GB2161749A - Roofing method - Google Patents
Roofing method Download PDFInfo
- Publication number
- GB2161749A GB2161749A GB08418629A GB8418629A GB2161749A GB 2161749 A GB2161749 A GB 2161749A GB 08418629 A GB08418629 A GB 08418629A GB 8418629 A GB8418629 A GB 8418629A GB 2161749 A GB2161749 A GB 2161749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- felt
- absorbent material
- sheet
- roofing
- bonded
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 63
- 230000002745 absorbent Effects 0.000 claims abstract description 38
- 239000002250 absorbent Substances 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 239000011810 insulating material Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000010426 asphalt Substances 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims abstract description 8
- 238000005187 foaming Methods 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 11
- 230000035515 penetration Effects 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920000582 polyisocyanurate Polymers 0.000 claims description 5
- 239000011495 polyisocyanurate Substances 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000002759 woven fabric Substances 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- 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
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/358—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation with at least one of the layers being offset with respect to another layer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D7/00—Roof covering exclusively consisting of sealing masses applied in situ; Gravelling of flat roofs
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- 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
- B32B2419/00—Buildings or parts thereof
- B32B2419/06—Roofs, roof membranes
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
A method of roofing comprises the steps of assembling sheets of a laminate comprising a layer of thermal insulating material 5 e.g. a foamed plastics material bonded to a layer of absorbent material 6, e.g. a non-woven felt or open-celled foam, impregnating the absorbent material with a settable liquid composition 8 e.g. bitumen and allowing the composition to set forming a monolithic weatherproof covering for the roof. <IMAGE>
Description
SPECIFICATION
Method of roofing and material therefor
This invention relates to a method of roofing and a material for use in performance of the method.
According to a first aspect of the present invention a method of roofing comprises the steps of assembling sheets of a laminate comprising a layer of thermal insulating material bonded to a layer of absorbent material, impregnating the absorbent material, with a settable liquid composition and allowing the composition to set forming a monolithic weatherproof covering for the roof.
The settable liquid composition preferably comprises bitumen or a polyester compound although rubber, plastics or other material known to those skilled in the art may be used.
The thermal insulating material may comprise a foamed plastics material. Polyurethane is preferred although polyisocyanurate, polystyrene, polyvinyl chloride or phenolic resin may also be used. Mineral fibres may be used in place of the foamed plastic material.
The absorbent material preferably comprises a non-woven material felt or open-celled foam. The absorbent material should withstand the application of the liquid composition for example bitumen is applied at a temperature of 230 C. Use of a felt is preferred, composed for example from polyester fibres.
The absorbent material may be bonded to a foamed insulating material during the foaming of the latter the foam being allowed to penetrate a proportion of the absorbent material before curing.
Excessive penetration of the absorbent material may be prevented by use of a permeable sheet such as a sheet of glass fibre tissue disposed upon or beneath the absorbent material as disclosed in our copending United Kingdom Patent Application
No. 8406720.
Alternatively the layers may be bonded by an adhesive.
According to the second aspect of the present invention a roofing material comprises a laminate as hereinbefore described.
The invention is further described by means of example, and not in any limitative sense, with reference to the accompanying drawings, of which:
Figure 1 shows a sheet for use in accordance with the invention; and
Figure 2 is-a cross section through roofing constructed in accordance with this invention.
The sheet shown in Figure 1 comprises a laminate of foamed polyurethane 1 bonded to a sheet of polyester felt 2. The felt is bonded to the polyurethane by limited penetration of the latter during foaming. Excessive penetration by the foaming prepolymer is prevented by placing a sheet 3 of permeable material such as glass-fibre tissue adjacent to the surface of the felt. The foaming of prepolymer which has penetrated the sheet 3 may displace the latter slightly from the felt as shown in the Figure. The sheet 3 may alternatively comprise polyester or other woven or non-woven fabric. Use of the permeable sheet 3 has the additional advantage of enabling the foaming layer to be tensioned in order to maintain planarity of the product.
The foamed plastics material may alternatively comprise polyisocyanurate, polystyrene, phenolic resin or polyvinyl chloride.
As a further alternative the layer 1 may comprise mineral fibres bonded to the felt by means of an adhesive.
Any convenient absorbent material may be used in place of the felt 2. It is preferred that the material can withstand the conditions, such as high temperature, at which the settable composition may be applied and which may be met in service.
Any non- woven or woven felt may be used. Open celled foam may also be employed. The absorbent material is preferably non-rigid to allow the product to flex in use to compensate for thermal and mechanical movements. Resistance to biological degradation is also preferred.
The felt is preferably composed of fibres having a minimum length of 5mm, more preferably 1cm.
A minimum aspect ratio of 100 is preferred. The felt preferably has a weight not less and 75gm-2, more preferably not less than 150gm-2 in order to avoid excessive penetration by the foaming polymer. It is preferred that the weight is not more than 500gm-2.
A thickness of the felt of 0.5 to 5mm may be preferred. A first embodiment has a thickness of 1.5 to 2mm while a second embodiment has a thickness of 3 to 4.5mm.
The absorbent material 2 may overhang two sides 4 of the sheet 1 so that abutments between adjacent sheets are covered.
Figure 2 shows a roof constructed in accordance with the method.
In performance of the method the sheets 1 are assembled to form a covering for the roof, the overhanging absorbent layers 6 interlocking to cover the interstices 7 between the sheets 1.
The sheets 1 may be bonded, nailed or otherwise secured to roof decks as they are assembled.
Bitumen 8 or another settable composition is then poured onto the absorbent layer, penetrating the latter and forming, when set, a monolithic covering for the roof.
1. A method of roofing comprising the steps of: assembling sheets of a laminate comprising a layer of thermal insulating material bonded to a layer of absorbent material, impregnating the absorbent material with a settable liquid composition and allowing the composition to set forming a monolithic weatherproof covering for the roof.
2. A method as claimed in claim 1, wherein the settable liquid composition comprises bitumen, rubber, a polyester compound, or other plastics material.
3. A method as claimed in claim 1 or 2, wherein the insulating material comprises a foamed plastics material.
4. A method as claimed in claim 3, wherein the
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (13)
1. A method of roofing comprising the steps of: assembling sheets of a laminate comprising a layer of thermal insulating material bonded to a layer of absorbent material, impregnating the absorbent material with a settable liquid composition and allowing the composition to set forming a monolithic weatherproof covering for the roof.
2. A method as claimed in claim 1, wherein the settable liquid composition comprises bitumen, rubber, a polyester compound, or other plastics material.
3. A method as claimed in claim 1 or 2, wherein the insulating material comprises a foamed plastics material.
4. A method as claimed in claim 3, wherein the foamed plastics material is selected from: polyurethane, polyisocyanu rate, polystyrene polyvinyl chloride or phenolic resin.
5. A method as claimed in claim 1 or 2, wherein the insulating material comprises mineral fibres.
6. A method as claimed in any preceding claim, wherein the absorbent material comprises a nonwoven material or open-celled foam.
7. A method as claimed in claim 6, wherein the absorbent material comprises a felt.
-
8. A method as claimed in claim 7, wherein the absorbent material comprises polyester felt.
9. A method as claimed in claim 3, wherein foaming insulating material is allowed to penetrate a proportion of the absorbent material before curing of the insulating material
10. A method as claimed in claim 9, wherein a permeable sheet is disposed on or beneath the absorbent material.
11. A method of roofing substantially as hereinbefore described with reference to the accompanying drawings.
12. A roofing material comprising a laminate of a layer of thermal insulating material bonded to a layer of absorbent material.
13. A roofing material substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08418629A GB2161749A (en) | 1984-07-20 | 1984-07-20 | Roofing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08418629A GB2161749A (en) | 1984-07-20 | 1984-07-20 | Roofing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8418629D0 GB8418629D0 (en) | 1984-08-22 |
| GB2161749A true GB2161749A (en) | 1986-01-22 |
Family
ID=10564242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08418629A Withdrawn GB2161749A (en) | 1984-07-20 | 1984-07-20 | Roofing method |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2161749A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998031895A1 (en) * | 1997-01-20 | 1998-07-23 | Rockwool Limited | Composite roof system |
| GB2349652A (en) * | 1999-03-04 | 2000-11-08 | Roger William Dodd | A method of padding a hard surface |
| US11008757B1 (en) | 2020-04-01 | 2021-05-18 | Decker Hall Innovations, LLC | Method for securing multiple layers of roofing materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1054684A (en) * | 1963-04-18 | |||
| GB1063463A (en) * | 1963-10-17 | 1967-03-30 | Chemotronics International Inc | Treatment of reticulated polyurethanes |
| GB1065994A (en) * | 1963-02-02 | 1967-04-19 | Reeves Bros Inc | Crushed polyurethane foam and method of making same |
| GB1069291A (en) * | 1963-04-29 | 1967-05-17 | Borden Chemical Company U K Lt | Improvements in or relating to adhesive compositions |
| GB1072395A (en) * | 1962-12-05 | 1967-06-14 | Werner Simon | A process for the production of composite elements |
-
1984
- 1984-07-20 GB GB08418629A patent/GB2161749A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1072395A (en) * | 1962-12-05 | 1967-06-14 | Werner Simon | A process for the production of composite elements |
| GB1065994A (en) * | 1963-02-02 | 1967-04-19 | Reeves Bros Inc | Crushed polyurethane foam and method of making same |
| GB1054684A (en) * | 1963-04-18 | |||
| GB1069291A (en) * | 1963-04-29 | 1967-05-17 | Borden Chemical Company U K Lt | Improvements in or relating to adhesive compositions |
| GB1063463A (en) * | 1963-10-17 | 1967-03-30 | Chemotronics International Inc | Treatment of reticulated polyurethanes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998031895A1 (en) * | 1997-01-20 | 1998-07-23 | Rockwool Limited | Composite roof system |
| GB2349652A (en) * | 1999-03-04 | 2000-11-08 | Roger William Dodd | A method of padding a hard surface |
| GB2349652B (en) * | 1999-03-04 | 2003-09-24 | Roger William Dodd | Padded surfaces |
| US11008757B1 (en) | 2020-04-01 | 2021-05-18 | Decker Hall Innovations, LLC | Method for securing multiple layers of roofing materials |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8418629D0 (en) | 1984-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |