GB2103997A - Thermal insulating material - Google Patents
Thermal insulating material Download PDFInfo
- Publication number
- GB2103997A GB2103997A GB08125415A GB8125415A GB2103997A GB 2103997 A GB2103997 A GB 2103997A GB 08125415 A GB08125415 A GB 08125415A GB 8125415 A GB8125415 A GB 8125415A GB 2103997 A GB2103997 A GB 2103997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulator
- layer
- surface layer
- permeable
- insulating material
- 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.)
- Granted
Links
- 239000011810 insulating material Substances 0.000 title claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002344 surface layer Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000011888 foil Substances 0.000 claims description 12
- 239000000123 paper Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims description 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- 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
- E04B1/7608—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 comprising a prefabricated insulating layer, disposed between two other layers or panels
- E04B1/7612—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 comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- 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
- E04B1/762—Exterior insulation of exterior walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/04—Insulators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
This invention relates to thermal insulating material and method of use thereof particularly but not exclusively in relation to insulating cavity walls of buildings. The insulator comprises a laminar segment of insulating material (1) provided with a poorly thermally radiative surface layer (2) which is permeable to water vapour. In use the insulator may be disposed adjacent the inner leaf of a cavity wall (7). <IMAGE>
Description
SPECIFICATION
Thermal insulating material
This invention relates to thermal insulating material particularly but not exclusively for use in insulating cavity walls of buildings.
It is known to insulate cavity walls by means of blocks of rigid plastics foam. These are coated on one face with metal foil to obstruct passage of water vapour through the blocks. The faces bearing metal foil are directed towards the interior of the building so that any water which penetrates between the board segments is not retained in the foam but can escape towards the exterior of the building.
According to a first aspect of the present invention an insulator comprises a laminar segment of insulating material provided with a poorly thermally radiative surface layer which is permeable to water vapour.
The surface layer may be either sufficiently thin to be permeable to water or may be provided with holes therein or otherwise perforated to facilitate movement of water.
A surface layer in accordance with this invention may preferably comprise a thin or perforated layer of metal foil such as aluminium, metallised paper; white paper or white plastics material such as PVC which offers little resistance to the transmission of water vapour. Surface layers in accordance with this invention may also be thermally reflective. A thin layer of metal foil may have a thickness of the order of 5 microns. A perforated layer of metal foil may have a thickness of 6 to 60 microns.
Insulators in accordance with the first aspect of this invention may be disposed within cavity walls of buildings with their poorly radiative surfaces directed towards the exterior of the building.
Preferably these insulators are disposed adjacent the inner leaf of a cavity wall. This provides improved insulation relative to the prior art without preventing passage of water to the exterior. The thickness of insulating material needed is thereby reduced with an attendant saving in the cost of materials.
Preferred insulating materials include rigid polyurethane or other plastics foams and rigid or flexible mineral insulators.
According to a second aspect of the present invention a method of insulating cavity walls comprises locating within the cavity a laminar insulating material provided with a water permeable, poorly thermally radiative surface layer which is permeable to water vapour, said surface layer being directed towards the exterior wall.
Both surfaces of a laminar insulating material may be optionally provided with poorly thermally radiative layers only one of which is water permeable. However problems may arise because persons installing the material may not easily differentiate between two layers both of which may be, for example, coated in aluminium foil. It may therefore be difficult to ensure correct orientation of the segments during installation. A
singie permeable, poorly radiative layer may
therefore be preferred.
Insulators in accordance with this invention
may find use as sarking board for insulating the
interior of roofs. For this purpose, the upper,
exterior facing is preferably provided with a poorly
thermally radiative metallic layer which is
permeable to water vapour since such a layer is
fire resistant as required by statute.
The invention may be better understood from
the following description by way of an example
with reference to the accompanying drawing.
Figure 1 illustrates in cross section, a portion of
an insulator in accordance with the invention
disposed within a wall cavity.
The insulator shown in Figure 1, comprises a
laminar block of rigid polyurethane foam 1,
provided on one surface with a 6 mm layer of
aluminium foil 2. The layer 2 has a number of
perforations 3.
The surface of the insulator remote from the
metal covered surface is provided with a layer 4 of
polythene coated glass tissue. This serves to strengthen and protect the insulator. The layer 4
also serves as a barrier to the passage of water vapour. The layer 4 may be alternatively
composed of any paper, plastics or metallic
material. In some embodiments of the invention the layer 4 may be omitted.
The insulator is illustrated disposed adjacent to the inner leaf of a wall cavity 5.
The poorly radiative, metallic surface 2 is directed towards the exterior wall 6 and the non
metallic layer 4 is directed towards the interior wall 7.
In use of the insulator, radiation of thermal energy which has penetrated from the interior wall 7 through the insulation 1 is reduced by the metallic surface 2. Escape of water vapour from the interior wall to the exterior is not prevented by the metallic layer by virtue of the perforations 3.
1. An insulator comprising a laminar segment of insulating material provided with a poorly thermally radiative surface layer which is permeable to water vapour.
2. An insulator as claimed in Claim 1, wherein the surface layer is perforated.
3. An insulator as claimed in Claim 1 or 2, wherein the surface layer is composed of one or more of metal foil, metallised paper, white paper or a white plastics material.
4. An insulator as claimed in Claim 3, wherein the surface layer is composed of aluminium.
5. An insulator as claimed in Claim 3, wherein the surface layer is composed of polyvinyl chloride.
6. All insulator as claimed in any preceding claim, wherein the surface layer is thermally reflective.
7. An insulator as claimed in claim 1, wherein the surface layer comprises metal with a thickness of five to ten microns.
8. An insulator as claimed in Claim 2, wherein
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (12)
1. An insulator comprising a laminar segment of insulating material provided with a poorly thermally radiative surface layer which is permeable to water vapour.
2. An insulator as claimed in Claim 1, wherein the surface layer is perforated.
3. An insulator as claimed in Claim 1 or 2, wherein the surface layer is composed of one or more of metal foil, metallised paper, white paper or a white plastics material.
4. An insulator as claimed in Claim 3, wherein the surface layer is composed of aluminium.
5. An insulator as claimed in Claim 3, wherein the surface layer is composed of polyvinyl chloride.
6. All insulator as claimed in any preceding claim, wherein the surface layer is thermally reflective.
7. An insulator as claimed in claim 1, wherein the surface layer comprises metal with a thickness of five to ten microns.
8. An insulator as claimed in Claim 2, wherein the surface layer comprises metal with a thickness of six to sixty microns.
9. An insulator as claimed in any preceding claim, wherein opposite surfaces comprise poorly thermally radiative layers only one of which is water permeable.
10. An insulator as claimed in any preceding claim, adapted for use in cavity walls of buildings.
11. Material adapted for insulation of roofs in accordance with any of claims 1 to 9.
12. A method of insulating cavity walls comprising locating within the cavity a laminar insulating material provided with a poorly thermally radiative surface layer which is permeable to water vapour, said surface layer being directed towards the exterior wall.
1 3. A method as claimed in claim 12, comprising use of an insulator as claimed in any of claims 1 to 11.
1 4. An insulator substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
1 5. A method substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08125415A GB2103997B (en) | 1981-08-20 | 1981-08-20 | Thermal insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08125415A GB2103997B (en) | 1981-08-20 | 1981-08-20 | Thermal insulating material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2103997A true GB2103997A (en) | 1983-03-02 |
| GB2103997B GB2103997B (en) | 1985-09-25 |
Family
ID=10524054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08125415A Expired GB2103997B (en) | 1981-08-20 | 1981-08-20 | Thermal insulating material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2103997B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137138A (en) * | 1983-03-15 | 1984-10-03 | Atomic Energy Authority Uk | Thermal insulation layer |
| GB2364338A (en) * | 2000-04-26 | 2002-01-23 | Douglas Cownie Forbes | Insulated, vapour-permeable, liquid-impermeable panel |
| GB2382827A (en) * | 2002-01-23 | 2003-06-11 | Thermal Economics Ltd | Improved thermal insulation |
| GB2449457A (en) * | 2007-05-22 | 2008-11-26 | Polypipe Tdi Ltd | Cavity closer device and assembly for cavity wall and frame of a closure |
| GB2488466A (en) * | 2007-05-22 | 2012-08-29 | Polypipe Ltd | A cavity closer with heat resistant foil or membrane |
-
1981
- 1981-08-20 GB GB08125415A patent/GB2103997B/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137138A (en) * | 1983-03-15 | 1984-10-03 | Atomic Energy Authority Uk | Thermal insulation layer |
| US4525406A (en) * | 1983-03-15 | 1985-06-25 | Secretary of State for United Kingdom Atomic Energy Authority | Thermal insulation layer |
| GB2364338A (en) * | 2000-04-26 | 2002-01-23 | Douglas Cownie Forbes | Insulated, vapour-permeable, liquid-impermeable panel |
| GB2364338B (en) * | 2000-04-26 | 2004-01-28 | Douglas Cownie Forbes | Improvements relating to construction |
| GB2382827A (en) * | 2002-01-23 | 2003-06-11 | Thermal Economics Ltd | Improved thermal insulation |
| EP1331316A1 (en) * | 2002-01-23 | 2003-07-30 | Thermal Economics Limited | Improved thermal insulation |
| GB2382827B (en) * | 2002-01-23 | 2003-11-12 | Thermal Economics Ltd | Improved thermal insulation |
| GB2449457A (en) * | 2007-05-22 | 2008-11-26 | Polypipe Tdi Ltd | Cavity closer device and assembly for cavity wall and frame of a closure |
| GB2488466A (en) * | 2007-05-22 | 2012-08-29 | Polypipe Ltd | A cavity closer with heat resistant foil or membrane |
| GB2449457B (en) * | 2007-05-22 | 2012-09-19 | Polypipe Ltd | A cavity closer |
| GB2488466B (en) * | 2007-05-22 | 2012-10-24 | Polypipe Ltd | A device for mounting at a cavity of a cavity wall |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2103997B (en) | 1985-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |