Title:
DIFFUSION-PERMEABLE ROOF BOARDING, ROOF LINING OR WIND BRACING BOARD
Document Type and Number:
WIPO Patent Application WO1998058140
Kind Code:
A1
Abstract:
This roof-boarding, roof lining or wind bracing board has a substantially water-tight but steam-permeable foil (1) protected on both sides by two non-woven plies (2, 2'), preferably made of polypropylene, and joined to a glass and/or plastic fabric (7) impregnated with bitumen (5). This layer is covered by a plastic fibre non-woven ply (6), preferably of polypropylene. The glass and/or plastic fabric (7) highly increases mechanical strength and the bitumen (5) improves water-tightness, in particular in the area of the fastening points (nails). Owing to the openings between weft threads (3) and warp threads (4) of the glass and/or plastic fabric (7), no steam-tight bitumen layer is obtained. Instead of the glass and/or plastic fabric, a needle felted glass and/or plastic non-woven ply may also be used.
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Inventors:
PFLEGER ALFRED (AT)
Application Number:
PCT/AT1998/000113
Publication Date:
December 23, 1998
Filing Date:
April 30, 1998
Export Citation:
Assignee:
BUESSCHER & HOFFMANN GES MBH (AT)
PFLEGER ALFRED (AT)
PFLEGER ALFRED (AT)
International Classes:
B32B5/26; B32B11/10; E04D12/00; (IPC1-7): E04D12/00; B32B5/26; B32B11/10
Domestic Patent References:
| WO1996036778A1 | 1996-11-21 |
Foreign References:
| EP0767284A1 | 1997-04-09 | |||
| DE9407750U1 | 1994-06-30 | |||
| EP0708212A1 | 1996-04-24 | |||
| EP0767284A1 | 1997-04-09 |
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