure 3 is additionally provided with and a mesh 6 adapted to prevent insects entering the interior of the roof space Figure 4 illustrates the outer part of the eaves of a S roofing system incorporating a dueling member 3 as shown in Figure 3. A fish board 8 is secured to the ends of the rafters, and a Swift 9 extends between the outside wall and the Asia board B.
A spacer member 10 is interposed between the fish board 8 and the lowermost row of roof tiles 13.
The spacer member includes a first portion if extending outwardly from the fish board and an upstanding free edge portion 12 which supports the tiles 13.
The portion if includes a plurality of ventilation openings such that air may flow from outside the roof into the space defined behind the. Swift and fish and thereafter into the interior roof space via the channels defined by the dueling member 3, as shown by the arrows in Figure -4.
Claims (8)
1. A roofing system including rafters with ducting members secured thereto adjacent the eaves, each said ducting member being in the form of a tray comprising upwardly open duct-forming portions having respective inner side walls interconnected by a central portion defining with the side walls an inverted "U", the duct forming portions defining flow passages which provide ventilation of the interior roof space, wherein each ducting member is supported on a single rafter by means of the inverted "U" saddling the rafter, and the duct forming portions on each side of the rafter extend laterally only part way towards the respective next adjacent rafter, each ducting member being sufficiently self supporting when saddling the respective rafter that the base of each duct forming portion extends substantially perpendicular to the side edges of the rafter.
2. A roofing system as claimed in claim 1 wherein each ducting member is formed from a substantially rigid material.
3. A roofing system as claimed in claim 1 wherein each ducting member is formed from a light weight sheet material and includes strengthening ribs which provide support for the duct forming portions.
4. A roofing system as claimed in claim 3 wherein the ribs comprise a plurality of longitudinally spaced, laterally directed channels of generally "U" shaped cross-section pressed from said duct-forming portions, there being portions of the ribs on the inner side walls of the duct forming portions which engage the side edges of the rafter on which the ducting member is supposed and which continue round to portions on the base of the duct forming portions.
5. A ducting member for use in a roofing system as claimed in claim 3, such member being in the form of a tray moulded from light weight sheet material and comprising upwardly open duct-forming portions having respective inner side walls inter-connected by a central portion defining with the side walls an inverted "U" adapted to saddle a roof rafter in use, there being a plurality of longitudinally spaced, laterally directed strengthening ribs which extend at least from the inner side wall of each duct forming portion around to adjacent the inner edge of the base thereof and which in use when the member saddles a rafter maintain the base of each duct forming portion substantially perpendicular to the side edges of the rafter.
6. A ducting member as claimed in claim 5 wherein portions of the ribs provided on said inner side walls of the duct forming portions extend up to the surface of the central portion.
7. A ducting member as claimed in claim 6 wherein the ribs extend laterally across the whole width of the bases of the respective duct forming portions and upwardly to the top of outer side walls thereof.
8. A ducting member as claimed in claim 5 wherein the ribs are in the form of channels of generally "U" shaped cross-section.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838323159A GB8323159D0 (en) | 1983-08-30 | 1983-08-30 | Roofing systems |
GB8323159 | 1983-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1234271A true CA1234271A (en) | 1988-03-22 |
Family
ID=10548018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000462003A Expired CA1234271A (en) | 1983-08-30 | 1984-08-29 | Roofing systems |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS60138141A (en) |
AT (1) | AT389139B (en) |
CA (1) | CA1234271A (en) |
DE (1) | DE3431208A1 (en) |
FR (1) | FR2551118B1 (en) |
GB (2) | GB8323159D0 (en) |
IE (1) | IE55657B1 (en) |
ZA (1) | ZA846538B (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8421657D0 (en) * | 1984-08-25 | 1984-09-26 | Glidevale Building Prod | Ventilator |
GB8507138D0 (en) * | 1985-03-20 | 1985-04-24 | Phillips P J | Roof eaves assembly |
GB9002175D0 (en) * | 1990-01-31 | 1990-03-28 | Shillabeer John L | Eaves ventilation |
US5094054A (en) * | 1990-09-11 | 1992-03-10 | Arends William R | Method and apparatus for venting building structures |
GB2281389A (en) * | 1993-08-21 | 1995-03-01 | Paul Bottomore | Ventilator |
GB9414719D0 (en) * | 1994-07-21 | 1994-09-07 | Willan Building Services Ltd | Ventilation structure |
US5596847A (en) * | 1994-10-14 | 1997-01-28 | Inno-Vent Plastics, Inc. | Baffle vent structure |
US5600928A (en) * | 1995-07-27 | 1997-02-11 | Uc Industries, Inc. | Roof vent panel |
GB2304887B (en) * | 1995-08-26 | 1999-11-17 | Willan Building Services Ltd | Roof ventilation system |
WO2001065539A1 (en) * | 2000-02-29 | 2001-09-07 | Yoshihiro Shiotani | Vacuum soundproof material |
US7302776B2 (en) * | 2003-09-19 | 2007-12-04 | Certainteed Corporation | Baffled attic vent |
JP4863246B2 (en) * | 2004-10-20 | 2012-01-25 | ミサワホーム株式会社 | Heat shield and roof structure with heat shield |
US20070094966A1 (en) | 2004-11-23 | 2007-05-03 | Certainteed Corporation | Insulation Batt Having Integral Baffle Vent |
US7644545B2 (en) | 2004-11-23 | 2010-01-12 | Certainteed Corporation | Insulation batt having integral baffle vent |
JP4708782B2 (en) * | 2004-12-21 | 2011-06-22 | ミサワホーム株式会社 | Roof structure |
US7818922B2 (en) * | 2005-04-01 | 2010-10-26 | Billy Ellis | Thermal insulation for a building |
US7856764B2 (en) * | 2006-06-12 | 2010-12-28 | Brentwood Industries, Inc. | Cathedral ceiling vent baffle |
GB2460713A (en) * | 2008-06-09 | 2009-12-16 | William Henry Twine | Insulation and ventilation method for use in roof space |
CA2839587C (en) | 2011-06-17 | 2021-08-24 | Basf Se | High performance wall assembly |
WO2012174408A2 (en) | 2011-06-17 | 2012-12-20 | Basf Se | Prefabricated wall assembly having an outer foam layer |
WO2016118493A1 (en) | 2015-01-19 | 2016-07-28 | Basf Se | Wall assembly |
US10801197B2 (en) | 2015-01-19 | 2020-10-13 | Basf Se | Wall assembly having a spacer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2477152A (en) * | 1946-02-28 | 1949-07-26 | Stevenson Robert | Method of equalizing temperatures by ventilation |
US4102092A (en) * | 1977-04-15 | 1978-07-25 | Ward Bruce K | Venting device |
US4096790A (en) * | 1977-06-24 | 1978-06-27 | Curran Laurence E | Ventilation and insulation baffle |
US4125971A (en) * | 1977-09-19 | 1978-11-21 | Diversified Insulation, Inc. | Vent and baffle |
GB2127060B (en) * | 1982-09-13 | 1986-07-30 | Redland Roof Tiles Ltd | Improvements in roof ventilation |
-
1983
- 1983-08-30 GB GB838323159A patent/GB8323159D0/en active Pending
-
1984
- 1984-08-22 ZA ZA846538A patent/ZA846538B/en unknown
- 1984-08-24 DE DE19843431208 patent/DE3431208A1/en not_active Ceased
- 1984-08-29 AT AT0277284A patent/AT389139B/en not_active IP Right Cessation
- 1984-08-29 CA CA000462003A patent/CA1234271A/en not_active Expired
- 1984-08-29 IE IE2206/84A patent/IE55657B1/en not_active IP Right Cessation
- 1984-08-30 FR FR8413453A patent/FR2551118B1/en not_active Expired
- 1984-08-30 GB GB08421904A patent/GB2145756B/en not_active Expired
- 1984-08-30 JP JP59181619A patent/JPS60138141A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
IE842206L (en) | 1985-02-28 |
GB8421904D0 (en) | 1984-10-03 |
IE55657B1 (en) | 1990-12-05 |
GB2145756B (en) | 1986-09-24 |
FR2551118B1 (en) | 1988-06-10 |
GB8323159D0 (en) | 1983-09-28 |
ZA846538B (en) | 1985-03-27 |
GB2145756A (en) | 1985-04-03 |
AT389139B (en) | 1989-10-25 |
JPH0342386B2 (en) | 1991-06-27 |
ATA277284A (en) | 1989-03-15 |
JPS60138141A (en) | 1985-07-22 |
FR2551118A1 (en) | 1985-03-01 |
DE3431208A1 (en) | 1985-03-21 |
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