US20060070315A1 - Knock-down roof curb - Google Patents

Knock-down roof curb Download PDF

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Publication number
US20060070315A1
US20060070315A1 US10/944,714 US94471404A US2006070315A1 US 20060070315 A1 US20060070315 A1 US 20060070315A1 US 94471404 A US94471404 A US 94471404A US 2006070315 A1 US2006070315 A1 US 2006070315A1
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US
United States
Prior art keywords
roof
extrusion
curb
roof curb
panel
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
Application number
US10/944,714
Other languages
English (en)
Inventor
Richard McClure
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Butler Manufacturing Co
Original Assignee
Butler Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Butler Manufacturing Co filed Critical Butler Manufacturing Co
Priority to US10/944,714 priority Critical patent/US20060070315A1/en
Assigned to BUTLER MANUFACTURING COMPANY reassignment BUTLER MANUFACTURING COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MCCLURE, RICHARD R.
Priority to CN2004800440400A priority patent/CN101052771B/zh
Priority to CA2580450A priority patent/CA2580450C/en
Priority to PCT/US2004/037248 priority patent/WO2006036161A1/en
Priority to JP2007532305A priority patent/JP4805937B2/ja
Publication of US20060070315A1 publication Critical patent/US20060070315A1/en
Priority to US11/563,513 priority patent/US7712279B2/en
Abandoned legal-status Critical Current

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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
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/0305—Supports or connecting means for sky-lights of flat or domed shape
    • E04D13/0315—Supports or connecting means for sky-lights of flat or domed shape characterised by a curb frame

Definitions

  • Metal buildings having metal roofing have become popular for commercial, industrial and warehousing uses. These buildings often require roof openings for skylights, fans, air conditioning units and the like. The installation of such equipment requires a roof curb for support.
  • roof curbs have been designed specifically and custom made to provide a relatively horizontal mounting structure for a particular rooftop appliance given the shape and pitch of a particular roof. Designing and building these traditional roof curbs, often formed from a singular piece of metal to uniquely accommodate a particular roof pitch, has been a laborious and time consuming task for roof curb manufacturers and rooftop appliance installers. Further, because these roof curbs are installed in a metal roof system, the actual opening may vary with respect to the roof panel corrugations, seams or ribs, which may be ascertainable only shortly before installation. This untimely design-and-build practice delays appliance installation.
  • Prefabricated roof curbs tend to be quite large, thus have been difficult to ship in a cost effective and timely fashion, let alone by traditional rapid delivery methods. Consequently, roof curb manufacturers have had to ship their products by truck, which is slower and more expensive.
  • Traditional roof curbs include four coated steel curb walls positioned to define an open rectangular frame joined by factory welding at the corners. Because welding burns off the corrosion resistant coating of the steel, the manufacturer or installer must provide an additional coating of rust inhibitor paint to keep the roof curb from rusting when installed on the roof. Routine rust inhibitor paint coatings are required to protect the roof curb throughout the life of the product. Mechanical attachment, such as with threaded fasteners, may secure the corners without welding. However, on-site sizing and drilling of traditional roof curb panels creates exposure to corrosive weathering.
  • the invention is a standardized, corrosion-resistant roof curb that can be shipped in a disassembled state, which an installer may assemble, size, locate and configure to provide an appropriate roof slope on any roof without welding.
  • the invention provides improved elements and arrangements thereof, for the purposes described, which are inexpensive, dependable and effective in accomplishing intended purposes of the invention.
  • An embodiment configured according to principles of the invention includes an aluminum panel and an extrusion configured to receive the panel, wherein said panel is trimmed according to the pitch of the roof.
  • FIG. 1 is an environmental perspective view of an embodiment constructed according to principles of the invention
  • FIG. 2 is an exploded environmental perspective view of the embodiment of FIG. 1 ;
  • FIG. 3 is an environmental perspective view of a portion of the embodiment of FIG. 1 ;
  • FIG. 4 is a cross-sectional detail view drawn along line IV-IV in FIG. 2 ;
  • FIG. 5 is an environmental perspective view of another embodiment constructed according to principles of the invention.
  • FIG. 6 is an exploded environmental perspective view of the embodiment of FIG. 5 ;
  • FIG. 7 is a flow chart of a method of making the embodiment of FIG. 1 ;
  • FIG. 8 is a schematic representation of the embodiment of FIG. 7 ;
  • FIG. 9 is a flow chart of a method of making the embodiment of FIG. 5 ;
  • FIG. 10 is a schematic representation of the embodiment of FIG. 9 ;
  • FIG. 11 is a flow chart of a method of installing the embodiment of FIG. 1 ;
  • FIG. 12 is a schematic representation of the embodiment of FIG. 11 ;
  • FIG. 13 is a flow chart of a method of installing the embodiment of FIG. 5 ;
  • FIGS. 14 a and 14 b are a schematic representation of the embodiment of FIG. 13 .
  • an embodiment of a roof curb 100 configured according to the invention includes four walls 105 interconnected with four connection blocks 110 , defining a roof curb base 112 , for mounting on a roof R.
  • Four composite boards 115 mount on walls 105 and support an appliance (not shown).
  • walls 105 are cut into standardized lengths that foster ready packaging in standard shipping containers along with other components described herein for conventional or overnight courier delivery.
  • Aluminum extrusion stock permits on-site sizing of the standard pieces without local burning off of corrosion resistant coatings ordinarily required for steel stock. Using aluminum stock also eliminates routine rust inhibitor paint coatings that would be required to protect steel stock.
  • each wall 105 is constructed of extruded aluminum having a lower flange 120 and an upper channel 125 .
  • Each flange 120 is inwardly-disposed to limit exposure of fasteners and other mounting mechanisms and sealing to the elements.
  • Each flange 120 has chamfered ends 130 that promote flushness along the entire contacting surface of flange 120 with roof R.
  • Each channel 125 is configured to receive and retain a composite board 115 .
  • Channels 125 are inwardly disposed so as to define, in conjunction with wall 105 , a generally uniform vertical wall 127 without ledges or partial enclosures that might find favor with unwanted insects and vermin.
  • Flange 120 , vertical wall 127 and channel 125 define a pocket 128 for receiving insulation, as described below.
  • Side walls 105 a have an edge 107 a that provides a continuous, water-tight seal with roof R.
  • Top and bottom walls 105 b have notches 109 for alignment with and accommodation of seams or ribs F extending from roof R, thus defining an edge 107 b that also provides a continuous, water-tight seal with roof R.
  • each connection block 110 is constructed from aluminum and has pre-drilled throughbores 114 at predetermined locations.
  • a roof curb installer introduces holes at the ends of walls 105 according to a template, as shown in FIG. 8 , that register with throughbores 114 .
  • composite boards 115 are Trex® boards, which are constructed from a combination of reclaimed wood and plastic.
  • the plastic component shields the wood component from moisture and insect damage, reducing or eliminating rotting or splintering.
  • the wood component protects the plastic component from ultraviolet radiation damage from ordinary sunlight, ensuring integrity longer than would be expected from products constructed from purely plastic or purely wood.
  • top support channel 135 is similar to bottom support channel 140 , which is common to roof curb 100 and roof curb 200 , as shown in FIG. 6 .
  • Top support channel 135 and bottom support channel 140 each have generally perpendicular ribs 136 and 141 , respectively. Ribs 136 , 141 strengthen and enhance top support channel 135 and bottom support channel 140 load bearing capabilities.
  • Top support channel 135 has flanges 137 and bottom support channel 140 has flanges 143 that mount onto structural members S supporting roof R. When installed, top support channel 135 and bottom support channel 140 each support a wall 105 b, and support members S support the remaining walls 105 a.
  • roof curb 200 configured according to the invention provides for diverting water that otherwise might accumulate along the upper, laterally-extending intersection of roof R and roof curb 200 .
  • the water diverting feature of roof curb 200 is intended for larger installationsthat would be susceptible to collecting large amounts of water.
  • Roof curb 200 includes four walls 205 interconnected with four connection blocks 210 , defining a roof curb base 212 , that mounts on roof R.
  • Four composite boards 215 mount on walls 205 and support an appliance (not shown). Roof curb 200 is similar to roof curb 100 , except as described below.
  • diverter plate 235 covers a portion of roof R removed so that ribs F in roof R do not prevent flush mounting of diverter angle 245 on roof R against roof curb 200 .
  • diverter plate 235 has strengthening ribs 236 for supporting wall 205 and diverter angle 245 .
  • Diverter angle 245 has upstanding flanges 247 that define an impervious dihedral angle 249 .
  • Angle 249 is such that flanges 247 provide a flow path for water to pass around roof curb 200 , rather than collect against the upwardly disposed wall 205 , which, over time, might cause local corrosion or sealant failures.
  • Diverter angle 245 is sealingly connected to diverter plate 235 . In operation, water flowing down roof R toward roof curb 200 would encounter then flow along flanges 247 , then onto the portion of roof R lateral to roof curb 200 , thereby bypassing roof curb 200 and continuing to flow down roof R.
  • an embodiment of a method of making 300 roof curb 100 configured according to the invention includes: a step 305 of determining curb size; a step 310 of cutting extrusions; a step 315 of cutting bottom extrusion; a step 320 of cutting steel channels; a step 325 of drilling corner connections; a step 330 of applying corner block mastic; a step 335 of assembling extrusion corners; a step 340 of determining composite board dimensions; and a step 345 of cutting composite boards.
  • step 305 involves determining a curb size to ascertain a curb length for walls 105 a, as shown in FIG. 1 , and a curb width for walls 105 b, top support channel 135 and bottom support channel 140 , as shown in FIG. 2 .
  • Step 310 involves cutting the side extrusions or walls 105 a according to the curb length of step 305 .
  • a roof curb assembler uses a 12-inch compound-sliding miter-saw with a carbide tooth blade for cutting aluminum. Mitering the interfaces among walls 105 promotes relative flushness as well as flushness with respect to roof R.
  • Step 315 involves cutting the top and bottom extrusions or walls 105 b according to the curb width of step 305 .
  • Step 315 differs from step 310 in that a roof curb assembler must cut walls 105 b so as to accommodate seams or corrugations in roof R.
  • Step 320 involves cutting top support channel 135 and bottom support channel 140 according to the curb width of step 305 .
  • a roof curb assembler uses an angle grinder with cutoff blade.
  • Top support channel 135 and bottom support channel 140 also may require notching to accommodate roof support structures.
  • Step 325 involves aligning a template relative to and drilling pilot holes through walls 105 so as to register with throughbores 112 in connection blocks 110 .
  • a roof curb assembler temporarily maintains relative positioning of the template and walls 105 with a locking C-clamp.
  • the roof curb assembler drills two 5/16-inch diameter holes at each end of each of walls 105 .
  • Step 330 involves applying a 5/16-inch diameter bead of gun grade sealant, preferably Panlastic, to the top, bottom and corner of each of corner blocks 110 with a caulking gun.
  • gun grade sealant preferably Panlastic
  • Step 335 involves driving 1 ⁇ 4-inch ⁇ 1 ⁇ 2-inch phillips head bolts through the holes in walls 105 and corner connection blocks 110 . Tightening the bolts urges walls 105 and corner connection blocks 110 to come together, and urges the mastic applied to corner connection blocks 110 at step 330 to flow into any gaps, thereby sealing the joint.
  • Step 340 involves determining the slope or pitch of roof R, and an appropriate measurement for the “X” dimension shown in FIG. 8 , corresponding to the pitch so that composite boards 115 provide a generally level mounting area for an appliance (not shown).
  • the “Y” dimension is fixed, preferably at 5-1 ⁇ 2 inches.
  • stock Trex® boards 115 for cutting are 5/4-inch ⁇ 6-inches.
  • Step 345 involves using a circular, table or radial-arm saw equipped with a wood-cutting carbide blade to cut stock Trex® boards 115 as required to fit tightly in channels 125 .
  • an embodiment of a method of making 500 roof curb 200 configured according to the invention includes: a step 505 of determining curb size; a step 510 of cutting extrusions; a step 515 of cutting bottom extrusion; a step 520 of cutting steel channels; a step 523 of cutting diverter plate; a step 525 of drilling corner connections; a step 530 of applying corner block mastic; a step 535 of assembling extrusion corners; a step 540 of determining composite board dimensions; and a step 545 of cutting composite boards.
  • Step 523 involves cutting diverter plate 235 according to the curb width determined at step 505 , which is similar to step 305 .
  • a roof curb assembler must cut diverter plate 235 so as to accommodate seams, corrugations or ribs F in roof R. Specifically, holes in diverter plate 235 must align with ribs F.
  • an embodiment of a method of installing 400 roof curb 100 configured according to the invention includes: a step 405 of marking roof for cutout; a step 410 of placing walkboards for support; a step 415 of cutting panel; a step 420 of installing side support channels; a step 425 of installing rear support channel; a step 430 of applying mastic for curb; a step 435 of installing curb base; a step 440 of cleaning area; a step 445 of applying sealant; a step 450 of applying mastic; a step 455 of installing composite boards; a step 460 of applying foam tape and sealant at board joints; a step 465 of cutting out insulation; and a step 470 of installing retainers.
  • step 405 involves placing roof curb 100 , as assembled above, onto the portion of roof R where an appliance is desired.
  • Bottom wall 105 b should vertically register with supporting structural purlin.
  • a minimum 6-inch distance should exist between top wall 105 b and the upper supporting structural purlin.
  • a roof curb installer then traces along the interior of flanges 120 of roof curb 100 with a standard lead or grease pencil.
  • Step 410 involves disposing boards or paneling, having sufficient strength to maintain a roof curb installer's weight on roof R, just outside of the tracing generated in step 405 , proximate to where the roof curb installer will cut roof R.
  • Step 415 involves drilling 1 ⁇ 2-inch starter holes in roof R at each corner of the tracing of step 405 , then using a double-cut shear, which minimizes shavings and chips, to cut roof R along the tracing.
  • a roof curb installer will need a reciprocating saw to cut through corrugations in roof R.
  • Step 420 involves sizing and temporarily clamping in place side support channels on top of any insulation and between the upper supporting structural purlin and lower supporting structural purlin, just outside of the lateral edges of the hole in roof R generated at step 415 .
  • Step 425 involves sizing and temporarily clamping in place a bottom support channel between the side support channels installed in step 420 , just outside of the bottom edge of the hole in roof R generated at step 415 .
  • Step 430 involves inserting lockseam plugs on the bottom corrugations occurring along the bottom edge of the hole in roof R generated at step 415 .
  • the lockseam plugs may be filled with mastic.
  • a roof curb installer applies 1 ⁇ 8-inch ⁇ 1 ⁇ 2-inch Panlastic tape over the lockseam plugs around and aligned with the edges defining the hole in roof R. The tape should be butted, not lapped, at corners. Finally, the roof curb installer applies a continuous bead of sealant on top of the tape.
  • Step 435 involves positioning roof curb 100 over the prepared hole in roof R and securing flanges 120 of roof curb 100 to the support channels with self-drilling 1 ⁇ 4-inch ⁇ 7 ⁇ 8-inch metal screws at six-inch intervals.
  • Step 440 involves sweeping or vacuuming away all metal chips and shavings.
  • Step 445 involves applying a continuous bead of sealant around the intersection of roof R and roof curb 100 .
  • Step 450 involves applying gun grade mastic in the outer corner of channels 125 of walls 105 and to the butt ends of composite boards 115 .
  • Step 455 involves attaching composite boards 115 to walls 105 with self-drilling 1 ⁇ 4-inch ⁇ 7 ⁇ 8-inch metal screws, and to adjoining composite boards 115 with self-drilling #6 ⁇ 2-inch screws.
  • Step 460 involves applying sealant along the joint between walls 105 and composite boards 115 .
  • the roof curb installer then applies foam tape on the top surfaces of the composite boards 115 .
  • Step 465 involves trimming a four-inch wide roll of insulation from building scrap.
  • the roof curb installer places the insulation in pocket 128 in walls 105 defined by channel 125 , vertical wall 127 and flange 120 , as shown in FIG. 4 .
  • Temporary adhesive may aid in retaining the insulation in pocket 128 .
  • the roof curb installer then slits the building insulation from each roof curb corner inwardly, then removes the insulation from the facing.
  • the roof curb installer folds the facing up each inner side of roof curb 100 and secures the folds thereto with retainers and self-drilling screws.
  • the roof curb installer then tapes each corner to seal vapor retarder completely.
  • an embodiment of a method of installing 600 roof curb 200 configured according to the invention includes: a step 605 of marking roof for cutout; a step 607 of marking roof for diverter plate; a step 615 of cutting panel; a step 620 of installing side support channels; a step 625 of installing rear support channel; a step 627 of preparing diverter plate; a step 628 of installing diverter plate; a step 630 of applying mastic for curb; a step 635 of installing curb base; a step 637 of preparing diverter angle; a step 638 of installing diverter angle; a step 640 of cleaning area; a step 645 of applying sealant; a step 650 of applying mastic; a step 655 of installing composite boards; a step 660 of applying foam tape and sealant at composite board joints; a step 665 of cutting out insulation; and a step 670 of installing retainers.
  • Step 607 involves placing diverter plate 235 adjacent to the top edge of the tracing generated in step 605 , which is similar to step 405 , and tracing around diverter plate 235 .
  • Step 627 involves attaching corrugation plugs to diverter plate 235 over the holes aligned with ribs F in roof R.
  • the roof curb installer applies tape Panlastic over the side and outer edges of diverter plate 235 , being careful to butt and not lap the ends, so that a minimum of 1 ⁇ 4 inch is exposed around the panel cut out.
  • the roof curb installer applies gun grade mastic over the tape Panlastic.
  • Step 628 involves placing diverter plate 235 in the cutout in roof R so that corrugation plugs snugly fit in the corrugations in roof R.
  • Self-drilling threaded fasteners secure diverter plate to roof R. Mastic must be applied around holes on the bottom side of the panel strips.
  • Step 637 involves applying a 5/16-inch bead of mastic to the back and 1 ⁇ 8-inch ⁇ 11 ⁇ 2-inch tape Panlastic to bottom of diverter angle 245 , then positioning diverter angle 245 against roof curb 200 on roof R.
  • Step 638 involves securing diverter angle 245 to roof curb 200 and roof R with self-drilling threaded fasteners.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
US10/944,714 2004-09-21 2004-09-21 Knock-down roof curb Abandoned US20060070315A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/944,714 US20060070315A1 (en) 2004-09-21 2004-09-21 Knock-down roof curb
CN2004800440400A CN101052771B (zh) 2004-09-21 2004-11-09 拼装式屋顶架台
CA2580450A CA2580450C (en) 2004-09-21 2004-11-09 Knock-down roof curb
PCT/US2004/037248 WO2006036161A1 (en) 2004-09-21 2004-11-09 Knock-down roof curb
JP2007532305A JP4805937B2 (ja) 2004-09-21 2004-11-09 組み立て式屋根用囲い枠組
US11/563,513 US7712279B2 (en) 2004-09-21 2006-11-27 Knock-down roof curb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/944,714 US20060070315A1 (en) 2004-09-21 2004-09-21 Knock-down roof curb

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/563,513 Continuation US7712279B2 (en) 2004-09-21 2006-11-27 Knock-down roof curb

Publications (1)

Publication Number Publication Date
US20060070315A1 true US20060070315A1 (en) 2006-04-06

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Family Applications (2)

Application Number Title Priority Date Filing Date
US10/944,714 Abandoned US20060070315A1 (en) 2004-09-21 2004-09-21 Knock-down roof curb
US11/563,513 Expired - Fee Related US7712279B2 (en) 2004-09-21 2006-11-27 Knock-down roof curb

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/563,513 Expired - Fee Related US7712279B2 (en) 2004-09-21 2006-11-27 Knock-down roof curb

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US (2) US20060070315A1 (de)
JP (1) JP4805937B2 (de)
CN (1) CN101052771B (de)
CA (1) CA2580450C (de)
WO (1) WO2006036161A1 (de)

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US20120324809A1 (en) * 2011-06-21 2012-12-27 John Duffin Insulated roof window
US20140109497A1 (en) * 2008-10-02 2014-04-24 Timothy Pendley Support structures on roofs
US9032671B1 (en) * 2014-01-17 2015-05-19 T&M Inventions, Llc Support structure using extended-length diverter
US9316001B2 (en) * 2012-11-22 2016-04-19 Forticrete Limited Roof drainage system
USD765492S1 (en) 2015-01-20 2016-09-06 David Akers Roof equipment mounting brackets
US9625175B2 (en) * 2013-07-29 2017-04-18 Cox Engineering Company Curb adapter
US10352048B2 (en) * 2016-10-13 2019-07-16 T&M Inventions, Llc Load support structure for use on roof
US10385570B2 (en) 2008-10-02 2019-08-20 T&M Inventions, Llc Supporting a load on a roof
US20200181916A1 (en) * 2018-12-05 2020-06-11 Jonathan Martin Leinbach Roof vent for a corrugated metal roof
USD944965S1 (en) * 2018-01-15 2022-03-01 Robert Reap Roof aperture curb with offset cleat

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US7954286B2 (en) * 2006-05-26 2011-06-07 Building Materials Investment Corporation Heat weldable pipe curb accessory
NZ592874A (en) * 2008-10-02 2012-10-26 T & M Inv S Llc Skylight or vent system for roof supported from ridges of roof sheets with raised ribs corresponding to sheet overlapping portions
US8438801B2 (en) * 2011-03-14 2013-05-14 T&M Inventions, Llc Support structures on roofs
US8438800B2 (en) * 2011-03-14 2013-05-14 T&M Inventions, Llc Support structures on roofs
US9127461B2 (en) * 2011-04-14 2015-09-08 T&M Inventions, Llc Thermal barrier about roof support structure
US9677279B2 (en) 2011-04-14 2017-06-13 T&M Inventions, Llc Condensation control in a roof mounted load support structure
US9637927B2 (en) * 2011-04-14 2017-05-02 T&M Inventions, Llc Diverter
US8943767B2 (en) * 2013-03-11 2015-02-03 David L. Lewis Cover device and cover device kit
US9534390B2 (en) 2013-03-15 2017-01-03 T&M Inventions, Llc Support structures on roofs
TWM470868U (zh) * 2013-10-07 2014-01-21 Ya-Ching Chan 屋頂逃生用基座
US9151057B2 (en) * 2013-11-05 2015-10-06 Standard Sheet metal, Inc. Roof curb
WO2016049188A1 (en) 2014-09-24 2016-03-31 Nucor Corporation Pre-fabricated domed skylight system
US9909318B2 (en) * 2015-07-21 2018-03-06 Ezy-Curb, Llc Roof curb system and method of installing
US11242685B2 (en) * 2019-12-26 2022-02-08 T&M Inventions, Llc Rooftop-mountable load support structure with adapter plug(s)
US11746530B2 (en) 2020-06-30 2023-09-05 Austin Building And Design Inc. Multiple roof curbs for supporting a rooftop mechanical unit

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US10385570B2 (en) 2008-10-02 2019-08-20 T&M Inventions, Llc Supporting a load on a roof
US20140109497A1 (en) * 2008-10-02 2014-04-24 Timothy Pendley Support structures on roofs
US10947731B2 (en) 2008-10-02 2021-03-16 T&M Inventions, Llc Supporting a load on a roof
US10577803B2 (en) * 2008-10-02 2020-03-03 T&M Inventions, Llc Supporting a load on a roof
US9441377B2 (en) * 2008-10-02 2016-09-13 T&M Inventions, Llc Support structures on roofs
US20120324809A1 (en) * 2011-06-21 2012-12-27 John Duffin Insulated roof window
US9316001B2 (en) * 2012-11-22 2016-04-19 Forticrete Limited Roof drainage system
US9625175B2 (en) * 2013-07-29 2017-04-18 Cox Engineering Company Curb adapter
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USD765492S1 (en) 2015-01-20 2016-09-06 David Akers Roof equipment mounting brackets
US10352048B2 (en) * 2016-10-13 2019-07-16 T&M Inventions, Llc Load support structure for use on roof
US10900232B2 (en) 2016-10-13 2021-01-26 T&M Inventions, Llc Load support structure for use on roof
USD944965S1 (en) * 2018-01-15 2022-03-01 Robert Reap Roof aperture curb with offset cleat
US20200181916A1 (en) * 2018-12-05 2020-06-11 Jonathan Martin Leinbach Roof vent for a corrugated metal roof

Also Published As

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CA2580450C (en) 2010-08-31
CN101052771B (zh) 2011-06-22
US7712279B2 (en) 2010-05-11
JP2008513640A (ja) 2008-05-01
CN101052771A (zh) 2007-10-10
CA2580450A1 (en) 2006-04-06
US20070094984A1 (en) 2007-05-03
JP4805937B2 (ja) 2011-11-02
WO2006036161A1 (en) 2006-04-06

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