Fire-resistant composite wood structure particularly adapted...

Details Fire-resistant composite wood structure particularly adapted... Fire-resistant composite wood structure particularly adapted...

E - Fixed Constructions

06

B

154/131, 108/24

E06B 7/00 (2006.01) B32B 21/10 (2006.01) E04B 1/94 (2006.01)

Patent

CA 1142796

ABSTRACT OF THE DISCLOSURE A composite wood material, specially adapted for use as part of a door with a long fire rating, comprises a board material made of wood chips, ground bark and fire-retardant chemical and one or more sheets of material of pressed wood fibers with a fire retardant added thereto, designed to optimize resistance to penetration by fire, increase screw holding ability, resist splitting and mini- mize cost. The board and sheet materials are produced from slurries which are moulded, compressed and dried then they are bonded together to form the composite material. The material is then applied to the edges of a door core.

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