US20170058523A1 - Insulated modular roof system - Google Patents
Insulated modular roof system Download PDFInfo
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- US20170058523A1 US20170058523A1 US15/253,858 US201615253858A US2017058523A1 US 20170058523 A1 US20170058523 A1 US 20170058523A1 US 201615253858 A US201615253858 A US 201615253858A US 2017058523 A1 US2017058523 A1 US 2017058523A1
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- modular
- planar member
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- panels
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/06—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of plastics
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/50—Self-supporting slabs specially adapted for making floors ceilings, or roofs, e.g. able to be loaded
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- 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
-
- 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
- E04D13/1687—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 the insulating material having provisions for roof drainage
- E04D13/1693—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 the insulating material having provisions for roof drainage the upper surface of the insulating material forming an inclined surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/14—Fastening means therefor
- E04D5/148—Fastening means therefor fastening by gluing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2002/001—Mechanical features of panels
- E04C2002/004—Panels with profiled edges, e.g. stepped, serrated
Definitions
- This invention relates to roofing systems, in particular insulated modular roofing systems.
- roofing systems are known both for flat and sloped roofs to insulate and waterproof the roof.
- the most common roofing system for waterproofing is a built up laminar structure comprising a plurality of felt layers with each layer or series of layers over-laid with a hot bituminous (tar) composition to bind the felt to the roof.
- tar bituminous
- a layer of gravel tops off the structure.
- this is a very labour intensive process and requires onsite machines and equipment (e.g. to provide the hot tar).
- U.S. Pat. No. 6,418,687 is directed for retro-fitting roofs, is field applied and non-modular.
- the foamed in place insulation described in this patent is designed to be applied over a roof deck or existing roof substrate and a rubber membrane is then glued over top of the sprayed insulation.
- a foamed-in place roofing installation is still very labour intensive to apply and requires spray foaming equipment on-site.
- one spray-foams a large surface area there are often ripples, localized hills and valleys and other imperfections that are formed and which translate into corresponding ripples, hills, valleys and imperfections in the overlying rubber membrane. These imperfects can then trap water or other precipitation in localized areas, preventing desired run-off, and ultimately resulting in ponding and of such standing water seeping through cracks in the rubber membrane.
- a modular roofing system which can be applied in new buildings, reduces on-site installation time, does not require a pre-existing, pre-sloped roof deck, does not require (or reduces the need for) on-site spay-foaming equipment, can be installed by unskilled laborers and can provide for an overall slope to the resulting roof structure.
- an insulated modular roof system for a roof structure.
- the system comprises a plurality of modular panels suitable for installation onto the roof structure and a water-proof membrane.
- each of the modular panels comprises a first planar member, an insulating layer covering substantially all of the first planar member and a plurality of lateral edges.
- Each of the plurality of lateral edges provides either a step-like configuration or a reverse step-like configuration.
- the plurality of modular panels are positionable so as to place the plurality of lateral edges of any two adjacent modular panels in a generally overlapping arrangement.
- FIG. 1 is a perspective, partial cut-away view of most of the components of a first embodiment of the insulated modular roof system
- FIG. 2A is a perspective side view of most of the components of the embodiment of the insulated modular roof system of FIG. 1 ;
- FIG. 2B is a sectional side view of a modular panel of the embodiment of the insulated modular roof system of FIG. 1 ;
- FIG. 2C is a sectional side view of the modular insulated roof system of the embodiment of FIG. 1 , illustrating the overlapping area and overlap width;
- FIGS. 3A and 3B are partially exploded and partially cut-away perspective views of a modular panel of another embodiment of the insulated modular roof system of FIG. 1 , with the water-proof member provided in sections on each modular panel;
- FIG. 4 is a perspective view of most of the components of another embodiment of the insulated modular roof system, illustrating a slight slope to the overall roof system;
- FIG. 5 is a sectional side view of another embodiment of a modular panel, with the water-proof member provided as a section on each modular panel, having a second planar member and wherein the thermal break is a tube washer; and
- FIG. 6 is a sectional side view of yet another embodiment of a modular panel, with the water-proof member provided as a section on each modular panel, having a second planar member and wherein the thermal break is a bracket depending from the first planar member.
- FIGS. 1-3B A first preferred embodiment of the insulated modular roof system 10 of the present invention is shown in FIGS. 1-3B .
- the system 10 is comprised of a plurality of modular panels 20 (individually identified as 20 A- 20 G) and a water-proof member 28 .
- the water-proof member 28 may be provided in sections on each modular panel 20 (e.g. as shown in of FIGS. 3A, 3B and 5 ) or it may be provided separately and placed (or sprayed) over a plurality of adjacent panels 20 (e.g. the embodiment of FIG. 2C ).
- a plurality of modular panels 20 When installed on a building or roof structure (not shown), a plurality of modular panels 20 will preferably be placed, with their lateral edges 20 l in a generally overlapping arrangement OA similar to a tongue-and-groove joint, so as to substantially cover the desired surface area of the roof structure (not shown); e.g. see the arrangement of panels 20 A, 20 B and 20 C in FIG. 1 .
- FIG. 1 illustrates three modular panels 20 of a preferred embodiment of the system 10 , labelled individually as 20 A, 20 B and 20 C.
- Each modular panel 20 preferably comprises a first planar member 22 overlying an insulating layer 24 , the panel 20 having a plurality of lateral edges 20 l.
- a second planar member 26 is optionally provided to support the insulating layer 24 , the first planar member 22 and the water-proof member 28 when module 20 is placed on a roof structure; see the embodiment of FIG. 5 .
- first planar member 22 is a substantially rectangular planar member, having a length 22 l and a width 22 w.
- Insulating layer 24 preferably further comprises a first sublayer 24 a and a second sublayer 24 b portion. More preferably, the first and second sublayers 24 a, 24 b are also of a planar configuration each having a length 24 al, 24 bl and a width 24 aw, 24 bw of substantially the same dimensions as the length 22 l and a width 22 w of the first planar member 22 .
- first planar member 22 and the first sublayer 24 a are oriented or positioned within the panel 20 so that their lengths 22 l, 24 al and widths 22 w, 24 aw are substantially aligned, while the second sublayer 24 b is oriented or positioned in an offset manner within the panel 20 (as shown in FIGS. 1-3B ).
- first sublayer 24 a provides a step-like configuration at one lateral edge (e.g. 20 l ) comprising a lower edge of insulating materials 24 l
- second sublayer 24 b provides a reverse step-like configuration at the panel's opposing edge (e.g. 20 l ′) comprising a top edge of insulating material 24 t see FIG. 2B
- Top and lower edges of insulating material 24 t, 24 l cooperate together to create the overlapping arrangement OA, see FIGS. 2C .
- overlapping arrangement OA between adjacent modular panels 20 result in the system 10 having a monolithic type insulation formation from one modular panel (e.g. 20 A) to the next panel (e.g. 20 B).
- a water-proof member 28 portion is provided pre-assembled on each panel (see FIGS. 3A, 3B and 5 ).
- the modular panel 20 When installed on a building or roof structure, the modular panel 20 may be referred to as a roofing panel 20 , the first planar member 22 may be referred to a top planar member 22 and any second planar member 26 may be referred to as a bottom planar member 26 ; with the insulating layer 24 being generally sandwiched between the bottom and top planar members 22 , 24 .
- top and “bottom” are used herein as respective references to the orientation of the modular panel 20 on a substantially flat roofing structure, but there may be uses of the present disclosure where the modular panel 20 may be used in different orientations or on other parts of a building, such as in a substantially vertical orientation on the side of a building, used as siding.
- the term “up” and “down” may be used with respect to the ground. More specifically, the term “up” may be used to describe a vector that is normal to the ground and away from the ground. More specifically, the term “down” may be used to describe a vector that is normal to the ground and pointing toward the ground. A normal is a vector that is perpendicular to a surface such as the ground surface.
- normal may be defined as a constituent being at +/ ⁇ 90 degrees with respect to a plane.
- the insulating layer 24 may be placed or sprayed on the first planar member 22 (said member 22 then being a “bottom” planar member during the manufacturing process); the modular panel 20 subsequently flipped over, so that first planar member 22 generally overlays insulating layer 24 when placed on a roof structure 24 , then being a “top” planar panel.
- first and second planar members 22 , 26 may be rigid members constructed from oriented strand board (OSB), plywood, gypsum board, cement board or other suitably strong material typically used for sheathing in the roof construction industry.
- OSB oriented strand board
- first planar member 22 provides additional support and protection to the system 10 , as compared to U.S. Pat. No. 6,418,687 where a rubber membrane is simply applied over top of sprayed insulation.
- first planar member 22 is preferably made up 3 ⁇ 8 inch thick oriented strand board (OSB) sheets, measuring approximately 96 inches ⁇ 48 inches (8 feet ⁇ 4 feet) in length and width.
- OSB oriented strand board
- insulating layer 24 has a thickness of at least 2 inches, with top and lower edges 24 t, 24 l of insulating layer 24 cooperating together to create an overlapping arrangement OA between adjacent modular panels 20 .
- the overlapping arrangement OA of this embodiment provides for an overlap width OW of at least 2 inches.
- overlapping arrangement OA provides further insulating and vapour barrier features to the system 10 .
- Modular panels 20 may be fastened or mounted to a roof structure (not shown) via one or more fasteners 30 driven, mounted or screwed through first planar member 22 and insulating layer 24 (and any second planar member 26 ) at a desired position, e.g. as illustrated in FIGS. 1-3 .
- a thermal barrier or thermal break 35 is provided to reduce or prevent the flow of thermal energy from the roofing structure (not shown) through the modular panels 20 and out to the environment.
- the thermal break 35 is a polyamide tube washer having a flanged washer-like top 35 w and a tubular member 35 t depending therefrom.
- a suitable tube washer 35 is the HTK 50TM telescopic tube washer manufactured by EJOT UK Ltd of Leeds, United Kingdom.
- the tubular member 35 t is preferably inserted through appropriately sized and aligned openings 22 o, 24 o in the first planar member 22 and insulating layer 24 , with washer-like top 35 w overlaying the top of the first planar member 22 (see FIGS. 2B and 5 ).
- Fasteners 30 can inserted through washer-like top 35 w and then positioned through, and captured by, the tubular member 35 t to then engage the roofing structure (not shown); see FIGS. 2B and 5 .
- tube washer 35 and openings 22 o, 24 o may be filled with a spray foam (SF) to further reduce or prevent the flow of thermal energy from the roofing structure through the fastener 30 (see FIG. 5 ).
- SF spray foam
- FIG. 6 is similar to the embodiment of FIG. 5 , but in this embodiment the thermal break 35 comprises a bracket member 37 mounted to, and depending from, the first planar member 22 into the insulating layer 24 .
- Bracket member 37 is suitable to capture a screw- or bolt-like fastener, which may be inserted through appropriately sized and aligned openings 22 o, 24 o in the first planar member 22 and insulating layer 24 .
- bracket 37 and openings 22 o, 24 o Prior to placement of the water-proof member 28 over the first planar member 22 , bracket 37 and openings 22 o, 24 o may be filled with spray foam (SF) to further reduce or prevent the flow of thermal energy from the roofing structure through the fastener 30 .
- SF spray foam
- openings 22 o, 24 o and thermal break 35 provide ease of access to an installer to fasten modular panels 20 to a roof structure (i.e. access from the top of panel 20 ), while also reducing or preventing the flow of thermal energy from any underlying roof structures (as compared to simply driving a fastener through panel from the top).
- Fasteners 30 may be any suitable fastener, e.g. those types of fasteners used in the roofing industry to fasten sheathing to a roofing structure.
- fasteners 30 may be self-tapping metal screws.
- fasteners 30 are preferably the EJOT DaboTM screw model TKR-4.8TM also manufactured by EJOT UK Ltd of Leeds, United Kingdom.
- modular panels 20 may be mounted to the roofing structure using a glue or construction adhesive.
- the bulk of the insulating properties of the system 10 are derived from the insulating layer 24 of the modular panels 20 .
- the overlapping area OA significantly reduces onsite labour, e.g. as compared to cases where spray foam is applied onsite to the entire roofing surface, or along joints between adjacent panels. Any spray foam application of the present system 10 is optional and then only in any openings 22 o, 24 o and in the thermal breaks 35 .
- a roof or roofing structure may quickly be covered by a plurality of modular panels 20 arranged in overlapping configuration. More advantageously, by mounting the modular panels 20 to the roof structure via a tube washer 35 thermal bridge through the first planar member 22 , and by covering the thermal bridge openings 22 o, 24 o with spray foam SF, the amount of heat loss through the system 10 is minimized as compared to cases where a modular panel 20 is mounted to a roof structure via a fastener that penetrates the first planar member 22 , the insulating layer 24 and any second planar member 24 . Instead, in the embodiment of the present system 10 , any thermal bridging that might otherwise occur across fastener(s) 30 is significantly reduced or eliminated by having the fastener(s) 30 engage the first planar member 22 via the thermal breaks 35 .
- the insulating layer 24 is preferably a polyurethane foam insulation and, more preferably, is a closed cell foam.
- the insulating layer 24 may be comprised of a foamed synthetic resin made of polystyrene, polyethylene, acrylic resin, phenol resin, urea resin, epoxy resin, diallylphthalate resin, urethane resin and the like.
- the use of closed cell foam insulation in the insulating layer 24 along with the overlapping arrangements OA and an overlap width of at least 2 inches, provides an air/vapor/water barrier between the modular panel 20 and inherent in system 10 , so as to efficiently insulate roofs and roofing structures; especially once the panels 20 are fastened to the roofing structure.
- the resulting system 10 will then have a monolithic type insulation formation from one modular panel (e.g. 20 A) to the next panel (e.g. 20 B), providing an air tight system 10 and eliminating the need for an external vapor barrier.
- the invention thereby provides an insulated modular roofing system 10 that can be quickly installed on a roofing structure, with minimal on-site labour, with a desired slope S pre-manufactured in each modular panel 20 and with a continuous (inherent) vapour barrier across the modular panels 20 on the roofing structure.
- the invention may allow for the roofing of a building without the need for additional vapour control, such as separate polyethylene sheets that are typically used between a roof deck or roof structure and any overlying insulating material.
- the thickness of the insulating layer 24 may be determined by the insulation value that is desired to be achieved by the system 10 .
- a 3.33 inch thick insulating layer 24 comprised of 2-pound medium density, closed-cell polyurethane foam insulation, with the first and second planar member 22 , 26 comprising 3 ⁇ 8 inch thick OSB sheets will typically provide an insulating value of R-20 to the modular panel 20 and the system 10 .
- a 5.83 inch thick insulating layer 24 comprised of 2-pound polyurethane foam insulation, with the first and second planar member 22 , 26 comprising 3 ⁇ 8 inch thick OSB sheets will typically provide an insulating value of R-35.
- a closed-cell foam is resistant to water absorption.
- the insulating layer 24 may be sprayfoam-applied onto the first planar member 22 and then such spray foam insulating layer 24 may cut or shaped to the desired thickness and slope S. This may be accomplished using a horizontal band saw or a horizontal fastwire foam cutter.
- the CUTLASTM horizontal fastwire foam cutter is designed for slicing polyurethane foam into sheets of desired thickness and would be suitable for this application.
- a partially assembled modular panel 20 with a first planar member 22 measuring 4 feet ⁇ 8 feet may have the insulating layer 24 sprayfoamed thereon to a minimum thickness (e.g. of at least 3.5 inches).
- This partially assembled modular panel 20 can then be moved through a CUTLASTM horizontal fastwire foam cutter which is then set to cut off a thin top section of the spray foamed insulating layer 24 (e.g. to a height of 3.33 inches), thereby providing a smooth top surface, suitable to receive the second planar member.
- the CUTLASTM horizontal fastwire foam cutter can be adjusted to cut the insulating layer 24 at a pre-set slope, resulting in a modular panel 20 that has that desired slope S with the insulating layer 24 having a first thickness (or height) H 1 at one end of the panel 20 a and a second thickness (or height) H 2 at an opposing end 20 b of the panel (see the embodiment of FIG. 4 ).
- the water-proof member 28 on outside or top surface of the system 10 of modular panels 20 will be substantially smooth, thereby reducing or fully eliminating ponding or pooling of trapped water or other precipitation in localized areas. Furthermore, if a slight slope S has been provided by the modular panels 20 , then water or other precipitation will generally be directed to quickly run off of the outside or top surface of the system 10 .
- the water-proof membrane 28 is preferably an ethylene-propylene diene mar (EPDM) rubber membrane, but it may also be made of other suitable water-proof roofing material such as a membrane made from a variety of materials such as styrene-butadiene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, butadiene rubber, isoprene rubber, butyl rubber, ethylene-propylene rubber, polyisobutylene, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, chlorinated polyethylene, polyurea coating, ethylene-vinyl acetate copolymer, or SBS modified bitumen roofing membrane.
- EPDM ethylene-propylene diene mar
- the length and width dimensions of such section 28 s of the water-proof member 28 is preferably larger than the length and width of the first planar member 22 , so as to overlap with adjacent sections 28 s once any modular panels 20 are placed in an overlapping arrangement OA.
- such overlapping sections 28 s of water-proof member 28 can be taped and sealed (e.g. with seam tape and/or a solvent adhesive), after installation of the modular panels 20 , so as to provide an overall water-proof member 28 to the system 10 .
- an installer can apply 75 mm (3′′) wide EPDM seam tape to membrane 28 overlaps using a solvent adhesive.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Physics & Mathematics (AREA)
- Building Environments (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
Abstract
Description
- This invention relates to roofing systems, in particular insulated modular roofing systems.
- The background information discussed below is presented to better illustrate the novelty and usefulness of the present invention. This background information is not admitted prior art.
- Various roofing systems are known both for flat and sloped roofs to insulate and waterproof the roof. On flat roofs the most common roofing system for waterproofing is a built up laminar structure comprising a plurality of felt layers with each layer or series of layers over-laid with a hot bituminous (tar) composition to bind the felt to the roof. A layer of gravel tops off the structure. However, this is a very labour intensive process and requires onsite machines and equipment (e.g. to provide the hot tar).
- In recent years, as the advantages of applying insulation on the exterior as opposed to the interior of the roof deck have become known, the built up roof structure has been applied over insulation materials, typically sheets of insulation material. This created new problems as the insulating materials had poor mechanical properties, needed to be fastened to the roof deck, are subject to degradation by UV radiation and absorbed moisture. In addition such built up roof systems are very labour intensive making them less economical.
- Numerous attempts have been made unsuccessfully to solve one or more of these problems. For example, U.S. Pat. No. 6,418,687 is directed for retro-fitting roofs, is field applied and non-modular. In particular, the foamed in place insulation described in this patent is designed to be applied over a roof deck or existing roof substrate and a rubber membrane is then glued over top of the sprayed insulation. Although this addresses some of the problems, a foamed-in place roofing installation is still very labour intensive to apply and requires spray foaming equipment on-site. Furthermore, when one spray-foams a large surface area there are often ripples, localized hills and valleys and other imperfections that are formed and which translate into corresponding ripples, hills, valleys and imperfections in the overlying rubber membrane. These imperfects can then trap water or other precipitation in localized areas, preventing desired run-off, and ultimately resulting in ponding and of such standing water seeping through cracks in the rubber membrane.
- Additionally, even on roofs that are classified as being “flat” it may desirable to have a slight roof slope for water to run off. A typical minimum roof slope is 1% (⅛″ per 1′). However, minimum slope for a “flat” roof is often set by building code to 2%. However, even for an experienced and skilled spray-foam application worker, it is difficult to create a flat non-ponding surface using an on-site, foamed-in place insulation method. Moreover, it is very difficult, if not impossible, to create a slightly sloped roofing surface (from one side of the roof to another) using such an on-site, foamed-in place insulation method; especially in new construction wherein there is no pre-existing, pre-sloped roof deck. In such cases, the system and method of U.S. Pat. No. 6,418,687 will simply not work.
- Therefore, what is needed is a modular roofing system which can be applied in new buildings, reduces on-site installation time, does not require a pre-existing, pre-sloped roof deck, does not require (or reduces the need for) on-site spay-foaming equipment, can be installed by unskilled laborers and can provide for an overall slope to the resulting roof structure.
- In one aspect there is provided an insulated modular roof system for a roof structure. The system comprises a plurality of modular panels suitable for installation onto the roof structure and a water-proof membrane. In this aspect, each of the modular panels comprises a first planar member, an insulating layer covering substantially all of the first planar member and a plurality of lateral edges. Each of the plurality of lateral edges provides either a step-like configuration or a reverse step-like configuration. When installed on the roof structure, the plurality of modular panels are positionable so as to place the plurality of lateral edges of any two adjacent modular panels in a generally overlapping arrangement.
- Referring to the drawings, several aspects of the present invention are illustrated by way of example, and not by way of limitation, in detail in the figures, wherein:
-
FIG. 1 is a perspective, partial cut-away view of most of the components of a first embodiment of the insulated modular roof system; -
FIG. 2A is a perspective side view of most of the components of the embodiment of the insulated modular roof system ofFIG. 1 ; -
FIG. 2B is a sectional side view of a modular panel of the embodiment of the insulated modular roof system ofFIG. 1 ; -
FIG. 2C is a sectional side view of the modular insulated roof system of the embodiment ofFIG. 1 , illustrating the overlapping area and overlap width; -
FIGS. 3A and 3B are partially exploded and partially cut-away perspective views of a modular panel of another embodiment of the insulated modular roof system ofFIG. 1 , with the water-proof member provided in sections on each modular panel; -
FIG. 4 is a perspective view of most of the components of another embodiment of the insulated modular roof system, illustrating a slight slope to the overall roof system; -
FIG. 5 is a sectional side view of another embodiment of a modular panel, with the water-proof member provided as a section on each modular panel, having a second planar member and wherein the thermal break is a tube washer; and -
FIG. 6 is a sectional side view of yet another embodiment of a modular panel, with the water-proof member provided as a section on each modular panel, having a second planar member and wherein the thermal break is a bracket depending from the first planar member. - The following description is of preferred embodiments by way of example only and without limitation to the combination of features necessary for carrying the invention into effect. Reference is to be had to the Figures in which identical reference numbers identify similar components. The drawing figures are not necessarily to scale and certain features are shown in schematic or diagrammatic form in the interest of clarity and conciseness.
- A first preferred embodiment of the insulated
modular roof system 10 of the present invention is shown inFIGS. 1-3B . Thesystem 10 is comprised of a plurality of modular panels 20 (individually identified as 20A-20G) and a water-proof member 28. The water-proof member 28 may be provided in sections on each modular panel 20 (e.g. as shown in ofFIGS. 3A, 3B and 5 ) or it may be provided separately and placed (or sprayed) over a plurality of adjacent panels 20 (e.g. the embodiment ofFIG. 2C ). When installed on a building or roof structure (not shown), a plurality ofmodular panels 20 will preferably be placed, with their lateral edges 20 l in a generally overlapping arrangement OA similar to a tongue-and-groove joint, so as to substantially cover the desired surface area of the roof structure (not shown); e.g. see the arrangement of panels 20A, 20B and 20C inFIG. 1 . -
FIG. 1 illustrates threemodular panels 20 of a preferred embodiment of thesystem 10, labelled individually as 20A, 20B and 20C. Eachmodular panel 20 preferably comprises a firstplanar member 22 overlying aninsulating layer 24, thepanel 20 having a plurality of lateral edges 20 l. A secondplanar member 26 is optionally provided to support theinsulating layer 24, the firstplanar member 22 and the water-proof member 28 whenmodule 20 is placed on a roof structure; see the embodiment ofFIG. 5 . - In the embodiment of
FIG. 1 , firstplanar member 22 is a substantially rectangular planar member, having a length 22 l and a width 22 w.Insulating layer 24 preferably further comprises a first sublayer 24 a and asecond sublayer 24 b portion. More preferably, the first andsecond sublayers 24 a, 24 b are also of a planar configuration each having alength 24 al, 24 bl and awidth 24 aw, 24 bw of substantially the same dimensions as the length 22 l and a width 22 w of the firstplanar member 22. Even more preferably, the firstplanar member 22 and the first sublayer 24 a are oriented or positioned within thepanel 20 so that theirlengths 22 l, 24 al andwidths 22 w, 24 aw are substantially aligned, while thesecond sublayer 24 b is oriented or positioned in an offset manner within the panel 20 (as shown inFIGS. 1-3B ). - Accordingly, this arrangement of the first
planar member 22, the first sublayer 24 a and thesecond sublayer 24 b provides for adjacentmodular panels 20 to be positioned with their lateral edges 20 l in a generally overlapping arrangement OA. In particular, first sublayer 24 a provides a step-like configuration at one lateral edge (e.g. 20 l) comprising a lower edge of insulating materials 24 l, whilesecond sublayer 24 b provides a reverse step-like configuration at the panel's opposing edge (e.g. 20 l′) comprising a top edge of insulatingmaterial 24 t seeFIG. 2B . Top and lower edges of insulatingmaterial 24 t, 24 l cooperate together to create the overlapping arrangement OA, seeFIGS. 2C . Advantageously, overlapping arrangement OA between adjacentmodular panels 20 result in thesystem 10 having a monolithic type insulation formation from one modular panel (e.g. 20A) to the next panel (e.g. 20B). - As mentioned, in some embodiments of the invention a water-
proof member 28 portion is provided pre-assembled on each panel (seeFIGS. 3A, 3B and 5 ). When installed on a building or roof structure, themodular panel 20 may be referred to as aroofing panel 20, the firstplanar member 22 may be referred to a topplanar member 22 and any secondplanar member 26 may be referred to as a bottomplanar member 26; with the insulatinglayer 24 being generally sandwiched between the bottom and topplanar members - The use of “roofing”, “top,” and “bottom” are used herein as respective references to the orientation of the
modular panel 20 on a substantially flat roofing structure, but there may be uses of the present disclosure where themodular panel 20 may be used in different orientations or on other parts of a building, such as in a substantially vertical orientation on the side of a building, used as siding. The term “up” and “down” may be used with respect to the ground. More specifically, the term “up” may be used to describe a vector that is normal to the ground and away from the ground. More specifically, the term “down” may be used to describe a vector that is normal to the ground and pointing toward the ground. A normal is a vector that is perpendicular to a surface such as the ground surface. In one embodiment, normal may be defined as a constituent being at +/−90 degrees with respect to a plane. During manufacturing of themodular panel 20, however, the insulatinglayer 24 may be placed or sprayed on the first planar member 22 (saidmember 22 then being a “bottom” planar member during the manufacturing process); themodular panel 20 subsequently flipped over, so that firstplanar member 22 generally overlays insulatinglayer 24 when placed on aroof structure 24, then being a “top” planar panel. - The first and second
planar members planar member 22 provides additional support and protection to thesystem 10, as compared to U.S. Pat. No. 6,418,687 where a rubber membrane is simply applied over top of sprayed insulation. - In one embodiment of the insulated
modular roof system 10, firstplanar member 22 is preferably made up ⅜ inch thick oriented strand board (OSB) sheets, measuring approximately 96 inches×48 inches (8 feet×4 feet) in length and width. Preferably, insulatinglayer 24 has a thickness of at least 2 inches, with top andlower edges 24 t, 24 l of insulatinglayer 24 cooperating together to create an overlapping arrangement OA between adjacentmodular panels 20. More preferably, the overlapping arrangement OA of this embodiment provides for an overlap width OW of at least 2 inches. Advantageously, overlapping arrangement OA provides further insulating and vapour barrier features to thesystem 10. -
Modular panels 20 may be fastened or mounted to a roof structure (not shown) via one ormore fasteners 30 driven, mounted or screwed through firstplanar member 22 and insulating layer 24 (and any second planar member 26) at a desired position, e.g. as illustrated inFIGS. 1-3 . Preferably, a thermal barrier orthermal break 35 is provided to reduce or prevent the flow of thermal energy from the roofing structure (not shown) through themodular panels 20 and out to the environment. - In the embodiments of
FIGS. 1-5 , thethermal break 35 is a polyamide tube washer having a flanged washer-like top 35 w and a tubular member 35 t depending therefrom. Asuitable tube washer 35 is the HTK 50™ telescopic tube washer manufactured by EJOT UK Ltd of Leeds, United Kingdom. The tubular member 35 t is preferably inserted through appropriately sized and aligned openings 22 o, 24 o in the firstplanar member 22 and insulatinglayer 24, with washer-like top 35 w overlaying the top of the first planar member 22 (seeFIGS. 2B and 5 ).Fasteners 30 can inserted through washer-like top 35 w and then positioned through, and captured by, the tubular member 35 t to then engage the roofing structure (not shown); seeFIGS. 2B and 5 . Prior to placement of the water-proof member 28 over the firstplanar member 22,tube washer 35 and openings 22 o, 24 o may be filled with a spray foam (SF) to further reduce or prevent the flow of thermal energy from the roofing structure through the fastener 30 (seeFIG. 5 ). - The embodiment of
FIG. 6 is similar to the embodiment ofFIG. 5 , but in this embodiment thethermal break 35 comprises abracket member 37 mounted to, and depending from, the firstplanar member 22 into the insulatinglayer 24.Bracket member 37 is suitable to capture a screw- or bolt-like fastener, which may be inserted through appropriately sized and aligned openings 22 o, 24 o in the firstplanar member 22 and insulatinglayer 24. Prior to placement of the water-proof member 28 over the firstplanar member 22,bracket 37 and openings 22 o, 24 o may be filled with spray foam (SF) to further reduce or prevent the flow of thermal energy from the roofing structure through thefastener 30. - Advantageously said openings 22 o, 24 o and
thermal break 35 provide ease of access to an installer to fastenmodular panels 20 to a roof structure (i.e. access from the top of panel 20), while also reducing or preventing the flow of thermal energy from any underlying roof structures (as compared to simply driving a fastener through panel from the top).Fasteners 30 may be any suitable fastener, e.g. those types of fasteners used in the roofing industry to fasten sheathing to a roofing structure. For example,fasteners 30 may be self-tapping metal screws. Or if using HTK 50™ telescopic tube washers, thenfasteners 30 are preferably the EJOT Dabo™ screw model TKR-4.8™ also manufactured by EJOT UK Ltd of Leeds, United Kingdom. Alternatively,modular panels 20 may be mounted to the roofing structure using a glue or construction adhesive. - As is now understood, the bulk of the insulating properties of the
system 10 are derived from the insulatinglayer 24 of themodular panels 20. Advantageously, the overlapping area OA significantly reduces onsite labour, e.g. as compared to cases where spray foam is applied onsite to the entire roofing surface, or along joints between adjacent panels. Any spray foam application of thepresent system 10 is optional and then only in any openings 22 o, 24 o and in thethermal breaks 35. - Advantageously, a roof or roofing structure may quickly be covered by a plurality of
modular panels 20 arranged in overlapping configuration. More advantageously, by mounting themodular panels 20 to the roof structure via atube washer 35 thermal bridge through the firstplanar member 22, and by covering the thermal bridge openings 22 o, 24 o with spray foam SF, the amount of heat loss through thesystem 10 is minimized as compared to cases where amodular panel 20 is mounted to a roof structure via a fastener that penetrates the firstplanar member 22, the insulatinglayer 24 and any secondplanar member 24. Instead, in the embodiment of thepresent system 10, any thermal bridging that might otherwise occur across fastener(s) 30 is significantly reduced or eliminated by having the fastener(s) 30 engage the firstplanar member 22 via thethermal breaks 35. - The insulating
layer 24 is preferably a polyurethane foam insulation and, more preferably, is a closed cell foam. In other embodiments, the insulatinglayer 24 may be comprised of a foamed synthetic resin made of polystyrene, polyethylene, acrylic resin, phenol resin, urea resin, epoxy resin, diallylphthalate resin, urethane resin and the like. - Advantageously, the use of closed cell foam insulation in the insulating
layer 24, along with the overlapping arrangements OA and an overlap width of at least 2 inches, provides an air/vapor/water barrier between themodular panel 20 and inherent insystem 10, so as to efficiently insulate roofs and roofing structures; especially once thepanels 20 are fastened to the roofing structure. More advantageously, the resultingsystem 10 will then have a monolithic type insulation formation from one modular panel (e.g. 20A) to the next panel (e.g. 20B), providing an airtight system 10 and eliminating the need for an external vapor barrier. - The invention thereby provides an insulated
modular roofing system 10 that can be quickly installed on a roofing structure, with minimal on-site labour, with a desired slope S pre-manufactured in eachmodular panel 20 and with a continuous (inherent) vapour barrier across themodular panels 20 on the roofing structure. Advantageously, the invention may allow for the roofing of a building without the need for additional vapour control, such as separate polyethylene sheets that are typically used between a roof deck or roof structure and any overlying insulating material. - The thickness of the insulating
layer 24 may be determined by the insulation value that is desired to be achieved by thesystem 10. For example, a 3.33 inch thick insulatinglayer 24 comprised of 2-pound medium density, closed-cell polyurethane foam insulation, with the first and secondplanar member modular panel 20 and thesystem 10. A 5.83 inch thick insulatinglayer 24 comprised of 2-pound polyurethane foam insulation, with the first and secondplanar member - During manufacture of the
modular panel 20, the insulatinglayer 24 may be sprayfoam-applied onto the firstplanar member 22 and then such sprayfoam insulating layer 24 may cut or shaped to the desired thickness and slope S. This may be accomplished using a horizontal band saw or a horizontal fastwire foam cutter. The CUTLAS™ horizontal fastwire foam cutter is designed for slicing polyurethane foam into sheets of desired thickness and would be suitable for this application. - For example, a partially assembled
modular panel 20, with a firstplanar member 22 measuring 4 feet×8 feet may have the insulatinglayer 24 sprayfoamed thereon to a minimum thickness (e.g. of at least 3.5 inches). This partially assembledmodular panel 20 can then be moved through a CUTLAS™ horizontal fastwire foam cutter which is then set to cut off a thin top section of the spray foamed insulating layer 24 (e.g. to a height of 3.33 inches), thereby providing a smooth top surface, suitable to receive the second planar member. Alternatively, where a roof slope is desired, the CUTLAS™ horizontal fastwire foam cutter can be adjusted to cut the insulatinglayer 24 at a pre-set slope, resulting in amodular panel 20 that has that desired slope S with the insulatinglayer 24 having a first thickness (or height) H1 at one end of the panel 20 a and a second thickness (or height) H2 at an opposing end 20 b of the panel (see the embodiment ofFIG. 4 ). - Advantageously, by having a smoothly cut insulating
layer 24, and by utilizing the firstplanar member 22, the water-proof member 28 on outside or top surface of thesystem 10 ofmodular panels 20 will be substantially smooth, thereby reducing or fully eliminating ponding or pooling of trapped water or other precipitation in localized areas. Furthermore, if a slight slope S has been provided by themodular panels 20, then water or other precipitation will generally be directed to quickly run off of the outside or top surface of thesystem 10. - The water-
proof membrane 28 is preferably an ethylene-propylene diene mar (EPDM) rubber membrane, but it may also be made of other suitable water-proof roofing material such as a membrane made from a variety of materials such as styrene-butadiene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, butadiene rubber, isoprene rubber, butyl rubber, ethylene-propylene rubber, polyisobutylene, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, chlorinated polyethylene, polyurea coating, ethylene-vinyl acetate copolymer, or SBS modified bitumen roofing membrane. - In the embodiments where the water-
proof membrane 28 is provided in sections on each modular panel 20 (e.g.FIGS. 3A, 3B and 5 ), the length and width dimensions ofsuch section 28 s of the water-proof member 28 is preferably larger than the length and width of the firstplanar member 22, so as to overlap withadjacent sections 28 s once anymodular panels 20 are placed in an overlapping arrangement OA. Advantageously, such overlappingsections 28 s of water-proof member 28 can be taped and sealed (e.g. with seam tape and/or a solvent adhesive), after installation of themodular panels 20, so as to provide an overall water-proof member 28 to thesystem 10. For example, an installer can apply 75 mm (3″) wide EPDM seam tape tomembrane 28 overlaps using a solvent adhesive. - Those of ordinary skill in the art will appreciate that various modifications to the invention as described herein will be possible without falling outside the scope of the invention. In the claims, the word “comprising” is used in its inclusive sense and does not exclude other elements being present. The indefinite article “a” before a claim feature does not exclude more than one of the features being present.
Claims (16)
Applications Claiming Priority (2)
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CA2902606A CA2902606A1 (en) | 2015-09-01 | 2015-09-01 | Insulated modular roof system |
CA2902606 | 2015-09-01 |
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US20170058523A1 true US20170058523A1 (en) | 2017-03-02 |
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US15/253,858 Abandoned US20170058523A1 (en) | 2015-09-01 | 2016-08-31 | Insulated modular roof system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190242134A1 (en) * | 2018-02-04 | 2019-08-08 | Loadmaster Systems, Inc. | Stabilized horizontal roof deck assemblies |
CN111155636A (en) * | 2018-11-08 | 2020-05-15 | 新一代产品公司 | Building assembly |
US20210180326A1 (en) * | 2019-12-17 | 2021-06-17 | Pre-Insulated Metal Technologies, Inc. | Deck Panel And Fastening System |
US11566426B2 (en) | 2019-11-26 | 2023-01-31 | Bmic Llc | Roofing panels with water shedding features |
US11608640B2 (en) | 2021-05-25 | 2023-03-21 | Bmic Llc | Panelized roofing system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111021638A (en) * | 2019-05-20 | 2020-04-17 | 安徽省中功立业建设工程有限责任公司 | Anti-seepage method for constructional engineering |
-
2015
- 2015-09-01 CA CA2902606A patent/CA2902606A1/en not_active Abandoned
-
2016
- 2016-08-31 US US15/253,858 patent/US20170058523A1/en not_active Abandoned
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190242134A1 (en) * | 2018-02-04 | 2019-08-08 | Loadmaster Systems, Inc. | Stabilized horizontal roof deck assemblies |
US10865568B2 (en) * | 2018-02-04 | 2020-12-15 | Loadmaster Systems, Inc. | Stabilized horizontal roof deck assemblies |
CN111155636A (en) * | 2018-11-08 | 2020-05-15 | 新一代产品公司 | Building assembly |
US10889984B2 (en) * | 2018-11-08 | 2021-01-12 | Newage Products Inc. | Building assembly |
US11566426B2 (en) | 2019-11-26 | 2023-01-31 | Bmic Llc | Roofing panels with water shedding features |
US20210180326A1 (en) * | 2019-12-17 | 2021-06-17 | Pre-Insulated Metal Technologies, Inc. | Deck Panel And Fastening System |
US11299889B2 (en) * | 2019-12-17 | 2022-04-12 | Pre-Insulated Metal Technologies, Inc. | Deck panel and fastening system |
US11608640B2 (en) | 2021-05-25 | 2023-03-21 | Bmic Llc | Panelized roofing system |
US11927019B2 (en) | 2021-05-25 | 2024-03-12 | Bmic Llc | Panelized roofing system |
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