GB2138357A - Improvements in adhesive sheets - Google Patents
Improvements in adhesive sheets Download PDFInfo
- Publication number
- GB2138357A GB2138357A GB08405798A GB8405798A GB2138357A GB 2138357 A GB2138357 A GB 2138357A GB 08405798 A GB08405798 A GB 08405798A GB 8405798 A GB8405798 A GB 8405798A GB 2138357 A GB2138357 A GB 2138357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- sheeting according
- apertures
- sheeting
- layer
- 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
- 239000000853 adhesive Substances 0.000 title claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 title claims description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 238000004078 waterproofing Methods 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 32
- 239000012792 core layer Substances 0.000 claims description 8
- 239000000123 paper Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 1
- 229920006255 plastic film Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010426 asphalt Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different 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
- 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
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/12—Roof covering by making use of flexible material, e.g. supplied in roll form specially modified, e.g. perforated, with granulated surface, with attached pads
-
- 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)
Abstract
A laminated sheeting for roofing, especially for flat roofs, to replace labour-intensive and costly built-up roof structures is composed of a central core of plastics film having a layer of self-adhesive bituminous waterproofing compound on each side, with one of the exposed surfaces of the compound carrying a sheet with apertures covering 10 to 50% of its area. The laminate can bond to a roof structure by adhesion of the bituminous compound in the area of the apertures, and the unbonded region permits water vapour to escape.
Description
SPECIFICATION
Improvements in adhesive sheets
This invention concerns improvements in adhesive sheets, more especially it concerns improvements in adhesive roofing sheets.
Conventionally, the most common method of providing a waterproof flat roof for buildings is by building up layers of waterproofing membranes and reinforcements. The waterproofing membrane is generally bitumen, applied manually by spreading molten bitumen over a base layer or base structure.
It is difficult to ensure an even and complete layer of bitumen and bonding between the layer and the base layer or structure and jointing between adjacent areas of the layer; certainly some problems are caused by cooling and hardening of the bitumen during application. Not only is the application of bitumen layers very labour intensive but also the inherent unreliability of the waterproofing necessitates the application of many layers in the typical "built-up" roof. Preformed sheeting comprises a support sheet of plastics, a metal foil, roofing felt or the like, with a bonded waterproofing layer of self-adhesive bituminous compound, have been marketed, although the major usuage has been in waterproofing foundations and below-ground structures, some have been proposed for and used as a top layer or other layers in a built-up roof.
Since the energy crisis of the 1970's, much greater attention has been paid to insulating buildings.
Despite the advantages in energy savings, problems do arise because the temperature difference between the "outside" and "inside" of the insulating layer can cause condensation of water vapour permeating the insulating layer. Inadequate ventilation, perhaps aggravated by substantially totally impermeable waterproof built-up roofs, can lead to rot, decay and degredation of the building structure, and/or bubbling and cracking of the bitumen layers.
The present invention aims to provide a laminated waterproofing structure for roofs which substantially simplifies the construction of reliable waterproof roofs. The invention provides a laminated sheeting comprising a core layer of synthetic plastics film, having on each face thereof a pressure-sensitive adhesive and waterproofing layer of a bituminous compound, one of said adhesive and waterproofing layers having adhered thereto on the surface remote from the core layer, a continuous or discontinuous apertured sheet in which the apertures form 10 to 50% of the overall area of the sheet, said apertured sheet being substantially impervious to the bituminous compound except where there is an aperture, whereby the bituminous compound of said one layer is capable of bonding to a substrate in the area of said apertures.Preferably, the exposed surfaces of the adhesive and waterproofing layers carries a strippable release sheet to protect the laminate storage and handling.
The central core layer is suitably a polyolefin, including polyethylene, polypropylene and copolymers, or a polyvinyl chloride or polyester film.
The core layer must be 0.020 to 0.250 mm thick.
The pressure-sensitive adhesive and waterproofing layer is suitably a tacky compounded bitumen.
The bitumen may be a straight or, preferably, blown, bitumen, compounded with a polymer and optionally with other components including tackifiers, extenders, fillers, pigments and oils to give a material which is waterproof and will adhere strongly to materials such as concrete when moderate pressure, such as can be applied manually, is applied. Preferably, the polymer in the compound is a rubber, and maybe a naturai or synthetic rubber. Each layer is suitably 0.5 to 5 mm thick.
The apertured sheet is preferably a sheet of plastics film such as polyolefin, PVC or polyester, paper such as kraft paper or building paper, metal such as aluminium or copper foil or sheet, our a woven or non-woven fabric of natural or, preferably, synthetic fibre, preferably a polymer or glass fibre non-woven fabric. The apertures are suitably regu larlyspaced and extend across the full area of the sheet; in a continuous apertured sheet they are conveniently round, rectangular or rhombic in shape and may be between 30 and 200 mm across. It is to be understood that a discontinuous apertured sheet may comprise discrete strips of the sheet extending over the area of the laminated sheeting.Conveniently the strips are applied parallel to the length of the sheeting, and are suitably 25 to 250mm wide, regularly spaced and leaving apertures or exposed bituminous compound in widths of suitably 30 to 200mm. It will also be understood that the layer of bituminous compound adhering to the apertured sheet can flow through the apertures under the application of moderate pressure and thus bond the laminated sheeting to a substrate. Accordingly, the apertured sheet should not be excessively thick and may conveniently be 0.020 to 3mm thick, preferably 0.05 to 0.5mm thick.
Preferably, both external faces of the laminated sheeting carry a release sheet; such sheets are well known and may conveniently be a silicone-treated paper or plastics film which is easily stripped from the adhesive and waterproofing compound immediately before use.
The laminated sheeting of the invention is preferably made up in rolls; for most uses where the rolls have to be handled and applied manually, suitable widths are 0.8 to 1 .2mm. The sheeting is applied to a roof deck or insulation layer so that the apertured sheet is in contact with the deck or insulation layer and bonded thereto by bituminous compound. The bituminous compound extends through the apertures but is sufficiently viscous so that it does not flow into the regions in which there are no apertures.
The apertured sheet permits the laminated sheeting to be bonded firmly to the roof structure but provides interconnecting areas in which there is no bonding, thus allowing water vapour to pass to the edge of the applied sheeting where it exits.
The top surface of the laminated sheeting is also adhesive after the release sheet is removed, and to this surface can be bonded a variety of materials including other conventional roofing materials such as felts, sheets, solar-reflective sheets or coatings and the like. The laminated sheeting is easily applied to a roof deck, insulation surface etc and adjacent strips of the sheeting can be overlapped without losing the characteristic of venting water vapour. To assist in laying and lapping adjoining strips, an edge of the upper release sheet may be separable or separate from the main part, to provide an adhesive selvage.
According to the invention, the laminated sheeting is able to provide a combination structure having means to allow water vapour to be vented, an extremely reliable composite waterproofing layer of two layers of bituminous compound and the intermediate core of plastics film and a top layer of permanently tacky adhesive. If desired, other layers, for example of reinforcing fabric may be included.
Substantial savings in labour costs may be achieved and the reliability of manufacturing the sheeting off-site in a factory promises a reduction in costly failures in waterproofing.
Claims (10)
1. A laminated sheeting comprising a core layer of synthetic plastics film, having on each face thereof a pressure-sensitive adhesive and waterproofing layer of bituminous compound, one of said adhesive and waterproofing layers having adhered tereto on the surface remote from the core layer, a continuous or discontinuous apertured sheet in which the apertures form 10 to 50% of the overall area of the sheet, said apertured sheet being substantially impervious to the bitumous compound except wherre there is an aperture, whereby the bituminous compound of said layer is capable of bonding to a substrate in the area of said apertures.
2. A sheeting according to claim 1, wherein the exposed surfaces of the adhesive and waterproofing layers carry a strippable release sheet.
3. A sheeting according to claim 1 or 2, wherein the apertured sheet is selected from sheets of plastic film, paper, metal and woven or non-woven fabrics.
4. A sheeting according to any one of the preceding claims, wherein the apertured sheet is of 0.020 to 3 mm thickness.
5. A sheeting according to any one of the preceding claims, wherein the apertured sheet has apertures between 30 and 200 mm across.
6. A sheeting according to any one of the preceding claims, in which the adhesive and waterproofing layers have a thickness in the range 0.5 to 5 mm.
7. A sheeting according to any one of the preceding claims, in which the core layer is a film of polyolefin, polyvinyl chloride or polyester.
8. A sheeting according to any one of the preceding claims, in which the core layer is 0.020 to 0.250 thick.
9. A sheeting according to claim 1, substantially as hereinbefore described.
10. A roofing structure comprising a sheeting according to any one of the preceding claims adhered to a substrate by means of the bituminous compound in the area of the apertures of the apertured sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08405798A GB2138357B (en) | 1983-04-15 | 1984-03-06 | Improvements in adhesive sheets |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB838310214A GB8310214D0 (en) | 1983-04-15 | 1983-04-15 | Adhesive sheets |
| GB08405798A GB2138357B (en) | 1983-04-15 | 1984-03-06 | Improvements in adhesive sheets |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8405798D0 GB8405798D0 (en) | 1984-04-11 |
| GB2138357A true GB2138357A (en) | 1984-10-24 |
| GB2138357B GB2138357B (en) | 1986-05-21 |
Family
ID=26285836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08405798A Expired GB2138357B (en) | 1983-04-15 | 1984-03-06 | Improvements in adhesive sheets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2138357B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625242A1 (en) * | 1987-12-24 | 1989-06-30 | Soprema Sa | ROOF SEALING SHEET |
| BE1001915A3 (en) * | 1987-05-21 | 1990-04-10 | Recticel Nv | Insulating roof sheet |
| GB2310814A (en) * | 1996-03-09 | 1997-09-10 | Chesterfelt Limited | Roofing felt |
| GB2347893A (en) * | 1999-03-05 | 2000-09-20 | Premier Coatings Ltd | Composite membrane |
| GB2377939A (en) * | 2001-07-26 | 2003-01-29 | Johnson & Johnson Medical Ltd | Apertured-sheet material |
| EP1741551A1 (en) * | 2005-07-04 | 2007-01-10 | MWK Entwicklungs GmbH | Multilayer film |
| EP3235637A1 (en) | 2016-04-21 | 2017-10-25 | ICOPAL DANMARK ApS | Cover laminate or coating system |
| DE102017124619A1 (en) | 2017-10-20 | 2019-04-25 | Icopal Kunststoffe Entwicklungs Gmbh | Bauwerksabdichtbahn and method for producing such |
-
1984
- 1984-03-06 GB GB08405798A patent/GB2138357B/en not_active Expired
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1001915A3 (en) * | 1987-05-21 | 1990-04-10 | Recticel Nv | Insulating roof sheet |
| FR2625242A1 (en) * | 1987-12-24 | 1989-06-30 | Soprema Sa | ROOF SEALING SHEET |
| GB2310814A (en) * | 1996-03-09 | 1997-09-10 | Chesterfelt Limited | Roofing felt |
| GB2310814B (en) * | 1996-03-09 | 1999-09-15 | Chesterfelt Limited | Roofing Material |
| GB2347893A (en) * | 1999-03-05 | 2000-09-20 | Premier Coatings Ltd | Composite membrane |
| GB2347893B (en) * | 1999-03-05 | 2001-05-30 | Premier Coatings Ltd | Composite membrane |
| GB2377939A (en) * | 2001-07-26 | 2003-01-29 | Johnson & Johnson Medical Ltd | Apertured-sheet material |
| GB2377939B (en) * | 2001-07-26 | 2005-04-20 | Johnson & Johnson Medical Ltd | Apertured sheet materials |
| EP1741551A1 (en) * | 2005-07-04 | 2007-01-10 | MWK Entwicklungs GmbH | Multilayer film |
| EP3235637A1 (en) | 2016-04-21 | 2017-10-25 | ICOPAL DANMARK ApS | Cover laminate or coating system |
| DE102016107418A1 (en) | 2016-04-21 | 2017-10-26 | Icopal Danmark A/S | Cover laminate or coating system |
| US11053686B2 (en) | 2016-04-21 | 2021-07-06 | Icopal Danmark ApS | Cover laminate or cover layer system |
| DE102017124619A1 (en) | 2017-10-20 | 2019-04-25 | Icopal Kunststoffe Entwicklungs Gmbh | Bauwerksabdichtbahn and method for producing such |
| WO2019077107A1 (en) | 2017-10-20 | 2019-04-25 | Icopal Kunststoffe Entwicklungs Gmbh | BAUWERKSABDICHTBAHN AND METHOD FOR MANUFACTURING SUCH A |
| US11298923B2 (en) | 2017-10-20 | 2022-04-12 | Bmi Steildach Gmbh | Edifice sealing web, and process for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8405798D0 (en) | 1984-04-11 |
| GB2138357B (en) | 1986-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930306 |