CA1143532A - Roof insulating construction and method - Google Patents
Roof insulating construction and methodInfo
- Publication number
- CA1143532A CA1143532A CA000365506A CA365506A CA1143532A CA 1143532 A CA1143532 A CA 1143532A CA 000365506 A CA000365506 A CA 000365506A CA 365506 A CA365506 A CA 365506A CA 1143532 A CA1143532 A CA 1143532A
- Authority
- CA
- Canada
- Prior art keywords
- thermal insulating
- layer
- insulating layer
- roof
- layers
- 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.)
- Expired
Links
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 15
- 239000012528 membrane Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000015556 catabolic process Effects 0.000 claims abstract description 6
- 238000006731 degradation reaction Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 52
- 239000011241 protective layer Substances 0.000 abstract description 9
- 238000001556 precipitation Methods 0.000 abstract description 5
- 238000010257 thawing Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 description 16
- 238000005188 flotation Methods 0.000 description 9
- 239000006260 foam Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920007962 Styrene Methyl Methacrylate Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1662—Inverted roofs or exteriorly insulated roofs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
Abstract A roof insulating construction comprises a thermal insulating layer above a water impermeable membrane over a horizontal roof deck. The thermal insulating layer is detached from the membrane and capable of floating on water which collects on the membrane as a result of precipitation or thawing of accumulated ice and snow. The thermal insulating layer may comprise a plurality of adjacent water impermeable thermal insulating sheets. The layer of thermal insulating sheets may be fastened to another adjacent layer of thermal insulating sheets in such a way that the layers are mechanically cohesive. A netting may overlay and may be fastened to a layer of thermal insulating sheets to hold them together.
Above the sheets is a protective layer of a weight which prevents the thermal insulating layer or layers from being displaced by wind forces but allows the thermal insulating layer or layers to float on said water. The protective layer may also be sufficiently opaque to protect the insulating layer or layers from exposure to and consequent degradation by sunlight.
Above the sheets is a protective layer of a weight which prevents the thermal insulating layer or layers from being displaced by wind forces but allows the thermal insulating layer or layers to float on said water. The protective layer may also be sufficiently opaque to protect the insulating layer or layers from exposure to and consequent degradation by sunlight.
Description
~3S3Z
Roof Insulation Construction and Method This invention relates to a roof insulation construction and a method for the construction of insulated roofs.
Built-up roofing has been employed for many years wherein flat roofs have been made water-tight by the application of a water-proof membrane to a roof deck. Such a membrane often consists of a plurality of felt bitumen layers, plasticized synthetics, sheet rubber or liquid-applied membranes. Where a predetermined thermal resistance is desired, appropriate insulation is often installed beneath the membrane but above the roof deck, the insulation often being protected from interior moisture vapour migration by the use of a vapour retarder or barrier placed between the insulation and the roof deck.
In more recent years, a protected roof membrane system has been used. In this system, the water-proof membrane is placed directly over the structural deck and the insulation is placed over it on the weather side. This method makes unnecessary the use of a vapour retarder since the water-proof membrane performs that role as well as that of the water barrier. However, the insulation must be prevented from displacement by wind or flotation forces and may have to be protected from degradation by sunlight.
Vertical displacement of the insulation is prevented by the use of sufficient ballast weighting material such as crushed stone or the like placed on top of the insulation. The effect of this weighting material is sometimes increased by adhesion of the ~ .
.
~ ~353Z
insulation to the under]ying membrane. The weighting material is sufficient to offset the flotation effect on the insulation oE
accumulated water and to compensate for loss of ballast weight due to flotation forces on the crushed stone itself should it become submerged. While such ballast usually provides acceptable sunlight protection, its weight, particularly where insulation thickness is great, makes significant strength demands on the structural deck.
Although the flotation forces often greatly exceed the disruptive effect of wind force, the flotation effect occurs only during occasional periods of intense precipitation or thawing of ice and snow. To provide a protected roof membrane system, this occasional demand caused by intense precipitation or thawing of accumulated ice and snow requires additional ballast and consequential increased deck strength requirements resulting in higher construction costs.
According to the present invention, there is provided a roof insulating construction which is not displaced by wind but can float during those occasional periods of intense precipitation or thawing of ice and snow. Such a construction returns to its original position when the flotation force has subsided after the drainage or evaporation of the accumulated water. Such a roof insulating construction requires only sufficient ballast to prevent the thermal insulation from being blown away. Optimally, the ballast is sufficient to protect the thermal insulation from exposure to and consequent degradation by sunlight. Savings result from the fact that additional ballast is not required to counteract the occasional flotation forces, and a consequential decrease in roof deck strength can be accommodated.
The present invention consists of a roof insulating construction comprising a horizontal roof deck; a water impermeable membrane over the roof deck; a thermal insulating layer above and detached from the membrane, and capable of floating on water which collects ~1L?~3~32 on the membrane; and a layer of protective material, of a weight which prevents the thermal insulating layer from ~eing displaced by wind forces but allows the thermal insulating layer to float on said water.
The invention also consists of a method of fabricating an insulated rooE construction by laying a water impermeable membrane over a horizontal roof deck; laying over the membrane a thermal insulating layer detached from the membrane and capable of floating on water which collects on the membrane; and applying over the thermal insulating layer a layer of protective material of a weight which prevents the thermal insulating layer from belng displaced by the wind forces but allows the thermal insulating layer to float on said water.
Preferred embodiments of the invention are illustrated in the drawings wherein:
Figure 1 is a cut-away, isometric view of a roof structure employing multiple layers of thermal insulating sheets; and Figure 2 is a cut-away isometric view of a roof structure using a netting overlaying a single layer of thermal insulating sheets.
In Figure 1, there is illustrated a roof deck 10. A water impermeable membrane 12 is secured over the upper surface 14 of the roof deck 10. Two insulating layers, namely, a lower layer 16 and an upper layer 18 rest on the membrane 12. Each of the lower insulating layer 16 and upper insulating layer 18 consists of a plurality of adjacent impermeable thermal insulating sheets 20, with fissures 22 between the individual sheets of a layer 20.
In this embodiment, the upper insulating layer 18 overlies the lower insulating layer 16 in a right angled arrangement with overlapping joints 24 so that once fastened together the two , 30 layers are cohesive and function mechanically as a single layer ~4353'~
so as not to disassemble under normal flotation Eorces. The lower surface of the lower insulating layer 26 rests on but is detached from the underlying water impermeable membrane 12 in such a fashion that no bond can or will develop.
The thermal insulating layers may be fastened to each other by screws, nails, pins, waterproof adhesive materials or otherwise.
A preferred device is a pin 28 made of injection molded high density polyethylene.
In another embodiment, illustrated in Figure 2, a water impermeable membrane 32 is secured over the upper surface 34 of the roof deck 36. A single thermal insulating layer 38 rests on the membrane 32.
The insulating layer 38 consists of a plurality of adjacent impermeable thermal insulating sheets 40, with fissures 42 between the individual sheets 40.
In this embodiment, a netting 44 overlies the thermal insulating layer 38. The netting 44 is preferably non rotting. The netting 44 may be fastened to the insulating layer 38 in such a manner to make the insulating layer 38 and the netting 44 function as a mechanically cohesive unit so as not to disassemble under normal flotation forces. Where the netting is fastened to the thermal insulating layer, a preferred device is a pin 28 made of injection molded high density polyethylene. The bottom surface of the thermal insulating layer 46 rests on but is detached from the under-lying water impermeable membrane 32 in such a fashion that no bond can or will develop.
In either embodiment, that shown in either Figure 1 or in Figure 2, a protective layer 50 is applied to the upper surface of the upper insulating layer 18 or the netting 44, as the case may be, to weigh down the insulating layer(s). This protective layer 50 is of a weight which prevents the thermal insulating layer(s) from being displaced by wind forces but allows the thermal insulating layer(s) to float. The protective layer 50 may also be of sufficient opaqueness to protect the thermal lnsulating layer(s) from exposure to and consequent degradation by sunlight.
The netting 4~ has a mesh size such that the protective layer 50 cannot pass through it to enter insulation fissures 22 and cause wedging displacement. The netting assembly, as depicted in the embodiment of Figure 2, is not limited to a single thermal insulating layer but may be utilized for multiple layers as in the embodiment of Figure 1. A preferred device for the fastening of the netting to a thermal insulating layer is a pin 28 made of injection molded high density polyethylene.
A wide variety of materials may be employed in the preparation of insulated roof structures in accordance with the con~truction and the method of the present invention.
The roof deck or roof support means may be of any construction of adequate strength.
The water impermeable membrane may consist of conventional asphaltic and bituminous compositions employed for roofing as well as laminates of the bituminous material with fibrous products such as roofing felts employing organic or inorganic fibre. Beneficially such felt and bituminous materials may be applied in alternating layers to provide a water impermeable membrane of the desired thickness and mechanical strength.
The thermal insulating sheets are preferably of a closed cell configuration and are water resistant and water impermeable.
Particularly beneficial and advantageous for use in the present invention are cellular plastic foams of a closed cell configuration including styrene polymer foams, styrene-acrylonitrile copolymer foams, styrene-methylmethacrylate copolymer foams, polyvinylchloride foams, polyethylene foams and other water impermeable materials available in cellular foam form which are well known in the art. Foam glass can also be ~1~3532 advantageously used as the thermal insulating material. Synthe-tic resinous organic cellular thermal insulation is generally subjected to decomposition when exposed to weather and more particularly when exposed to sunlight.
The protective layer may beneficially comprise particulate inorganic material such as gravel or crushed stone. The ballast type may vary on the same assembly. For example, paving blocks may be used around projections and roof edges while stone ballast may be used elsewhere.
In either of the preferred embodiments illustrated, during a period of water collection on the underlying membrane caused by intense precipitation or thawing of accumulated ice or snow, the detached portion of the roof insulating construction acts as a raft. In the first preferred embodiment, the thermal insulating layers and the protective layer, and, in the alternate preferred embodiment, the thermal insulating layer or layers, the netting and the protective layer, rise and float on the accumulated water.
On draining, evaporation, and/or subsidence of the water, the floating elements return to their original positions.
In either of the preferred embodiments illustrated, lateral restraint is provided for the floating elements by a parapet or like structural element (not shown) erected at the edges of the roof in accordance with standard construction practice.
Roof Insulation Construction and Method This invention relates to a roof insulation construction and a method for the construction of insulated roofs.
Built-up roofing has been employed for many years wherein flat roofs have been made water-tight by the application of a water-proof membrane to a roof deck. Such a membrane often consists of a plurality of felt bitumen layers, plasticized synthetics, sheet rubber or liquid-applied membranes. Where a predetermined thermal resistance is desired, appropriate insulation is often installed beneath the membrane but above the roof deck, the insulation often being protected from interior moisture vapour migration by the use of a vapour retarder or barrier placed between the insulation and the roof deck.
In more recent years, a protected roof membrane system has been used. In this system, the water-proof membrane is placed directly over the structural deck and the insulation is placed over it on the weather side. This method makes unnecessary the use of a vapour retarder since the water-proof membrane performs that role as well as that of the water barrier. However, the insulation must be prevented from displacement by wind or flotation forces and may have to be protected from degradation by sunlight.
Vertical displacement of the insulation is prevented by the use of sufficient ballast weighting material such as crushed stone or the like placed on top of the insulation. The effect of this weighting material is sometimes increased by adhesion of the ~ .
.
~ ~353Z
insulation to the under]ying membrane. The weighting material is sufficient to offset the flotation effect on the insulation oE
accumulated water and to compensate for loss of ballast weight due to flotation forces on the crushed stone itself should it become submerged. While such ballast usually provides acceptable sunlight protection, its weight, particularly where insulation thickness is great, makes significant strength demands on the structural deck.
Although the flotation forces often greatly exceed the disruptive effect of wind force, the flotation effect occurs only during occasional periods of intense precipitation or thawing of ice and snow. To provide a protected roof membrane system, this occasional demand caused by intense precipitation or thawing of accumulated ice and snow requires additional ballast and consequential increased deck strength requirements resulting in higher construction costs.
According to the present invention, there is provided a roof insulating construction which is not displaced by wind but can float during those occasional periods of intense precipitation or thawing of ice and snow. Such a construction returns to its original position when the flotation force has subsided after the drainage or evaporation of the accumulated water. Such a roof insulating construction requires only sufficient ballast to prevent the thermal insulation from being blown away. Optimally, the ballast is sufficient to protect the thermal insulation from exposure to and consequent degradation by sunlight. Savings result from the fact that additional ballast is not required to counteract the occasional flotation forces, and a consequential decrease in roof deck strength can be accommodated.
The present invention consists of a roof insulating construction comprising a horizontal roof deck; a water impermeable membrane over the roof deck; a thermal insulating layer above and detached from the membrane, and capable of floating on water which collects ~1L?~3~32 on the membrane; and a layer of protective material, of a weight which prevents the thermal insulating layer from ~eing displaced by wind forces but allows the thermal insulating layer to float on said water.
The invention also consists of a method of fabricating an insulated rooE construction by laying a water impermeable membrane over a horizontal roof deck; laying over the membrane a thermal insulating layer detached from the membrane and capable of floating on water which collects on the membrane; and applying over the thermal insulating layer a layer of protective material of a weight which prevents the thermal insulating layer from belng displaced by the wind forces but allows the thermal insulating layer to float on said water.
Preferred embodiments of the invention are illustrated in the drawings wherein:
Figure 1 is a cut-away, isometric view of a roof structure employing multiple layers of thermal insulating sheets; and Figure 2 is a cut-away isometric view of a roof structure using a netting overlaying a single layer of thermal insulating sheets.
In Figure 1, there is illustrated a roof deck 10. A water impermeable membrane 12 is secured over the upper surface 14 of the roof deck 10. Two insulating layers, namely, a lower layer 16 and an upper layer 18 rest on the membrane 12. Each of the lower insulating layer 16 and upper insulating layer 18 consists of a plurality of adjacent impermeable thermal insulating sheets 20, with fissures 22 between the individual sheets of a layer 20.
In this embodiment, the upper insulating layer 18 overlies the lower insulating layer 16 in a right angled arrangement with overlapping joints 24 so that once fastened together the two , 30 layers are cohesive and function mechanically as a single layer ~4353'~
so as not to disassemble under normal flotation Eorces. The lower surface of the lower insulating layer 26 rests on but is detached from the underlying water impermeable membrane 12 in such a fashion that no bond can or will develop.
The thermal insulating layers may be fastened to each other by screws, nails, pins, waterproof adhesive materials or otherwise.
A preferred device is a pin 28 made of injection molded high density polyethylene.
In another embodiment, illustrated in Figure 2, a water impermeable membrane 32 is secured over the upper surface 34 of the roof deck 36. A single thermal insulating layer 38 rests on the membrane 32.
The insulating layer 38 consists of a plurality of adjacent impermeable thermal insulating sheets 40, with fissures 42 between the individual sheets 40.
In this embodiment, a netting 44 overlies the thermal insulating layer 38. The netting 44 is preferably non rotting. The netting 44 may be fastened to the insulating layer 38 in such a manner to make the insulating layer 38 and the netting 44 function as a mechanically cohesive unit so as not to disassemble under normal flotation forces. Where the netting is fastened to the thermal insulating layer, a preferred device is a pin 28 made of injection molded high density polyethylene. The bottom surface of the thermal insulating layer 46 rests on but is detached from the under-lying water impermeable membrane 32 in such a fashion that no bond can or will develop.
In either embodiment, that shown in either Figure 1 or in Figure 2, a protective layer 50 is applied to the upper surface of the upper insulating layer 18 or the netting 44, as the case may be, to weigh down the insulating layer(s). This protective layer 50 is of a weight which prevents the thermal insulating layer(s) from being displaced by wind forces but allows the thermal insulating layer(s) to float. The protective layer 50 may also be of sufficient opaqueness to protect the thermal lnsulating layer(s) from exposure to and consequent degradation by sunlight.
The netting 4~ has a mesh size such that the protective layer 50 cannot pass through it to enter insulation fissures 22 and cause wedging displacement. The netting assembly, as depicted in the embodiment of Figure 2, is not limited to a single thermal insulating layer but may be utilized for multiple layers as in the embodiment of Figure 1. A preferred device for the fastening of the netting to a thermal insulating layer is a pin 28 made of injection molded high density polyethylene.
A wide variety of materials may be employed in the preparation of insulated roof structures in accordance with the con~truction and the method of the present invention.
The roof deck or roof support means may be of any construction of adequate strength.
The water impermeable membrane may consist of conventional asphaltic and bituminous compositions employed for roofing as well as laminates of the bituminous material with fibrous products such as roofing felts employing organic or inorganic fibre. Beneficially such felt and bituminous materials may be applied in alternating layers to provide a water impermeable membrane of the desired thickness and mechanical strength.
The thermal insulating sheets are preferably of a closed cell configuration and are water resistant and water impermeable.
Particularly beneficial and advantageous for use in the present invention are cellular plastic foams of a closed cell configuration including styrene polymer foams, styrene-acrylonitrile copolymer foams, styrene-methylmethacrylate copolymer foams, polyvinylchloride foams, polyethylene foams and other water impermeable materials available in cellular foam form which are well known in the art. Foam glass can also be ~1~3532 advantageously used as the thermal insulating material. Synthe-tic resinous organic cellular thermal insulation is generally subjected to decomposition when exposed to weather and more particularly when exposed to sunlight.
The protective layer may beneficially comprise particulate inorganic material such as gravel or crushed stone. The ballast type may vary on the same assembly. For example, paving blocks may be used around projections and roof edges while stone ballast may be used elsewhere.
In either of the preferred embodiments illustrated, during a period of water collection on the underlying membrane caused by intense precipitation or thawing of accumulated ice or snow, the detached portion of the roof insulating construction acts as a raft. In the first preferred embodiment, the thermal insulating layers and the protective layer, and, in the alternate preferred embodiment, the thermal insulating layer or layers, the netting and the protective layer, rise and float on the accumulated water.
On draining, evaporation, and/or subsidence of the water, the floating elements return to their original positions.
In either of the preferred embodiments illustrated, lateral restraint is provided for the floating elements by a parapet or like structural element (not shown) erected at the edges of the roof in accordance with standard construction practice.
Claims (22)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A roof insulating construction comprising:
a horizontal roof deck;
a water impermeable membrane over the roof deck;
a thermal insulating layer above and detached from the membrane and capable of floating on water which collects on the membrane; and a layer of protective material of a weight which prevents the thermal insulating layer from being dis-placed by wind forces but allows the thermal insulating layer to float on said water.
a horizontal roof deck;
a water impermeable membrane over the roof deck;
a thermal insulating layer above and detached from the membrane and capable of floating on water which collects on the membrane; and a layer of protective material of a weight which prevents the thermal insulating layer from being dis-placed by wind forces but allows the thermal insulating layer to float on said water.
2. The roof insulating construction of claim 1, wherein the thermal insulating layer comprises a plurality of adjacent water impermeable sheets.
3. The roof insulating construction of claim 1, wherein the layer of protective material is of sufficient opaqueness to protect the thermal insulating layer from exposure to and consequent degradation by sunlight.
4. The roof insulating construction of claim 1, including another layer of thermal insulating sheets, overlying the first mentioned layer, the two layers having overlapping joints.
5. The roof insulating construction of claim 4, wherein the thermal insulating layers are fastened to make them mechanically cohesive.
6. The roof insulating construction of claim 1, including a netting laid over the thermal insulating layer and below the layer of protective material to hold the thermal insulating sheets together.
7. The roof insulating construction of claim 4, including a netting laid over the thermal insulating layers and below the layer of protective material to hold the thermal insulating sheets together.
8. The roof insulating construction of claim 6, wherein the netting is fastened to the thermal insulating layer.
9. The roof insulating construction of claim 7, wherein the netting is fastened to a thermal insulating layer.
10. The roof insulating construction of claim 5, wherein the thermal insulating layers are fastened together by pins.
11. The roof insulating construction of claim 8 or 9, wherein the netting is fastened to the thermal insulating layer or layers by pins.
12. A method of fabricating an insulated roof construction by laying a water impermeable membrane over a horizontal roof deck; laying over the membrane a thermal insulating layer which is detached from the membrane and capable of floating on water which collects on the membrane; and applying over the thermal insulating layer a layer of protective material of a weight which prevents the thermal insulating layer from being displaced by wind forces but allows the thermal insulating layer to float on said water.
13. The method of claim 12, wherein the thermal insulating layer comprises a plurality of adjacent water impermeable sheets.
14. The method of claim 12, wherein the layer of protective material is of sufficient opaqueness to protect the thermal insulating layer from exposure to and consequent degradation by sunlight.
15. The method of claim 12, including laying another layer of thermal insulating sheets over the first mentioned layer, the two layers having overlapping joints.
16. The method of claim 15, including fastening together the thermal insulating layers to make them mechanically cohesive.
17. The method of claim 12, including laying a netting over the thermal insulating layer and below the layer of protective material to hold the thermal insulating sheets together.
18. The method of claim 15, including laying a netting over the thermal insulating layers and below the layer of protective material to hold the thermal insulating sheets together.
19. The method of claim 17, including fastening the netting to the thermal insulating layer.
20. The method of claim 18, including fastening the netting to a thermal insulating layer.
21. The method of claim 16, including fastening the thermal insulating layers together by pins.
22. The method of claim 19 or 20, including fastening the netting to the thermal insulating layer or layers by pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000365506A CA1143532A (en) | 1980-11-26 | 1980-11-26 | Roof insulating construction and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000365506A CA1143532A (en) | 1980-11-26 | 1980-11-26 | Roof insulating construction and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1143532A true CA1143532A (en) | 1983-03-29 |
Family
ID=4118553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000365506A Expired CA1143532A (en) | 1980-11-26 | 1980-11-26 | Roof insulating construction and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1143532A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882888A (en) * | 1988-11-14 | 1989-11-28 | Dryvit System, Inc. | Laminated wall construction |
| CN103161265A (en) * | 2013-03-05 | 2013-06-19 | 深圳市建筑科学研究院有限公司 | Water storage roof capable of supporting person |
| US9719247B2 (en) | 2013-11-08 | 2017-08-01 | Piotr Robert Tauferner | Reinforced water-resistant board with traffic coat |
| US10344469B2 (en) | 2013-11-08 | 2019-07-09 | Piotr Robert Tauferner | Reinforced water-resistant board with traffic coat |
-
1980
- 1980-11-26 CA CA000365506A patent/CA1143532A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882888A (en) * | 1988-11-14 | 1989-11-28 | Dryvit System, Inc. | Laminated wall construction |
| CN103161265A (en) * | 2013-03-05 | 2013-06-19 | 深圳市建筑科学研究院有限公司 | Water storage roof capable of supporting person |
| CN103161265B (en) * | 2013-03-05 | 2015-06-10 | 深圳市建筑科学研究院股份有限公司 | Water storage roof capable of supporting person |
| US9719247B2 (en) | 2013-11-08 | 2017-08-01 | Piotr Robert Tauferner | Reinforced water-resistant board with traffic coat |
| US10344469B2 (en) | 2013-11-08 | 2019-07-09 | Piotr Robert Tauferner | Reinforced water-resistant board with traffic coat |
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