REINFORCED REFLECTIVE INSULATION FOR CONSTRUCTION
20260092446 ยท 2026-04-02
Inventors
Cpc classification
E04B1/7658
FIXED CONSTRUCTIONS
International classification
Abstract
Described is a reflective insulating material for use in metal building insulation (MBI) or in post frame building insulation (PFBI) applications, the reflective insulating material comprising: a first outer layer and a second outer layer disposed parallel to one another, the first outer layer made of a reflective radiant barrier material; an insulation layer disposed between the first and second outer layers; and a fabric layer that is a scrim layer or a woven layer disposed between the first and second outer layers. The fabric layer can have various properties. A polymer seal layer can also be provided as part of the material. Processes for manufacturing the reflective insulating material are also provided.
Claims
1. A reflective insulating material for use in metal building insulation (MBI) or in post frame building insulation (PFBI) applications, the reflective insulating material comprising: a first outer layer and a second outer layer disposed parallel to one another, the first outer layer made of a reflective radiant barrier material; a first insulation layer disposed between the first and second outer layers; and a fabric layer disposed between the first and second outer layers, wherein the fabric layer is a scrim layer comprising apertures or a woven textile material layer defining a generally continuous surface without apertures.
2. The reflective insulating material of claim 1, wherein the insulation layer is a bubble layer.
3. The reflective insulating material of claim 1, wherein the insulation layer is a foam layer.
4. The reflective insulating material of claim 1, comprising a second insulation layer disposed between the first and second outer layers.
5. The reflective insulating material of claim 1, comprising an intervening layer disposed between the first and second outer layers and made of one or a combination or blend of: polyethylene, polypropylene, and nylon.
6. The reflective insulating material of claim 1, wherein the reflective radiant barrier material is made of one or a combination of: metallized polyester (METPET), and metal (e.g., aluminum) foil.
7. The reflective insulating material of claim 1, wherein the second outer layer is made of one or a combination of: polyethylene, polypropylene, and nylon.
8. The reflective insulating material of claim 1, wherein the second outer layer is made of the reflective radiant barrier material.
9. The reflective insulating material of claim 1, wherein the woven threads of the fabric layer are made of one or a combination of: nylon, fiber glass, polyethylene, and polyester.
10. The reflective insulating material of claim 1, wherein the insulation layer is made of one or a combination or blend of: polyethylene, polypropylene, and nylon.
11. The reflective insulating material of claim 1, wherein two or more of the layers of the reflective insulating material are bonded together.
12. The reflective insulating material of claim 11, wherein two or more of the layers of the reflective insulating material are adhesively laminated together.
13. The reflective insulating material of claim 11, wherein two or more of the layers of the reflective insulating material are bonded together with one or a combination of: thermal, chemical, or mechanical bond.
14. The reflective insulating material of claim 1, wherein the fabric layer is the scrim layer and the apertures are shaped as one or more of: slits, circles, ovals, ellipses, monogons, bigons, triangles, quadrilaterals, pentagons, hexagons, heptagons, octagons, nonagons, and decagons.
15. The reflective insulating material of claim 1, wherein the material is configured such that the fastening means are one or a combination of: clips and staples.
16. The reflective insulating material of claim 14, wherein a pattern defined by the threads of the scrim layer is configured to effectively capture in any direction, with at least one of the apertures of the scrim layer, a pin of one of the fastening means.
17. The reflective insulating material of claim 16, wherein two pins of one of the staples are only receivable by two distinct ones of the apertures of the scrim fabric layer.
18. The reflective insulating material of claim 1, wherein the fabric layer is continuous and does not define apertures, and wherein the fabric layer is configured to be punctured by the parts of the fastening means.
19. The reflective insulating material of claim 1, wherein the fabric layer has one or more of the following characteristics: MD yarn of 550 Dtex HT Polyester; CD yarn of 550 Dtex HT Polyester; pattern of 1.21.05 yarns/cm; tensile of 209185 N/5 cm; weight of 15.02 g/m2; coating of polyvinyl alcohol; and width of maximum 2100 mm.
20. The reflective insulating material of claim 1, wherein the reflective insulating material has a width between about 24 to about 104 inches, and a thickness of between about 0.1 to about 0.75 inches.
21. The reflective insulating material of claim 1, wherein the reflective insulating material passes one or more of the following tests: ASTM E84-08 Steiner tunnel test with a fire rating value of at least class A, a flame spread value under 25 and a smoke developed value under 450; ASTM G155 UV test with a value of at least 90% retained retention after 4000 hours; NFPA 286 fire rating full room burn test; ASTM C1371-04A emissivity test with a value of at least 0.04; ASTM E903 reflectivity test with a value of at least 0.96; ASTM E96 water vapor permeability test with a value of at least 0.01 Perms; ASTM C1149 resistance to fungi and bacteria test; ASTM C1224-03 pliability test with no cracking; ASTM C1224-03 bleeding and delamination test with no bleeding or delamination; and ASTM D3310-00 corrosiveness test.
22. A reflective insulating material for use in metal building insulation (MBI) or in post frame building insulation (PFBI) applications, the reflective insulating material comprising: a first outer layer made of a reflective radiant barrier material; an adhesive layer disposed on the first outer layer; a polymer film layer disposed on the adhesive layer; an insulation layer contiguous with the first polymer film layer, the insulation layer being composed of bubbles or foam; a polymer seal layer contiguous with an opposed side of the insulation layer; a reinforcement assembly laminated to the polymer seal layer, the reinforcement assembly comprising: a first polymer film; a second polymer film; and a reinforcement layer comprising a fabric sandwiched between the first and second polymer films.
23. A reflective insulating material for use in metal building insulation (MBI) or in post frame building insulation (PFBI) applications, the reflective insulating material comprising: a first outer layer made of a reflective radiant barrier material; an adhesive layer disposed on the first outer layer; a polymer film layer disposed on the adhesive layer; an insulation layer contiguous with the first polymer film layer, the insulation layer being composed of foam; a polymer seal layer contiguous with an opposed side of the insulation layer; and a multi-layer component disposed on the polymer seal layer.
24. A reflective insulating material for use in metal building insulation (MBI) or in post frame building insulation (PFBI) applications, the reflective insulating material comprising: an outer laminated assembly comprising: a first outer layer made of a reflective radiant barrier material; an adhesive layer disposed on the first outer layer; and a polymer film layer disposed on the adhesive layer; an inner multi-layer assembly comprising: an insulation layer contiguous with the first polymer film layer, the insulation layer being composed of foam; a second outer layer disposed on the insulation layer; wherein the outer laminated assembly and the inner multi-layer assembly are laminated together using a film bubble line such that the insulation layer is adhered to the first polymer film layer, to form the reflective insulating material.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
[0045] The present description relates to a reflective insulating material for use in building insulation. The reflective insulating material, also referred to as insulating material, can be used in metal building insulation (MBI) and in post frame building insulation (PFBI) comprising wood or metal frames, beams, sheets, and posts. The insulating material can be in the form of a sheet which can advantageously be rolled and unrolled for transporting, installation, and storing.
[0046] In general,
[0047] Referring to
[0048] The insulating material 10 includes the first outer layer 12 and the second outer layer 14 defining respective boundaries of the insulating material 10 along a thickness of the same. The first and second outer layers 12, 14, and any other layers of the insulating material 10, can be disposed substantially parallel to one another in a stacked configuration. In some examples, the first and second outer layers 12, 14 can be bonded or sewn together at the periphery widthwise and lengthwise of the insulating material 10. The thickness of the insulating material 10 defined by the first and second outer layers 12, 14 can be between about 0.1 to about 0.75 inches.
[0049] The first outer layer 12 is made of a reflective material and is configured to act as a radiant barrier by reflecting radiant heat received thereon. The reflective material can be made of metallized polyester (METPET), aluminum foil, or of a combination of both. When the first outer layer 12 is made of METPET, its thickness can be of about 44 gauge. When the first outer layer 12 is made of aluminum foil, such as pure aluminum foil, its thickness can be of about 6 to about 8 microns.
[0050] The second outer layer 14 can be made of polyethylene, polypropylene, nylon, or a combination thereof. The second outer layer 14 can have a thickness of about 1.0 mil to about 1.2 mil. Alternatively, the second outer layer 14 can also be made of the reflective material which can be the same as the first outer layer 12 or a different reflective material.
[0051] In certain implementations, the reflective insulating material 10 can be installed on the building in a way that the first outer layer 12 will face towards outside of the building, or at least towards a side of the reflective insulating material 10 where radiant heat is at its highest intensity compared to the other sides of the same. On the other hand, the second outer layer 14 can be positioned such that it faces towards inside the building, usually where the radiant heat has a lower intensity. At least due to its positioning, the second outer layer 14 can have more chances of being viewed by people within the building. The second outer layer 14 can therefore be colored, e.g., clear, white, black, etc., and/or include patterns and/or ornaments on its outer surface.
[0052] The insulating material 10 further includes an insulation layer 16 disposed between the first and second outer layers 12, 14. The insulation layer 16 is configured to limit or prevent heat transfer from one side of the insulating material 10 towards another. The insulation layer 16 can include an array of insulating bubbles 18 and can therefore be referred to as the bubble insulation layer 16. The insulation layer 16 can be a film of insulation material from which the bubbles 18 are formed. It will be appreciated that the bubbles 18 of the insulation layer 16 include cavities, or receptacles, 20 which can encapsulate air within, thus improving the insulation properties of the insulating material 10. The size of the bubbles 18, the disposition of the bubbles 18 within the bubble insulation layer 16, and the gaps between the bubbles 18 can therefore be adapted to modify and obtain desired R values for the reflective insulating material 10. In certain implementations, the bubbles 18 can be filled with gas, for example argon, to obtain higher R values.
[0053] Alternatively, the bubbles 18 of the insulation layer 16 can be replaced by other shapes that can partly or fully encase air within the receptacles 20. For example, the insulation layer 16 can include half-spheres or boxes with curved and/or straight surfaces. In certain examples, two or more bubbles 18 of the insulation layer 16 can have different sizes. The insulation layer 16 can be made of polyethylene, polypropylene, nylon, combinations or blend thereof, or of any other known insulation material. The insulation layer 16 can have a thickness of about 1.6 mil to about 2.4 mil.
[0054] As will be described in more detail further below, the insulation layer 16 could alternatively be composed of foam and in such embodiments can be referred to as a foam layer or foam insulation layer. Foam can provide insulation as well as rigidity to the product.
[0055] The insulating material 10 further includes a scrim fabric layer 22 disposed between the first and second outer layers 12, 14. The scrim fabric layer 22 is configured to strengthen the insulating material 10 and to reinforce securing of the insulating material 10 with fastening means 28. The scrim fabric layer 22 can further increase tear or puncture resistance of the insulating material 10 and improve dimensional stability of the same. The scrim fabric layer 22 can include threads, or strings, 24 defining a pattern with apertures 26 therebetween. The threads 24 of the scrim fabric layer 22 can be woven to define the pattern. The threads 24 of the scrim fabric layer 22 can be woven in machine direction (MD), in cross-machine direction (CD), or in a combination of both. The threads 24 of the scrim 22 can be chemically bonded in an open mesh construction. Functional binders can be used to enhance chemical, heat or moisture resistance of the insulating material 10, for proper chemical compatibility with the rest of the insulating material 10, or to improve the adhesive properties of the scrim fabric layer 22. The scrim layer 22 can be woven or non-woven and can have various properties in terms of material and dimensions.
[0056] The scrim fabric layer 22 can receive through its apertures 26 the fastening means 28 passing through the reflective insulating material 10 to secure the reflective insulating material 10 to the building. The fastening means 28 can therefore engage with the material, e.g., threads 24, of the scrim fabric layer 22 to further secure the installation of the insulating material 10. The fastening means 28 can be clips or staples having pins or parts passing through the apertures 24. The pins or parts 30 of the fastenings means 28 passing through the apertures 24 can abut or hook with the threads 24 when the fastening means 28 are laterally displaced, for example under an external force, i.e., strong winds. As shown in
[0057] The pattern of the scrim threads 24 can define various shapes and sizes of aperture 26. For example, the apertures 26 can be shaped, without being limited hereto as one or more of: slits, circles, ovals, ellipses, monogons, bigons, triangles, quadrilaterals, e.g., squares or rectangles, pentagons, hexagons, heptagons, octagons, nonagons, and decagons. The staples 28 used can have the shape and size of any commercially available staples. For example, the staples 28 can have pins 30 distanced of about inches, about inches, about inches or about inches.
[0058] In certain implementations, the scrim fabric layer 22 can have one or more of the following characteristics: MD yarn of 550 Dtex HT Polyester; CD yarn of 550 Dtex HT Polyester; pattern of 1.21.05 yarns/cm; tensile of 209185 N/5 cm; weight of 15.02 g/m2; coating of polyvinyl alcohol; and width of maximum 2100 mm.
[0059] In other implementations, the fabric layer 22 can be full or continuous, meaning that it can be generally free from the apertures 26. In such cases, the threads 24 of the fabric layer 22 can be so tightly woven, or woven in such a way, that substantially no apertures 26 are defined within the fabric layer 22. The threads 24 of the fabric layer 22 can thus be broken or displaced to allow passage of the pins 30 of the staples 28 when the pins 30 are inserted within the insulating material 10. In such implementations, the fabric layer can be referred to as a woven textile material layer defining a generally continuous surface without apertures. In yet other examples, the fabric layer 22 can be a continuous nonwoven layer of material and can therefore be punctured by the pins 30 of the staples 28 passing through the insulating material 10.
[0060] The insulating material 10 can also include one or more intervening layers 32 disposed between any of the above-described layers included in the insulating material 10. When two adjacent material layers of the insulating material 10 cannot or should not be secured or adhere to one another, for example when using heat and compression, the intervening layer 32 can be disposed between the two layers to allow securing thereof. The intervening layers 32 can be made of polyethylene, polypropylene, nylon, or a combination or blend thereof. Several examples are shown in the drawings.
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[0062] Referring to the implementation of
[0063] Referring now to the implementation of
[0064] Referring to the implementation of
[0065] Referring to the implementation of
[0066] Referring now to
[0067] Referring to the implementation of
[0068] Referring to the implementation of
[0069] Referring to the implementation of
[0070] Referring to the implementation of
[0071] Now referring to
[0072] As described above, the reflective insulating material 10 can be provided in the form of a sheet. In an implementation, the sheet of reflective insulating material 10 can have a width between about 24 inches to about 104 inches. The sheet of reflective insulating material 10 can also have a length of about 1500 inches. The sheet of reflective insulating material 10 can be manufactured, stored, transported and installed as is. The sheet of reflective insulating material 10 can also be manufactured, stored, and/or transported with a given width and length and cut into smaller sheets before installation on a building.
[0073] The reflective insulating material 10, and more precisely the scrim fabric layer 22 included therein, can be adapted to withstand typical maximal wind speed under which a construction worker is allowed to work on buildings. The reflective insulating material 10 can be configured to pass one or more of the following tests: [0074] ASTM E84-08 Steiner tunnel test with a fire rating value of at least class A, a flame spread value under 25 and a smoke developed value under 450; [0075] ASTM G155 UV test with a value of at least 90% retained retention after 4000 hours; [0076] NFPA 286 fire rating full room burn test; [0077] ASTM C1371-04A emissivity test with a value of at least 0.04; [0078] ASTM E903 reflectivity test with a value of at least 0.96; [0079] ASTM E96 water vapor permeability test with a value of about or at least 0.01 Perms; [0080] ASTM C1149 resistance to fungi and bacteria test; [0081] ASTM C1224-03 pliability test with no cracking; [0082] ASTM C1224-03 bleeding and delamination test with no bleeding or delamination; and [0083] ASTM D3310-00 corrosiveness test.
[0084] As shown in
[0085] The process 200 can further include forming bubbles 18 or air encapsulating cavities from an insulation material. As an example, the bubbles 18 can be vacuum formed from a polyethylene film sheet.
[0086] The process 200 also includes bonding together each of the layers of the insulating material 10, i.e., laminated and non-laminated. The bonding can be achieved through the application of heat and compression on the stacked layers of the insulating material 10. The application of heat and pressure can result in some of the layers of the insulating material 10, for example the intervening layers 32 and the bubble insulation layers 16, to melt and thermally bond with another adjacent melted layer. In some examples, the melting temperature of the bonding step can be between about 280 to about 300 F. Understandably, the reflective insulating material 10 can be obtained using alternative bonding methods, such as mechanical bonding, thermal bonding, and chemical bonding, and alternative manufacturing processes, such as casting.
[0087] In some implementations, the scrim fabric layer 22 may not adhere with other layers during the heating and compression step because its melting point can be much higher than the heat applied during said step. It can therefore be appreciated that because the scrim fabric layer 22 can include apertures 26, the two layers of material adjacent the scrim fabric layer 22, usually two intervening layers 32 or an intervening layer 32 and a bubble insulation layer 16, can connect and bond together by passing through the apertures 26 of the scrim fabric layer 22.
[0088] Referring now to
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[0090] In some implementations, the reflective insulating material can include a polymer seal layer in between the insulations layer (e.g., foam or bubble layer) and an adjacent layer, which could be a laminated multilayer assembly that is on the opposite side as the reflective radiant barrier. For example,
[0091] In some implementations, the reflective insulating material includes a reflective barrier layer that has a thickness that is 44 gauge or above. The reflective radiant barrier material can be made of metallized polyester (METPET) and/or a metal foil. When a metal foil is used, the metal foil can be a metal alloy, the metal foil can be composed of Al, which may have an Al purity of at least 99% or 99.35%. In some implementations, the metal foil has a thickness of at least 7 microns. Other metals such as Cu and Au are also possible components. The metal can have a thickness and a metallic composition can be tailored to provide a target 95% or higher emissivity specification. In addition, depending on the metal, the reflective insulation could be lacquered to offer weatherization if desired.
[0092] In some implementations, the various polymer sheet layers provided in the product (e.g., PE sheets for top, bottom, lamination, and sealing layers) can be 0.5 mil or thicker, with the outer layer being composed of UV resistant polymer.
[0093] The woven textile material can have various properties. The woven textile material can be provided as a prefabricated laminate that has a single or double polymer film pre-laminated with it. The external polymer film of the prefabricated laminate can have UV resistant properties, such as UV resistant polyethylene (PE), in which case the UV resistant PE layer could be an outer layer of the product. In case of double sided woven, the inner PE layer can have EVA, Vistamaxx, and/or other additives to aid with better adhesion. The woven layer can be obtained as a single side PE coated layer, or a double side PE coated layer, for example.
[0094] The foam layer can have certain properties to provide desired functionality to the finished product. For example, the foam insulation layer can have a 1/16 minimum thickness. The foam material itself can vary in density from low to high to provide corresponding rigidity of the final product. The foam can be composed of polymers, for example based on polyethylene (PE) including LDPE foam or HDPE foam. These polymer compositions can include fire-retardant additives to pass smoke and fire test standards.
[0095] In terms of manufacturing, the layers can be assembled using a various manufacturing techniques. One such manufacturing process incorporates lamination and a film bubble line combination to produce the final product. Another manufacturing process involves lamination and cast bubble line to achieve the final product. Yet another manufacturing process uses lamination and foam extrusion to build the final product.
[0096] Embodiments described herein can facilitate certain advantages depending on construction. For example, products that include a foam insulation layer can facilitate additional rigidity compared to bubble insulation to help withstand weather conditions, such as high winds and potential damage during installation. In addition, the presence of a fabric layer can provide additional rigidity compared to bubble-based products with no fabric layer. Providing double insulation layers, e.g., foam or bubble, can also provide enhanced rigidity and improved thermal properties if desired.
[0097] Several alternative implementations and examples have been described and illustrated herein. The implementations described above are intended to be exemplary only. It will be appreciated that the processes described herein can be performed in the described order, or in any suitable order. A person with common technical knowledge would appreciate the features of the individual implementations, and the possible combinations and variations of the components. A person of common technical knowledge would further appreciate that any of the implementations could be provided in any combination with the other implementations disclosed herein. It is understood that the product can have other specific forms without departing from the central characteristics thereof. The present examples and implementations, therefore, are to be considered in all respects as illustrative and not restrictive, and the product is not to be limited to the details given herein. Accordingly, while the specific implementations have been illustrated and described, numerous modifications come to mind. The scope of the product is therefore intended to be limited solely by the scope of the appended claims.