CA2295328A1 - Vapor barrier - Google Patents
Vapor barrier Download PDFInfo
- Publication number
- CA2295328A1 CA2295328A1 CA002295328A CA2295328A CA2295328A1 CA 2295328 A1 CA2295328 A1 CA 2295328A1 CA 002295328 A CA002295328 A CA 002295328A CA 2295328 A CA2295328 A CA 2295328A CA 2295328 A1 CA2295328 A1 CA 2295328A1
- Authority
- CA
- Canada
- Prior art keywords
- vapor barrier
- present
- layer
- vapor
- passed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000004888 barrier function Effects 0.000 title description 24
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 101150017210 ccmC gene Proteins 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- E04B1/625—Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps
-
- 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
-
- 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
- E04B2001/7691—Heat reflecting layers or coatings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
Description
VAPOR BARRIER
FIELD OF THE INVENTION
The present invention relates to a reflective vapor barrier used in insulation applications as a facing material. More particularly, the vapor barrier of the present invention relates to an improved laminated vapor barrier incorporating a laminate of aluminum substrate sheet and a plastic layer.
BACKGROUND OF THE INVENTION
It is already known in the art to use paper, metal foils, polyethylene, or specialized kraft paper as vapor barriers An object of the present invention is to provide a vapor barrier providing simultaneously flame protection, a high tensile strength, advantageously radiant heat as well as vapor and water protection.
SUMMARY OF THE INVENTION
The improved vapor barrier of the present invention comprises an aluminum layer and a polyethylene layer laminated thereto.
According to a preferred embodiment, the vapor barrier further comprises a support
FIELD OF THE INVENTION
The present invention relates to a reflective vapor barrier used in insulation applications as a facing material. More particularly, the vapor barrier of the present invention relates to an improved laminated vapor barrier incorporating a laminate of aluminum substrate sheet and a plastic layer.
BACKGROUND OF THE INVENTION
It is already known in the art to use paper, metal foils, polyethylene, or specialized kraft paper as vapor barriers An object of the present invention is to provide a vapor barrier providing simultaneously flame protection, a high tensile strength, advantageously radiant heat as well as vapor and water protection.
SUMMARY OF THE INVENTION
The improved vapor barrier of the present invention comprises an aluminum layer and a polyethylene layer laminated thereto.
According to a preferred embodiment, the vapor barrier further comprises a support
2 5 layer for supporting the aluminum layer. The support layer is therefore heat laminated to the polyethylene layer.
According to another preferred embodiment, the aluminum layer is 99% pure.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention and its advantages will be more easily understood after reading the following non-restrictive description of a preferred embodiment thereof, made with reference to the following drawings wherein:
Figure 1 is a perspective view partially in cross-section of a wall and a sealing assembly comprising a vapor barrier according to a preferred embodiment of the 1 o invention.
Figure 2 is a schematic diagram of the lamination process to make the vapor barrier according to the present invention.
Figure 3 is a schematic view showing the layers of the vapor barrier of the present invention.
DESCRIPTION OF A PREFERRED EMBODIMENT
2 o With reference to figures 1 to 3, an improved vapor barrier for insulation in the general building industry according to the present invention comprises an aluminum layer (or foil), a support layer (or extrudant) for supporting the aluminum layer (or film) and a polyethylene layer fused to the support layer. The support layer is preferably made of polyethylene. The aluminum layer side of the vapor barrier faces the interior of the room so as to reflect back the heat towards its source. It will be understood that although it is a vapor barrier made of three layers, the present invention contemplates employing two layers, which may comprise an aluminum layer and a polyethylene layer laminated thereto. It will further be understood that the vapor barrier of the present invention may also be referred as a radiant barrier.
The aluminum foil is preferably laminated to a low density 2.5 mm (or thicker) film with an extruded 0.5 mm of virgin low density polyethylene.
According to another preferred embodiment, the aluminum layer is 99% pure.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention and its advantages will be more easily understood after reading the following non-restrictive description of a preferred embodiment thereof, made with reference to the following drawings wherein:
Figure 1 is a perspective view partially in cross-section of a wall and a sealing assembly comprising a vapor barrier according to a preferred embodiment of the 1 o invention.
Figure 2 is a schematic diagram of the lamination process to make the vapor barrier according to the present invention.
Figure 3 is a schematic view showing the layers of the vapor barrier of the present invention.
DESCRIPTION OF A PREFERRED EMBODIMENT
2 o With reference to figures 1 to 3, an improved vapor barrier for insulation in the general building industry according to the present invention comprises an aluminum layer (or foil), a support layer (or extrudant) for supporting the aluminum layer (or film) and a polyethylene layer fused to the support layer. The support layer is preferably made of polyethylene. The aluminum layer side of the vapor barrier faces the interior of the room so as to reflect back the heat towards its source. It will be understood that although it is a vapor barrier made of three layers, the present invention contemplates employing two layers, which may comprise an aluminum layer and a polyethylene layer laminated thereto. It will further be understood that the vapor barrier of the present invention may also be referred as a radiant barrier.
The aluminum foil is preferably laminated to a low density 2.5 mm (or thicker) film with an extruded 0.5 mm of virgin low density polyethylene.
3 The aluminum foil and the film are preferably laminated by a semi fluid extrudant (polyethylene) that falls between the two substrates. The sandwich construction results in a mechanical and heated laminated bond. The total thickness is preferably 3.275 mm t 10% but could also be thicker.
Physical properties of the vapor barrier of the present invention Weight: approximately 18 Ibs/Mpi2 {88 g/m2) 1o Tensile resistance: Minimum of 23.9 Mpa (longitudinal) Minimum of 19.5 Mpa (transversal) Saturated vapor pressure: (ASTM-E96 Process "A") Before ageing, 1 nglPa. S. m2 (0.01147 perms) After ageing, 4 nglPa. S. m2 (0.04588 perms) Reflection: 97%
Emission: 3%
Flexibility: at -10°C (excellent) Factor R: as calculated according to the Ashrea Handbook of insulation, the vapor barrier of the present invention 2 0 offers a factor R in the order of 2.9 - 3.8. Horizontal heat movement (walls). In order to obtain this factor R, you must allowa s/" air-space (20 mm) facing the radiant surface of the vapor barrier of the present invention.
Evaluation of technical reauirements of the vapor barrier of the present invention according to the Canadian Construction Materials Center ~CCMC).
A sample of the present invention was tested in accordance to CCMC Technical 3 0 Guide for "Vapor Barrier" Masterformat Section 07261 for the following tests:
Physical properties of the vapor barrier of the present invention Weight: approximately 18 Ibs/Mpi2 {88 g/m2) 1o Tensile resistance: Minimum of 23.9 Mpa (longitudinal) Minimum of 19.5 Mpa (transversal) Saturated vapor pressure: (ASTM-E96 Process "A") Before ageing, 1 nglPa. S. m2 (0.01147 perms) After ageing, 4 nglPa. S. m2 (0.04588 perms) Reflection: 97%
Emission: 3%
Flexibility: at -10°C (excellent) Factor R: as calculated according to the Ashrea Handbook of insulation, the vapor barrier of the present invention 2 0 offers a factor R in the order of 2.9 - 3.8. Horizontal heat movement (walls). In order to obtain this factor R, you must allowa s/" air-space (20 mm) facing the radiant surface of the vapor barrier of the present invention.
Evaluation of technical reauirements of the vapor barrier of the present invention according to the Canadian Construction Materials Center ~CCMC).
A sample of the present invention was tested in accordance to CCMC Technical 3 0 Guide for "Vapor Barrier" Masterformat Section 07261 for the following tests:
4 - Sheet width - Sheet length - Pliability - Tensile strength and elongation - Water vapor permenance (before and after ageing) The results of the analysis are summarized in the Table 1. The sample of the vapor barrier of the present invention has passed the requirements outlined in CCMC
Technical Guide for "Vapor Barrier" Mastertormat Section 07261.
Although preferred embodiments of the present invention have been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be effected therein without departing from the scope or spirit of the present invention.
Table 1: Results CCMC
Masterformat Section Test Requirement Result Comment Sheet Width: (mm) 1321 Nominal 1349 Measured z 99~ of nominal102 Passed width ~ difference Sheet Length: (mm) 30500 Nominal 32271 Measured z nominal length+1771 Passed Difference Pliability (at-10C) No cracking No crackingPassed Tensile Strength: (Mpa) Machine direction z 12 23.9 Passed Transverse direction z g 19.5 Passed Elongation: (%) Machine direction z 225 834 Passed Transverse direction >_ 350 831 Passed Water Vapor Permenance:
(ng/Pa.s.m2) (type 1 material) As receiving s 15 1 Passed As ageing s 15 4 Passed
Technical Guide for "Vapor Barrier" Mastertormat Section 07261.
Although preferred embodiments of the present invention have been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be effected therein without departing from the scope or spirit of the present invention.
Table 1: Results CCMC
Masterformat Section Test Requirement Result Comment Sheet Width: (mm) 1321 Nominal 1349 Measured z 99~ of nominal102 Passed width ~ difference Sheet Length: (mm) 30500 Nominal 32271 Measured z nominal length+1771 Passed Difference Pliability (at-10C) No cracking No crackingPassed Tensile Strength: (Mpa) Machine direction z 12 23.9 Passed Transverse direction z g 19.5 Passed Elongation: (%) Machine direction z 225 834 Passed Transverse direction >_ 350 831 Passed Water Vapor Permenance:
(ng/Pa.s.m2) (type 1 material) As receiving s 15 1 Passed As ageing s 15 4 Passed
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002295328A CA2295328A1 (en) | 2000-01-11 | 2000-01-11 | Vapor barrier |
| CA002365778A CA2365778C (en) | 2000-01-11 | 2000-05-11 | Vapor and radiant barrier |
| PCT/CA2000/000554 WO2001051724A1 (en) | 2000-01-11 | 2000-05-11 | Vapor and radiant barrier |
| AU47376/00A AU4737600A (en) | 2000-01-11 | 2000-05-11 | Vapor and radiant barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002295328A CA2295328A1 (en) | 2000-01-11 | 2000-01-11 | Vapor barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2295328A1 true CA2295328A1 (en) | 2001-07-11 |
Family
ID=4165047
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002295328A Abandoned CA2295328A1 (en) | 2000-01-11 | 2000-01-11 | Vapor barrier |
| CA002365778A Expired - Lifetime CA2365778C (en) | 2000-01-11 | 2000-05-11 | Vapor and radiant barrier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002365778A Expired - Lifetime CA2365778C (en) | 2000-01-11 | 2000-05-11 | Vapor and radiant barrier |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU4737600A (en) |
| CA (2) | CA2295328A1 (en) |
| WO (1) | WO2001051724A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2991352A1 (en) * | 2012-05-30 | 2013-12-06 | Yes Maison | Rain barrier for dwelling, has set of rigidification elements that is placed in parallel to each other, where distance between rigidification elements corresponds to multiple or submultiple of unit of length |
| JP7254068B2 (en) | 2017-08-16 | 2023-04-07 | ダウ グローバル テクノロジーズ エルエルシー | How to form tiles using low temperature thermal lamination |
| CN113089860B (en) * | 2021-04-12 | 2022-02-22 | 朱秦江 | Assembled leveling composite radiation energy-saving concrete wall and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296162A (en) * | 1978-03-14 | 1981-10-20 | Jean Raymond W | Wallcoverings |
| US4625486A (en) | 1985-01-22 | 1986-12-02 | Dickinson Thomas C | Laminated vapor barrier material and methods of use |
| US4924650A (en) * | 1988-06-03 | 1990-05-15 | Dalluege Juergen | Method for thermally insulating an enclosed volume using an infra-red radiation reflecting laminate |
| US5750225A (en) | 1995-05-26 | 1998-05-12 | Compac Corporation | Laminated vapor barrier |
| AU3949499A (en) * | 1998-05-21 | 1999-12-06 | Laszlo Pirityi | Heat reflecting foil |
-
2000
- 2000-01-11 CA CA002295328A patent/CA2295328A1/en not_active Abandoned
- 2000-05-11 CA CA002365778A patent/CA2365778C/en not_active Expired - Lifetime
- 2000-05-11 WO PCT/CA2000/000554 patent/WO2001051724A1/en active Application Filing
- 2000-05-11 AU AU47376/00A patent/AU4737600A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU4737600A (en) | 2001-07-24 |
| CA2365778C (en) | 2003-01-07 |
| WO2001051724A1 (en) | 2001-07-19 |
| CA2365778A1 (en) | 2001-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |