Building Insulation Sheathing Systems and Methods of Use Thereof
The present invention relates to a building insulation sheathing system that provides for efficient installation of insulation, material and labor reduction during installation, as well as provides a stable structure for ease in attachment of protective and/or decorative cladding to a building. The present invention further includes a method for insulating a building using the sheathing system of the present invention.
This application claims priority to U.S. Provisional Application Ser. No. 61/274,202, filed on Aug. 13, 2009. The contents of the previously mentioned provisional application is incorporated by reference herein.
FIELD OF THE INVENTIONThe present invention relates to a building insulation sheathing system that provides for efficient installation of insulation, material and labor reduction during installation, as well as provides a stable structure for ease in attachment of protective and/or decorative cladding to a building. The present invention further includes a method for insulating a building using the sheathing system of the present invention.
BACKGROUND OF THE INVENTIONThe insulation of buildings, whether residential or commercial, is an incredibly important part of the structure and when installed properly, ensures energy and financial efficiency for the life of the building. Unfortunately, insulation systems in the market today have a number of shortfalls including, but not limited to, energy inefficiency, complicated installation processes, increased dew point within exterior walls thereby supporting the growth of mold, noncontiguous insulation thereby providing outlets for heat and cooling loss, and design deficiencies that inhibit incorporation into existing structures.
There are a number of insulation systems that are commonly used in building. For example, insulation systems such as fiberglass insulation, spray foam, structurally insulated panels (“SIPs”) and ICF are common insulation systems used in the building industry. Unfortunately, there are many disadvantages in using such systems. The following paragraphs discuss a few of the insulation systems commonly used in the building industry and outlines a few of their disadvantages.
Fiberglass insulation is commonly used in most homes built today, due to its low costs & easy application. Fiberglass insulation generally includes a fluffy fiberglass material adhered to a moisture barrier backing A common fiberglass insulation is the insulation produced and sold by Owens-Corning® that is predominantly identified by its pink color. Unfortunately, fiberglass insulation has some disadvantages including the following:
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- It performs way below its marketed R-Values.
- Has problems with mold and mildew.
- It does not stop any thermo-bridging. (wood members)
- It only works for some applications. (rims)
- Requires a vapor barrier.
- Requires a weather barrier.
- Its cavity filled insulation.
- Does not control the convection looping process.
- The dew point is in your stud cavity.
- The stud space can not be used for mechanical without affecting the performance of the wall.
Another common insulation system used in building today is spray foam. Spray foam insulation is normally a polyurethane foam pumped into the home to insulate walls (e.g. between the studs), ceilings and everywhere else one would expect insulation. As a result, it helps to keep the heat inside during the cold months and the hot air outside when it's warm. Although originally the work of professionals only, do-it-yourself spray foam insulation kits are available. Spray foam has the benefit of installation ease in that it can be sprayed onto almost any existing structure as long as there is sufficient structure to hold it in position. However, spray foam has a number of disadvantages including the following:
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- The cost is about 3.5 times higher than fiberglass.
- It does not control thermo-bridging. (wood members)
- Requires a weather barrier.
- Its cavity filled insulation.
- The dew point is in your stud cavity.
- The stud space can not be used for mechanical without affecting the performance of the wall.
Still another insulation system are structurally insulated panels (“SIPs”). SIPs are high performance building panels used in floors, walls, and roofs for residential and light commercial buildings. The panels are typically made by sandwiching a core of rigid foam plastic insulation between two structural skins of oriented strand board (OSB). Other skin material can be used for specific purposes. SIPs are manufactured under factory controlled conditions and can be custom designed for each home. SIPs also have a number of disadvantages including the following:
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- It is a panelized wall system. (non-conventional build)
- Costs are high.
- Has solid wood members around all seams. (thermo-bridging)
- The seams are caulked to reduce air flow. (maintenance)
Finally, insulating concrete forms (“ICF's”) have become an insulation system that is being used in construction of commercial and residential buildings. ICFs are hollow “blocks” or “panels” made of expanded polystyrene insulation (EPS) or other insulating foam that construction crews stack to form the shape of the walls of a building. The workers then fill the center with reinforced concrete to create the structure. There are over 20 brands of ICFs in North America, each providing variations in design and materials. ICFs have a number of disadvantages including the following:
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- Costs are high.
- It is not yet considered a conventional build.
- Mold problems.
The construction industry and home improvement product manufacturers still have found difficulties in remedying the problems identified above in a single system. The industry still searches for an insulation system that is easily installable, reduces waste materials, is reasonably priced, reduces the problems of water penetration and mold and provides a simple and stable structure for securing a protective and aesthetically pleasing exterior cladding.
SUMMARY OF THE INVENTIONEmbodiments of the present invention relate to a building insulation sheathing system that provides for efficient installation of insulation, material and labor reduction during installation, as well as provides a stable structure for ease in attachment of protective and/or decorative cladding to a building. The present invention further includes a method for insulating a building using the sheathing system of the present invention.
The building insulation sheathing system generally includes one or more insulation panel(s) comprising one or more insulating materials. Each panel includes an exterior surface and an interior surface. The sheathing system further includes one or more batten(s) that are adjoined to the exterior surface of the panel(s) with one or securing fastener(s). The sheathing system also includes one or more securing fasteners used to secure the panels to the frame of a building, such as the studs, plywood or foundation walls and for securing the batten(s) to the panel(s). In various embodiments of the present invention, the panels include foam boards, the battens are made from wood and the fasteners, are screws, nails, rivets or adhesives.
The present invention also includes a method of insulating and cladding a building with a building insulation sheathing system. This method comprises providing a building that has an exposed and prepared frame for receiving an insulation system and cladding to the exterior of the frame. Next, one or more panel(s) are positioned on the exterior surface of the frame of the building (e.g. the exterior surfaces of the studs or plywood panels.) Once the panel(s) are positioned, one or more battens are positioned on the exterior surface of the panel(s). Next, the panel(s) are secured to the frame and the batten(s) to the panel(s) with one or more fasteners. Once secured, trimming excess portions of the panels to square corners and open portal apertures is performed. Finally, cladding may be attached to the sheathing system of the present invention by attachment of the cladding to the batten(s) or by applying the cladding to the entire exterior surface of the sheathing system. Additionally, an installer may seal any seams formed between the panels with a sealing material, such as insulation foam, caulk, tapes or adhesives.
The embodiments of the present invention described below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art can appreciate and understand the principles and practices of the present invention.
The insulation panels used in the sheathing system of the present invention are normally made from an insulating material and are shaped so that they are easily adjoined to the frame and/or studs of a building and can be attached so as to provide substantially complete coverage of the exterior of walls, floors, ceiling and roof of a building. In various embodiments foam boards may be used for insulation panels in the sheathing systems of the present invention. Foam boards are rigid panels of insulation that can be used to insulate almost any part of a building, from the roof down to the foundation walls. Foam boards provide good thermal resistance and often add structural strength to the building. Furthermore, foam board insulation sheathing reduces heat conduction through structural elements, like wood and steel studs.
The most common types of materials used in making panels, such as foam board, include polystyrene, polyisocyanurate or polyiso, and polyurethane. However, other suitable insulation materials for may be used in producing the panels of the present invention.
In various embodiment of the present invention, molded expanded polystyrene (MEPS) may be used to form the panels. MEPS is a closed-cell material that can be molded into many everyday items, such as coffee cups and shipping materials, or into large sheets of foam board insulation. MEPS foam board insulation is commonly known as beadboard. To make beadboard, loose, unexpanded polystyrene beads containing liquid pentane are mixed with a blowing agent and poured into an enclosed container. The mixture is heated to expand the beads many times their original size. The beads are then injected into a mold. Under more heat and pressure, they expand to become foam blocks, which are shaped as needed.
The physical properties of MEPS foam board vary with the type of bead used. It's manufactured at various densities, depending on the application. Beadboard for roofing materials generally is dense enough to walk on without damage; wall insulation foam boards are normally several times less dense than roof boards. R-values range from 3.8 to 4.4 per inch (2.54 cm) of thickness.
In other embodiments of the present invention, the panels may be formed using an extruded expanded polystyrene (XEPS) foam insulation. XEPS is similar to MEPS, but has a number of differences. To make XEPS, the polystyrene pellets are mixed with various chemicals to liquefy them. A blowing agent is then injected into the mixture, forming gas bubbles. The foaming, thick liquid is then forced through a shaping die. When cooled, the panel is cut as required. Foam densities are typically 1.5 pounds per cubic foot (24 kilograms per cubic meter).
XEPS is normally more expensive than MEPS. However, like MEPS, the R-value depends upon the density of the material and is generally about R-5 per inch. XEPS is also much more consistent in density and has a higher compressive strength than MEPS, making it better suited for use on roofs or for wall panels. Extruded polystyrene also has excellent resistance to moisture absorption.
Polyisocyanurate or polyiso and polyurethane are very similar, closed-cell foam insulation materials that may be used to produce the panels of the present invention. Because both materials generally offer high R-values (R 5.6 to R 8) per inch of thickness, an installer can use a thinner foam board to achieve the required thermal resistance. This can be an advantage if you have space limitations.
Polyiso foam board insulation is available in a variety of compressive strengths. Compressive strength refers to the ability of a rigid foam board to resist deformation and maintain its shape when subjected to a force or load. Also, polyiso remains stable over a wide temperature range (−100° F. to +250° F.). This makes it particularly good as roofing insulation. And when used with a laminated aluminum foil facing, polyiso foam board provides an effective moisture or vapor barrier.
The panels of the present invention may be of any shape and size that is beneficial to provide substantially complete coverage of walls or ceiling that are to be insulated. In various embodiments of the present invention, the panels may have the following dimensions: Height—1′ to 24′, Length—2′ to 24′; and Width 1″ to 24″. In other embodiments the dimensions may be Height—2′ to 12′, Length—3′ to 16′; and Width 2″ to 18″. In yet other embodiments the dimensions of the panels may be Height—3′ to 6′, Length—4′ to 12′; and Width 4″ to 12″. The shape may be any shape that can provide best wall or ceiling coverage, such as rectangular or square.
The building insulation sheathing system of the present invention also includes one or more battens. A batten is a thin strip of solid material, typically made from wood, plastic or metal. Battens are used in building construction and various other fields, as both structural and purely cosmetic elements. In the steel industry, battens may also be referred to as “top hats”, in reference to the profile of the metal. Any type of wood, plastic or metal may be used to produce the battens of the present invention. For example, wood materials may include pine, cedar, ash, oak, or any other type of suitable wood material; plastics may include, polyethylene, polypropylene, polycarbonate or any other type of suitable plastic; and metals may include, steel, aluminum or any other type of suitable metal.
The battens of the present invention may be of any shape and size that is beneficial to provide substantially complete coverage of walls or ceiling that are to be insulated. In various embodiments of the present invention, the battens may have the following dimensions: Height—1″ to 12″, Length—2′ to 24′; and Width ⅛″ to 2″. In other embodiments the dimensions may be Height—2″ to 8″, Length—3′ to 18′; and Width ¼″ to 1 ½″. In yet other embodiments the dimensions of the panels may be Height—3″ to 6″, Length—4′ to 12′; and Width ⅜″ to ¾″. The shape may be any shape that can provide best wall or ceiling coverage, such as rectangular or square.
Battens are used in the sheathing system of the present invention in various ways. For example, the battens used in embodiments of the present invention are generally provided to provide a platform for securing the panels to the frame and/or studs of the building. However, the battens may also be used to secure and/or adjoin adjacent panels. Furthermore, the battens function may be used to allow for the attachment of protective and decorative cladding to the battens thereby covering the sheathing system and interior frame of the building.
The building insulation sheathing system of the present invention also includes one or more fasteners for adjoining the battens to the panels and the adjoined battens/panels to the frame and/or studs of the building. Fasteners that may be used with various embodiments of the present invention include screws, nails, rivets, adhesives (e.g. glues, sealants, tapes . . . ) or any other type of securing device. In various embodiments of the present invention screws provide a good means to secure the battens and panels to the frame and/or studs of the building. Screws are generally easy to administer and provide a good mechanical connection between the battens, panels and frame/studs. Screws also allow for the components (e.g. panels, battens, screws) of the sheathing system to be easily removed and reclaimed.
The following discussion addresses the Figures, which illustrate various embodiments of the components and sheathing system of the present invention.
The panel 12 of this embodiment is a rectangular sheet that includes one or more beveled edges 20 as illustrated in
In cold weather, warm inside air containing water vapor can get past the wall finish and insulation, condensing inside the colder wall cavity. In hot, humid climates the same thing can happen, just in the reverse direction. Humid outdoor air in the summer can condense inside cool, air conditioned wall cavities. If enough of this happens and the water cannot escape, wood rot, mold, and other moisture-related problems can occur. The sheathing system of the present invention assists in preventing the problems associated with moisture as found in other insulation systems. First the sheathing system of the present invention is positioned exterior to the frame/studs of the building. Such a positioning does not allow for the trapping of moisture between the cavities of the studs and thereby avoids the problems associated with moisture within the frame or studs. Next the orientation of the beveled edges allows for moisture to move away from the frame/studs of the building, thereby avoiding a buildup of moisture within the walls of the building.
It is noted that the building insulation sheathing systems 10 of the present invention may also be used to insulate ceilings and roofs.
Additionally, the building insulation sheathing system 10 of the present invention are easy to use in buildings that include windows, doors and other portal type entries into the building.
In some embodiments of the present invention, as depicted in
Once the panels 12 and battens 14 are secured to the frame/studs 24 and/or foundation wall 44 with fasteners 16, the excess portions (not shown) of panels 12 and battens 14 are trimmed to square corners and open window, door and other portal apertures. It is noted that in many embodiments, the seams 23 between panels 12 are filled with a thermal sealing material, such as insulation foam (e.g. spray foam), caulking, adhesive or tape, to form a substantially continuous thermal seal throughout the system. The sealing material may be administered from the exterior side or interior side of the panels. For example, in remodel applications the sealing material may have to be administered from the front/exterior side of the panel. The creation of such a seal maintains the R-value of the insulation system and limits any moisture that may accumulate in the system or migrate into the frame of the building. The completion of trimming and seam filling next allows for the installation of portal devices 50, such as windows or doors as illustrated in
The building may also include a waterproof barrier material 52 (e.g. waterproof panel or film) applied to the battens 14 and over the panels 12 that are secured to the foundation wall 44 or concrete footing to provide a moisture barrier between the building foundation wall and the aggregate/fill material 54 surrounding the underground portion of the building 46. Such a barrier protects the system and foundation wall from moisture, but also protects the insulation panels from insect and rodent infestation.
While the invention has been illustrated and described in detail in the drawings and foregoing description, such an illustration and description is to be considered as exemplary and not restrictive in character, it being understood that only embodiments of the systems and methods of the present invention have been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected.
Claims
1. A building insulation sheathing system comprising:
- one or more insulation panel(s) comprising one or more insulating materials, the panel(s) having an exterior surface and an interior surface;
- one or more batten(s) adjoined to the exterior surface of the panel(s); and
- one or more securing fastener(s) for securing the panels to a frame, studs or foundation walls of a building structure and for securing the batten(s) to the panel(s).
2. The building insulation sheathing system of claim 1, wherein the panel(s) are foamed insulation panels.
3. The building insulation sheathing system of claim 1, wherein the foamed insulation panel(s) are made from insulating materials selected from the group consisting of polystyrene, polyisocyanurate, and polyurethane.
4. The building insulation sheathing system of claim 2 wherein the foamed panel(s) are made from molded expanded polystyrene (MEPS) foam boards or extruded expanded polystyrene (XEPS) foam boards.
5. The building insulation sheathing system of claim 1, wherein the batten(s) are produced from materials selected from the group consisting of wood, plastic and metal.
6. The building insulation sheathing system of claim 1, wherein the panel(s) include one or more grooves for positioning the batten(s).
7. The building insulation sheathing system of claim 1, wherein the fastener(s) are selected from the group consisting of screws, nails, rivets and adhesives.
8. The building insulation sheathing system of claim 1, wherein the panels include one or more beveled edges.
9. The building insulation sheathing system of claim 8 wherein the two or more beveled edges are configured to interact with each other so as to direct moisture away from a building structure
10. The building insulation sheathing system of claim 1, wherein seams created between adjacent panels are sealed with one or more sealing materials select from the group consisting of insulation foam, caulk, adhesive or sealing tape.
11. A method of insulating and cladding a building with a building insulation sheathing system comprising:
- providing a building that has an exposed and prepared frame for receiving an insulation system and cladding;
- positioning one or more panels on the exterior surface of the frame of the building, the panels comprising one or more insulating materials and having an exterior surface and an interior surface;
- positioning one or more battens on the exterior surface of the panel(s);
- securing the panel(s) to the frame and the batten(s) to the panel(s) with one or more fasteners;
- trimming excess portions of the panels to square corners and open portal apertures; and
- securing cladding to the batten(s) of the building insulation sheathing system.
12. The method of insulating and cladding a building of claim 11, wherein the panel(s) are secured to the frame by attaching the panel(s) to a plurality of studs.
13. The method of insulating and cladding a building of claim 11, wherein the panel(s) are secured to the frame by attaching the panel(s) to plywood that is attached to a plurality of studs.
14. The method of insulating and cladding a building of claim 11, wherein the panel(s) are foamed insulation panel(s).
15. The method of insulating and cladding a building of claim 14, wherein the foamed insulation panel(s) are made from insulating materials selected from the group consisting of polystyrene, polyisocyanurate, and polyurethane.
16. The method of insulating and cladding a building of claim 14 wherein the foamed panel(s) are made from molded expanded polystyrene (MEPS) foam boards or extruded expanded polystyrene (XEPS) foam boards.
17. The method of insulating and cladding a building of claim 11, wherein the batten(s) are produced from materials selected from the group consisting of wood, plastic and metal.
18. The method of insulating and cladding a building of claim 11, wherein the panel(s) include one or more grooves positioned on the exterior surface of the panel(s) for positioning the battens.
19. The method of insulating and cladding a building of claim 11, wherein the fastener(s) are selected from the group consisting of screws, nails, rivets and adhesives.
20. The method of insulating and cladding a building of claim 11, wherein the panel(s) include one or more beveled edges.
21. The method of insulating and cladding a building of claim 20 wherein the panel(s) include two or more beveled edges and the two or more beveled edges are configured to interact with each other so as to direct moisture away from a building structure
22. The method of insulating and cladding a building of claim 11, wherein the method further includes sealing seams created between adjacent panels with one or more sealing materials select from the group consisting of insulation foam, caulk, adhesive or sealing tape.
Type: Application
Filed: Aug 13, 2010
Publication Date: Feb 17, 2011
Inventor: Adam Joel Hegland (Cannon Falls, MN)
Application Number: 12/856,260
International Classification: E04C 2/10 (20060101); E04B 1/62 (20060101); E04B 2/00 (20060101);