EP0138847B1 - 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 Download PDF

Info

Publication number
EP0138847B1
EP0138847B1 EP84900896A EP84900896A EP0138847B1 EP 0138847 B1 EP0138847 B1 EP 0138847B1 EP 84900896 A EP84900896 A EP 84900896A EP 84900896 A EP84900896 A EP 84900896A EP 0138847 B1 EP0138847 B1 EP 0138847B1
Authority
EP
European Patent Office
Prior art keywords
membrane
dripping
water
self
roofing
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
Application number
EP84900896A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0138847A1 (en
Inventor
Oystein E. Rasmussen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from NO830480A external-priority patent/NO830480L/no
Application filed by Individual filed Critical Individual
Publication of EP0138847A1 publication Critical patent/EP0138847A1/en
Application granted granted Critical
Publication of EP0138847B1 publication Critical patent/EP0138847B1/en
Expired legal-status Critical Current

Links

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 continuous 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 materials of single-ply or limited-ply membranes consisting of e.g. a single-ply sheet of an elastomeric or plastic material.
  • roofing membranes can also be liquid-applied as a single or two-component system with polymeric fabrics or glass-fibre reinforcements.
  • 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 difficult the smaller the leak.
  • DE 2740275 discloses a rigid moisture- impervious panel for inclusion in a roof structure, containing a water-swellable material which absorbs leaking water and helps to block the leak.
  • An object of the invention is to provide a method which makes it possible to achieve a self-plugging, i.e. a self acting leak-stopping and/or non-dripping roofing construction.
  • a continuous second membrane is included with the basically waterproof roofing membrane, which second membrane comprises viscosity-increasing and aqueous-gel forming material chosen from the group consisting of the aqueous-gel forming natural and synthetic hydrophilic polymers and inorganic hydrophilic substances that form gels with water, whereby holes made by nails and cracks that may form upon weathering are self-plugged by the second membrane and dripping is prevented by water absorption and swelling of the second membrane.
  • the invention also relates to a basically waterproof roofing membrane provided with a second membrane 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 substances 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.
  • 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 hydrophilic substances can be incorporated in many different ways in the roofing construction,
  • hydrophilic polymers which can be used for the method can be mentioned natural hydrophilic polymers such as gum arabic, traganth and karaya, semi-synthetic hydrophilic polymers such as carboxymethylcellulose, methylcellulose and other cellulose ethers, lignin derivatives, various kinds of modified starches (ethers and acetates), and synthetic hydrophilic 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 hydrophilic polymers such as carboxymethylcellulose, methylcellulose and other cellulose ethers, lignin derivatives, various kinds of modified starches (ethers and acetates)
  • synthetic hydrophilic polymers such as polyacrylic acids, polyacrylamides, and polyethylenoxid
  • inorganic substances which can either be used alone to bind water in the form of a gel or a highly viscous fluid, can be mentioned water glass, alumina, magnesia, betonite etc. and mixtures of such inorganic hydrophilic substances 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)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Sealing Material Composition (AREA)
EP84900896A 1983-02-14 1984-02-14 Method for the making of self-plugging and/or non-dripping roofing construction Expired EP0138847B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO830480 1983-02-14
NO830480A NO830480L (no) 1983-02-14 1983-02-14 Fremgangsmaate til fremstilling av selvtettende takkonstruksjon
NO83833164A NO153893C (no) 1983-02-14 1983-09-05 Fremgangsmaate til fremstilling av selvtettende og/eller ikke dryppende takkonstruksjon.
NO833164 1983-09-05

Publications (2)

Publication Number Publication Date
EP0138847A1 EP0138847A1 (en) 1985-05-02
EP0138847B1 true 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 (no)
CA (1) CA1216727A (no)
DE (1) DE3471951D1 (no)
DK (1) DK150463C (no)
IT (1) IT1179972B (no)
NO (1) NO153893C (no)
WO (1) WO1984003098A1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010021439A1 (de) * 2010-05-25 2011-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Abdichtungsanordnung für einen Dachaufbau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005060260B4 (de) * 2005-12-16 2010-04-08 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Verfahren zur Sanierung eines flachen und/oder flach geneigten Daches eines Gebäudes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186896A (en) * 1962-05-09 1965-06-01 American Colloid Co Moisture impervious panel
DE1769907C3 (de) * 1968-08-03 1973-10-04 Dunlop Ag, 6450 Hanau Verfahren zur Herstellung von Dachbelägen auf der Basis wässriger Polymerdispersionen
GB1538669A (en) * 1976-08-23 1979-01-24 Kasei Co Ltd C Water-swelling material for preventing leakage of water
US4070839A (en) * 1976-09-09 1978-01-31 American Colloid Company Moisture impervious panel
LU76710A1 (no) * 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 (fr) * 1980-04-01 1985-11-08 Thomson Csf Procede de demodulation d'un signal module en amplitude, demodulateur mettant en oeuvre ce procede et systeme de television comportant un tel dispositif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Derwent's abstract No 45371 B/24, SU 619498 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010021439A1 (de) * 2010-05-25 2011-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Abdichtungsanordnung für einen Dachaufbau
WO2011147564A1 (de) 2010-05-25 2011-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Abdichtungsanordnung für einen dachaufbau

Also Published As

Publication number Publication date
WO1984003098A1 (en) 1984-08-16
DK480684A (da) 1984-10-08
DE3471951D1 (en) 1988-07-14
NO833164L (no) 1984-08-15
NO153893C (no) 1986-06-11
IT8467136A0 (it) 1984-02-14
NO153893B (no) 1986-03-03
DK480684D0 (da) 1984-10-08
IT1179972B (it) 1987-09-23
DK150463B (da) 1987-03-02
CA1216727A (en) 1987-01-20
DK150463C (da) 1987-11-16
EP0138847A1 (en) 1985-05-02

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