Title:
FIRE-RESISTING ROOF BOARD
Document Type and Number:
Japanese Patent JP3520185
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the productivity of a fire-resisting roof board, and to reduce cost by forming a fire-resisting adhesive layer on the rear side of a corrugated folded-plate roof while bonding foamed polystyrene on the adhesive layer and eliminating the need for an expensive heat-insulating material such as glass fiber.
SOLUTION: A fire-resisting adhesive layer 3 consisting of gypsum powder, aluminum hydroxide, zeolite, carbon, vermiculite, a polybenzimidazole resin, etc., is formed on the rear side of the folded-plate roof board 1 formed by molding a metal sheet material by a roll. Foamed polyethylene 2, etc., from which an incombustible or noxious gas, etc., are not discharged, are stuck on the adhesive layer 3. Even when foamed polyethylene 2 is heated by a flame and melted down, the fire-resisting adhesive layer 3 is left on the roof board 1, and the roof board is not deformed and deflected. The melted-down foamed polyethylene 2 can be exchanged easily with new one. Accordingly, a fire- resisting roof can be obtained at low cost.
Inventors:
Junichi OI.
Hosono, Akihiro
Hosono, Akihiro
Application Number:
JP23871697A
Publication Date:
April 19, 2004
Filing Date:
September 03, 1997
Export Citation:
Assignee:
SANKO METAL IND CO LTD
International Classes:
E04D3/35; B32B5/18; B32B13/12; B32B27/32; (IPC1-7): E04D3/35
Attorney, Agent or Firm:
岩堀 邦男