GB2223248A - Insulation board for roofing - Google Patents
Insulation board for roofing Download PDFInfo
- Publication number
- GB2223248A GB2223248A GB8920347A GB8920347A GB2223248A GB 2223248 A GB2223248 A GB 2223248A GB 8920347 A GB8920347 A GB 8920347A GB 8920347 A GB8920347 A GB 8920347A GB 2223248 A GB2223248 A GB 2223248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- insulation
- repellent
- insulation board
- agent
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000005871 repellent Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- 239000011490 mineral wool Substances 0.000 claims abstract description 14
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical class COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- OEBRKCOSUFCWJD-UHFFFAOYSA-N dichlorvos Chemical compound COP(=O)(OC)OC=C(Cl)Cl OEBRKCOSUFCWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
- E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Laminated Bodies (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
An insulation board element for roofing is of mineral wool and comprises a surface layer containing an oil-repellent (olephobic) agent. This reduces penetration into the board of the molten bituminous binder which is used to adhere roofing felt to the insulation board. The oil-repellent may be introduced into a glass fibre fleece applied to the board.
Description
Insulating Layer
The present invention relates to an insulation board element of mineral wool.
It is known to prepare insulating roof coverings by placing an insulation layer of insulation board elements of mineral wool on a support and by attaching to the top side of the insulation layer a sheet material, e.g. in the form of a roofing felt layer, using a molten e.g bituminous binder.
If the roofing felt is provided in the form of a roll the attachment is conveniently effected by maintaining a sausage-like mass of the molten binder in front of the roll during the unrolling of said roofing felt onto the insulation layer. Thus the binder is pressed towards the insulation layer and consequently it is caused to form a continuous binder layer between the roofing felt and the insulation layer.
The viscosity of the molten, bituminous binder is highly temperature-dependent and in practice it is difficult to maintain optimum temperature conditions.
Therefore, the binder is often heated to a relatively high temperature and this causes the viscosity of the binder to drop rapidly. As a result, unduly large amounts of binder are absorbed by the relatively porous insulation layer.
In order to limit the absorption of binder by the insulation layer, attempts have been made to apply a fleece of fibres e.g. a glass fibre fleece onto the top side of the insulation board elements; however, this has not provided a fully satisfactory solution to the problem.
Surprisingly it has now been found that the absorption of molten, bituminous binder by the insulation layer may be reduced substantially using an insulation element which is according to the invention characterized in that it comprises a surface layer containing an oil-repellent (oleophobic) agent.
By using such insulation elements the penetration of the molten bituminous binder is limited to such an extent that prior to its absorption by the insulation elements the binder has been cooled off so much and thus has obtained such a high viscosity that it is no longer capable of penetrating the porous insulation material.
In practical tests a reduction in the consumption of molten bituminous binder of 40-50% has been achieved as compared with the amount consumed by using corresponding known insulation elements.
A further major advantage of the insulation elements according to the invention is that they provide an improved adhesion between the roofing felt layer and the insulation layer so that the strength of the covering becomes dependent on the resistance of the insulation layer to delamination rather than on the adhesion between roofing felt and insulation layer.
This has been illustrated by a test in which an aqueous dispersion of an oil-repellent agent was sprayed onto each of two mineral wool boards coated with a glass fibre fleece in an amount of 10 ml dispersion per m2.
The boards were subsequently placed in a heating chamber at 2000C for one hour.
50 g of bitumen of the type 95/35 was subsequently applied to the surface of each board at a temperature of 260iC and the time elapsing from the application of hot bitumen to the absorption of bitumen by the glass fibre fleece was determined. Furthermore, a blind test was performed. The results obtained were as follows:
Oil-reDellent anent Time of absorption sec.
"Scotchgards 270" 30 "Nuva FH" > 120
Blind test 12
As will appear from the above the absorption of bitumen is substantially delayed when treating the mineral wool fibre layer with the above commercially available oil-repellent agents.
Particularly preferred oil-repellent agents include polymers based on halogen containing monomers such as fluoro-substituted hydrocarbons or acrylic acid. Such oil-repellent agents are commercially available as dispersions under different trade names, such as "Scotchgards 270" containing a flouroalkyl copolymer mixture, "Foraperle T 145", "RB 148" and "RB 149" comprising a copolymer of flourine containing acrylic acid, and "Nuva FH" which is also based on a flourocopolymer.
The oil-repellent agent may constitute from 0.001 to 25 g of solid matter per m2 and preferably constitutes from 1,0 to 2,5 g of solid matter per m2.
The oil-repellent agent may be comprised in the insulating mineral wool material proper but in practice an insulation element coated with a glass fibre fleece containing the oil-repellent agent is preferred. Thus a particularly high reduction of the absorption of molten bituminous binder is obtained by attaching a roofing felt covering onto the top side of an insulation layer of such elements.
Moreover, the invention relates to a process for the production of a roofing board element of the kind described above. The process of the invention is characterized in providing a surface layer containing an oil-repellent (oleophopic) agent on one side of a board element.
The formation of said surface layer may be effected by application of the oil-repellent agent onto the final board element or onto the element during the production of same.
Application of the oil-repellent agent, which may e.g. be used in the form of an aqueous dispersion, onto the surface of the mineral wool fibre material proper or onto the surface of a glass fibre fleece may be effected by methods known Der se, e.g. by coating.
Preferably the application of the oil-repellent agent is carried out during the production of the insulation element and preferably prior to the introduction of the fibre sheet from which the mineral fibre element is made into a curing oven in which a curing of the heat curing binder previously added to the fibre sheet is effected. If application is carried out according to the latter method the oil-repellent agent should be stable at elevated temperatures, viz.
at temperatures above about 200'C.
In the production of the insulation board elements coated with a glass fibre fleece according to the above method, the oil repellent agent is preferably introduced into a binder which is applied to the underside of the glass fibre fleece using a roller applicator prior to the fleece being applied to the top side of a mineral fibre sheet and Drior to the introduction of said sheet mto tne cur ring oven.
The invention also relates to an insulating roof covering comprising a layer of insulation board elements of mineral wool and a layer of roofing felt attached to the top side of said layer by means of a thermoplastic, bituminous binder.
The roof coating is characterized in that the insulation board elements comprise a surface layer containing an oil-repellent (oleophobic) agent.
The invention will described more in detail with reference to the following example illustrating the production of a preferred insulation board element according to the invention.
Example
A mineral wool board was produced having the dimensions 1200x600x50 mm and a specific weight of 175 kg/m3. The mineral wool contained about 0.2% of oil.
8 1 of "Scotchgarde 270", 2 1 of ammonia (about 25%), and 10 1 of concentrated (305) binder consisting of a phenol formaldehyde resol were added to a feed vessel for a roller applicator. Subsequent to the addition of tScotchgarde 2709 and ammonia intensive stirring was carried out and after having obtained a homogenous compound the concentrated binder was added while stirring intensively.
2
A fleece of glass fibres weighing 60 g/m were passed through the applicator so as to form a coating 2 weighing about 35g/m on the underside of the fleece.
The fleece of glass fibres were subsequently placed on the mineral wool board and the resulting product was introduced into a curing oven maintained a temperature of about 2300C. After about 5 minutes in the curing oven the product was removed and cooled off to ambient temperature.
Claims (8)
1. Insulation board element of mineral wool, c h a r a c t e r i z e d in that it comprises a surface layer containing an oilrepellent (oleophobic) agent.
2. Insulation element according to claim 1 having one side thereof coated with a fleece of glass fibres, c h a r a c t e r i z e d in that the oil-repellent agent is contained in the glass fibre fleece.
3. Insulation element according to claim 1, c h a r a c t e r i z e d in that the oil-repellent agent comprises at least one polymer based on a halogen containing monomer.
4. Insulation element according to claim 3, c h a r a c t e r i z e d in that the oil-repellent agent comprises a polymer based on a monomer of a fluoro-substituted hydrocarbon or acrylic acid.
5. Insulation element according to any one of the preceding claims, c h a r a c t e r i z e d in that the oil-repellent agent is present in the element in an amount of between 1.0 and 2.5 g of solid matter per m2.
6. Process for the production of an insulation board element according to claim 1, c h a r a c t e r i z e d in forming a surface layer containing an oil-repellent (oleophobic) agent on one side of a board element of mineral wool.
7. Process according to claim 6 wherein one side of the insulation board element is coated with a fleece of glass fibres, c h a r a c t e r i z e d in that the oil-repellent agent is introduced into the glass fibre fleece.
8. Insulated roof covering comprising a layer of insulation board elements of mineral wool and a sheet material attached to the top side of said layer by means of a thermoplastic binder, c h a r a c t e r i z e d in that the insulation board elements comprise a surface layer containing an oil-repellent (oleophobic) agent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK502188A DK162299C (en) | 1988-09-09 | 1988-09-09 | PLATE-INSULATED INSULATION ELEMENT AND PROCEDURE FOR PREPARING SAME AND INSULATING ROOF COATING |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8920347D0 GB8920347D0 (en) | 1989-10-25 |
| GB2223248A true GB2223248A (en) | 1990-04-04 |
| GB2223248B GB2223248B (en) | 1992-08-19 |
Family
ID=8138723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8920347A Expired - Lifetime GB2223248B (en) | 1988-09-09 | 1989-09-08 | Insulating layer |
Country Status (2)
| Country | Link |
|---|---|
| DK (1) | DK162299C (en) |
| GB (1) | GB2223248B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0485277A1 (en) * | 1990-11-06 | 1992-05-13 | Isover Saint-Gobain | Mineral wool products for the cultivation of plants |
| WO1999009270A1 (en) | 1997-08-18 | 1999-02-25 | Rockwool International A/S | Roof and wall cladding |
| EP3341193B1 (en) | 2016-08-17 | 2020-10-14 | Knauf Insulation SPRL | Mineral wool insulation |
-
1988
- 1988-09-09 DK DK502188A patent/DK162299C/en active
-
1989
- 1989-09-08 GB GB8920347A patent/GB2223248B/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0485277A1 (en) * | 1990-11-06 | 1992-05-13 | Isover Saint-Gobain | Mineral wool products for the cultivation of plants |
| AU646697B2 (en) * | 1990-11-06 | 1994-03-03 | Saint-Gobain, Isover | Mineral wool products for the cultivation of plants |
| US5600919A (en) * | 1990-11-06 | 1997-02-11 | Isover Saint-Gobain | Mineral wool products for the cultivation of plants |
| WO1999009270A1 (en) | 1997-08-18 | 1999-02-25 | Rockwool International A/S | Roof and wall cladding |
| EP3341193B1 (en) | 2016-08-17 | 2020-10-14 | Knauf Insulation SPRL | Mineral wool insulation |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2223248B (en) | 1992-08-19 |
| DK162299C (en) | 1992-03-16 |
| DK502188A (en) | 1990-03-10 |
| DK502188D0 (en) | 1988-09-09 |
| GB8920347D0 (en) | 1989-10-25 |
| DK162299B (en) | 1991-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0259612B2 (en) | Reinforcing composite for roofing membranes and process for making such composites | |
| CA2564094C (en) | Improvement of shingle and mat tensile strength with urea formaldehyde resin modifier | |
| US5211988A (en) | Method for preparing a smooth surfaced tough elastomeric coated fibrous batt | |
| NO801363L (en) | GLASS FIBER MATERIAL AND PROCEDURE FOR ITS MANUFACTURING | |
| KR900005071B1 (en) | Dimensional stability carpet tiles | |
| RU2095251C1 (en) | Construction covering | |
| JP2775184B2 (en) | Latex bonded flame retardant material | |
| EP0179451B1 (en) | Method for adhering a coating material to a random-fiber composite sheet | |
| US3336185A (en) | Bonded glass fiber product and process of preparing same | |
| EP0539342B1 (en) | Glass fiber insulation and process | |
| HU228074B1 (en) | Mineral fibre insulating board and process for the preparation thereof | |
| GB2223248A (en) | Insulation board for roofing | |
| EP0030479B1 (en) | Conductive element and process for making the same | |
| US4107375A (en) | Bulky asphalt-impregnated sheet having different properties on both surfaces | |
| HU222226B1 (en) | Composite roof system | |
| WO1993006995A1 (en) | Method for fixing an edge list on a wood fibreboard and an edge list for making the method possible | |
| WO2005001199A1 (en) | Composite sheet material and process of making | |
| US2131085A (en) | Bituminous cement | |
| EP0694095B1 (en) | Method and apparatus for preparing a fibrous batt | |
| US4242393A (en) | Carpet tiles | |
| DE19581863D2 (en) | Flat composite insulation material system and method for its production | |
| US4291088A (en) | Foam products from furfuryl alcohol-amino-formaldehyde | |
| MX2008015437A (en) | Fiber mat with formaldehyde-free binder. | |
| US2690100A (en) | Method of producing fire-resistant inorganic fiber insulation | |
| RS50965B (en) | DESCRIPTION OF THE PROCEDURE OF THE PRODUCTION OF THERMOLETIC INTERMEDIATE AND THERMOLETIC INTERMEDIATE OBTAINED IN THIS WAY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050908 |