EP0138847A1 - Method for the making of self-plugging and/or non-dripping roofing construction. - Google Patents
Method for the making of self-plugging and/or non-dripping roofing construction.Info
- Publication number
- EP0138847A1 EP0138847A1 EP84900896A EP84900896A EP0138847A1 EP 0138847 A1 EP0138847 A1 EP 0138847A1 EP 84900896 A EP84900896 A EP 84900896A EP 84900896 A EP84900896 A EP 84900896A EP 0138847 A1 EP0138847 A1 EP 0138847A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roofing
- layer
- roofing construction
- dripping
- hydrophilic
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 11
- 229920001477 hydrophilic polymer Polymers 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- -1 organic felt Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 240000001058 Sterculia urens Species 0.000 description 1
- 235000015125 Sterculia urens Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 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
-
- 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
Definitions
- the invention relates to the making of self-plugging and/or non-dripping roofing construction.
- a modern roof design normally includes a structure to carry loads, insulation to control heat flow, a barrier to control air and vapour flow, and a roofing element to prevent water penetration.
- Built-up roofing is a continous membrane covering manufactures on site from alternate layers of bitumen, bitumen-saturated felts or asphalt-impregnated glass mats, saturated and coated felts, and surfacings.
- roofing membranes can also be liquid-applied as a single or two-component system with polymeric fabrics or glass-fibre reinforments. « hatever the type of roof and roofing construction and material used, water leaks and condensation can occur, particu ⁇ larly in the spring in cold climates when the snow on the roof.
- 2MPI is melting, or during so heavy rain falls that the roof-gutters cannot cope with the amount of water on the roof.
- Water leakage and dripping for roofing constructions can have considerable economic consequences, even when the amount of water is small, for instance because the leakage site is of very small size, perhaps only a small nail hole. It is also extremely difficult to locate such leakage sites, the more dif ⁇ ficult the smaller the leak.
- the object of the invention is to solve the above mentioned problems and to provide a method which makes it pos ⁇ sible to achieve a self-plugging, i.e. a self acting leak-stop ⁇ ping and/or non-dripping roofing construction.
- This object is achieved by a method in which a layer is incorporated in the roofing construction, which layer contains hydrophilic polymers and/or known inorganic viscosity- increasing and/or gel-forming hydrophilic substances.
- the invention also relates to a roofing construction provided with a layer of the above type.
- the present invention solves these problems in a simple and economic way by making use of the special properties which hydrophilic polymers and/or certain hydrophilic inorganic sub ⁇ stances possess for increasing the viscosity of water to such an extent that it will not drip from the roofing construction, and/or to bind the water in the form and consistency of a gel.
- Such polymers and inorganic substances can also by water be brought to swell to such an extent that a leakage is stopped by itself.
- the hydrophilic polymers which can be used with the method can either be water-soluble or water-swellable, or a combination of both. The same applies for the inorganic subs ⁇ tances.
- Water-soluble polymers and/or water-soluble inorganic substances of the mention type can be made non water-soluble through partial cross-linking, i.e. cross-linking which leaves a number of hydrophilic groups free to bind water molecules.
- hydrophilic polymers and/or inorganic hydrophfeic sub ⁇ stances can be incorporated in many different ways in the
- hydrophilic polymers which can be used for the method can be mentioned natural hydrophilic polymers such as gum arabic, traganth and karaya, semi-synthetic hydro ⁇ philic polymers such as carboxymethylcellulose, methylcellulose and other cellulose ether ' s, lignin derivates, various kinds of modified starches (ethers and acetates), and synthetic hydro ⁇ philic polymers such as polyacrylic acids, polyacrylamides, and polyethylenoxide, polyvinyl pyrrolidone, polyethylenimine and others, as well as combinations of such polymers or with other substances.
- natural hydrophilic polymers such as gum arabic, traganth and karaya
- semi-synthetic hydro ⁇ philic polymers such as carboxymethylcellulose, methylcellulose and other cellulose ether ' s, lignin derivates, various kinds of modified starches (ethers and acetates)
- synthetic hydro ⁇ philic polymers such as polyacryl
- inorganic substances which can either be used alone to bind water in the form of a gel or a highly vis ⁇ cous fluid, can be mentioned water glass, alumina, magnesia, betonite etc. and mixtures of such inorganic hydrophilic sub ⁇ stances or mixtures of these and hydrophilic polymers.
- hydrophilic polymers and/or hydrophilic inorganic substances can eventually be cross-linked, either in the form of a pre-crosslinked film or sheet or similar or a layer cross-linked in situ.
- the former can be mentioned "Dow Water Absorbent Laminate" and of the latter a mixture of lignosulfonate and dichromate.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Sealing Material Composition (AREA)
Abstract
Afin de rendre une construction de toiture étanche aux fuites, on la dote d'une couche contenant des polymères hydrophiles et/ou des substances inorganiques connues augmentant la viscosité et/ou formant un gel. Cette couche peut être incorporée à la construction sous la forme d'une membrane ou d'un revêtement, ou alors elle peut être répartie en tant que poudre. Grâce à cette couche, la construction de toiture deviendra auto-isolante.In order to make a roof construction leak-proof, it is provided with a layer containing hydrophilic polymers and / or known inorganic substances increasing viscosity and / or forming a gel. This layer can be incorporated into the construction in the form of a membrane or a coating, or it can be distributed as a powder. Thanks to this layer, the roof construction will become self-insulating.
Description
Method for the making of self-plugging and/or non-dripping roofing construction.
The invention relates to the making of self-plugging and/or non-dripping roofing construction.
A modern roof design normally includes a structure to carry loads, insulation to control heat flow, a barrier to control air and vapour flow, and a roofing element to prevent water penetration.
Problems connected with leaks and dripping are known to occur with more or less all types of roofs, but are more prevalent with some roof designs than with others. There are such factors as roof angle, type of insulation or no insulation, type of roofing material and obviously the climate outside and inside which have significant bearing on the tendency for leaks and dripping from condensation of a particular building.
Buildings with flat or low-angle roofs in climates with snow during winter or with heavy rains and high humidity are particularly prone to develop leaks. Industrial buildings with a production process entailing high humidity are particularly prone to dripping from condensation.
On buildings with flat low-angle the roofs socalled "built-up roofing" is the most common roofing type used. Built-up roofing is a continous membrane covering manufactures on site from alternate layers of bitumen, bitumen-saturated felts or asphalt-impregnated glass mats, saturated and coated felts, and surfacings.
New materials have "lately led to roofing materials of single-ply or limited-ply membranes consisting of e.g. a single-ply sheet of an ealstomeric or plastic material.
Roofing membranes can also be liquid-applied as a single or two-component system with polymeric fabrics or glass-fibre reinforments. « hatever the type of roof and roofing construction and material used, water leaks and condensation can occur, particu¬ larly in the spring in cold climates when the snow on the roof
2MPI
is melting, or during so heavy rain falls that the roof-gutters cannot cope with the amount of water on the roof.
Water leakage and dripping for roofing constructions can have considerable economic consequences, even when the amount of water is small, for instance because the leakage site is of very small size, perhaps only a small nail hole. It is also extremely difficult to locate such leakage sites, the more dif¬ ficult the smaller the leak.
Similar problems can also be caused by condensation as a result of not sufficiently effective insulation or ventilation.
The object of the invention is to solve the above mentioned problems and to provide a method which makes it pos¬ sible to achieve a self-plugging, i.e. a self acting leak-stop¬ ping and/or non-dripping roofing construction.
This object is achieved by a method in which a layer is incorporated in the roofing construction, which layer contains hydrophilic polymers and/or known inorganic viscosity- increasing and/or gel-forming hydrophilic substances. The invention also relates to a roofing construction provided with a layer of the above type.
" The present invention solves these problems in a simple and economic way by making use of the special properties which hydrophilic polymers and/or certain hydrophilic inorganic sub¬ stances possess for increasing the viscosity of water to such an extent that it will not drip from the roofing construction, and/or to bind the water in the form and consistency of a gel. Such polymers and inorganic substances can also by water be brought to swell to such an extent that a leakage is stopped by itself.
The hydrophilic polymers which can be used with the method, can either be water-soluble or water-swellable, or a combination of both. The same applies for the inorganic subs¬ tances. Water-soluble polymers and/or water-soluble inorganic substances of the mention type can be made non water-soluble through partial cross-linking, i.e. cross-linking which leaves a number of hydrophilic groups free to bind water molecules.
The hydrophilic polymers and/or inorganic hydrophfeic sub¬ stances can be incorporated in many different ways in the
OMP
roofing construction:
1) either be applied to the deck as a coating, or
2) applied as a coat on the overside or the underside of the membrane, e.g. organic felt, asbestos ply felt, fiber-glass mats or base sheets, shingles, elastomeric or plastic film and sheeting etc. , or on another component of the roofing construc¬ tion, or
3) in the form of a film, sheet, mat, loose powder etc. be laid out over or under another component of the roofing con¬ struction, or
' 4) be incorporated in the membrane whatever the type, e.g. in a felt or sheet, or
5) be applied on or in other ways attached to other compo¬ nents which are part of the roofing construction.
As an example of hydrophilic polymers which can be used for the method can be mentioned natural hydrophilic polymers such as gum arabic, traganth and karaya, semi-synthetic hydro¬ philic polymers such as carboxymethylcellulose, methylcellulose and other cellulose ether's, lignin derivates, various kinds of modified starches (ethers and acetates), and synthetic hydro¬ philic polymers such as polyacrylic acids, polyacrylamides, and polyethylenoxide, polyvinyl pyrrolidone, polyethylenimine and others, as well as combinations of such polymers or with other substances.
As examples of inorganic substances, which can either be used alone to bind water in the form of a gel or a highly vis¬ cous fluid, can be mentioned water glass, alumina, magnesia, betonite etc. and mixtures of such inorganic hydrophilic sub¬ stances or mixtures of these and hydrophilic polymers.
The mentioned hydrophilic polymers and/or hydrophilic inorganic substances can eventually be cross-linked, either in the form of a pre-crosslinked film or sheet or similar or a layer cross-linked in situ. As an example of the former can be mentioned "Dow Water Absorbent Laminate" and of the latter a mixture of lignosulfonate and dichromate.
• There is an extensive patent and other literature treating viscosity-increasing or gel-forming polymers and inorganic substances, particularly within the fields of grouting and oil
drilling . The may be major part of such polymers and inorganic substances could f ind application with the method of the pre¬ sent invention with the necessary adjustments .
Claims
1. Method for making of self-plugging and/or non-dripping roofing construction, c h a r a c t e r i z e d in h a t a layer is incorporated in the roofing construction which contains hydrophilic polymers and/or known inorganic vis¬ cosity-increasing and/or gel-forming hydrophilic substances.
2. Method in accordance with claim 1, c h a r a c t e ¬ r i z e d i n t h a t the hydrophilic layer is in the form of a membrane or similar.
3. Method in accrodance with claim 1, c h a r a c t e ¬ r i z e d i n t h a t the hydrophilic layer is in the form of a coat on another component of the roofing construc¬ tion.
4. Method in accrodance with claim 1, c h a r a c t e ¬ r i z e d i n t h a t the layer is distributed onto the roofing construction in the form of a powder.
5. .Roofing construction c h a r a c t e r i z e d b y a layer containing hydrophilic polymers and/or known inorganic viscosity-increasing and/or gel-forming hydrophilic substances.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO830480 | 1983-02-14 | ||
| NO830480A NO830480L (en) | 1983-02-14 | 1983-02-14 | PROCEDURE FOR MANUFACTURING SELF-SEALING ROOF CONSTRUCTION |
| NO83833164A NO153893C (en) | 1983-02-14 | 1983-09-05 | PROCEDURE FOR THE PREPARATION OF SELF-SEALING AND / OR NOT DRIPTING ROOF CONSTRUCTION. |
| NO833164 | 1983-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0138847A1 true EP0138847A1 (en) | 1985-05-02 |
| EP0138847B1 EP0138847B1 (en) | 1988-06-08 |
Family
ID=26647838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84900896A Expired EP0138847B1 (en) | 1983-02-14 | 1984-02-14 | Method for the making of self-plugging and/or non-dripping roofing construction |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0138847B1 (en) |
| CA (1) | CA1216727A (en) |
| DE (1) | DE3471951D1 (en) |
| DK (1) | DK150463C (en) |
| IT (1) | IT1179972B (en) |
| NO (1) | NO153893C (en) |
| WO (1) | WO1984003098A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010021439A1 (en) | 2010-05-25 | 2011-12-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sealing arrangement for a roof construction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005060260B4 (en) * | 2005-12-16 | 2010-04-08 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Process for the rehabilitation of a flat and / or flat roof of a building |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3186896A (en) * | 1962-05-09 | 1965-06-01 | American Colloid Co | Moisture impervious panel |
| DE1769907C3 (en) * | 1968-08-03 | 1973-10-04 | Dunlop Ag, 6450 Hanau | Process for the production of roof coverings based on aqueous polymer dispersions |
| FR2362908A1 (en) * | 1976-08-23 | 1978-03-24 | Kasei Co C I | MATERIAL TO PREVENT THE LOSS OR LEAKAGE OF A SELF-INFLATING FLUID SUCH AS WATER |
| US4070839A (en) * | 1976-09-09 | 1978-01-31 | American Colloid Company | Moisture impervious panel |
| LU76710A1 (en) * | 1977-02-04 | 1978-09-13 | ||
| HU177343B (en) * | 1977-11-08 | 1981-09-28 | Mta Termeszettu Domanyi Kutato | Process for stabilizing aquous solutions utilizable for producing hydrophyle polymere gels and for improving solidity and impermeability of granula materials and/or solide bodies,first of all defective canals and structural objects |
| FR2479629B1 (en) * | 1980-04-01 | 1985-11-08 | Thomson Csf | METHOD FOR DEMODULATING AN AMPLITUDE MODULATED SIGNAL, DEMODULATOR IMPLEMENTING THIS METHOD AND TELEVISION SYSTEM COMPRISING SUCH A DEVICE |
-
1983
- 1983-09-05 NO NO83833164A patent/NO153893C/en unknown
-
1984
- 1984-02-13 CA CA000447237A patent/CA1216727A/en not_active Expired
- 1984-02-14 IT IT67136/84A patent/IT1179972B/en active
- 1984-02-14 WO PCT/NO1984/000010 patent/WO1984003098A1/en active IP Right Grant
- 1984-02-14 DE DE8484900896T patent/DE3471951D1/en not_active Expired
- 1984-02-14 EP EP84900896A patent/EP0138847B1/en not_active Expired
- 1984-10-08 DK DK480684A patent/DK150463C/en not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8403098A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010021439A1 (en) | 2010-05-25 | 2011-12-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sealing arrangement for a roof construction |
| WO2011147564A1 (en) * | 2010-05-25 | 2011-12-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sealing assembly for a roof structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DK150463B (en) | 1987-03-02 |
| DE3471951D1 (en) | 1988-07-14 |
| NO833164L (en) | 1984-08-15 |
| DK480684A (en) | 1984-10-08 |
| EP0138847B1 (en) | 1988-06-08 |
| IT8467136A0 (en) | 1984-02-14 |
| NO153893B (en) | 1986-03-03 |
| DK150463C (en) | 1987-11-16 |
| NO153893C (en) | 1986-06-11 |
| WO1984003098A1 (en) | 1984-08-16 |
| IT1179972B (en) | 1987-09-23 |
| DK480684D0 (en) | 1984-10-08 |
| CA1216727A (en) | 1987-01-20 |
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