Building board

Details Building board Building board

E - Fixed Constructions

04

B

E04B 1/94 (2006.01) E04F 13/04 (2006.01)

Patent

CA 2718775

Provided is a building board having non-flammability and being excellent in designability. In the building board, an impregnated coating film, an aqueous coating film, a solvent-based clear coating film and a top clear coating film are formed, in this order, on a surface of a base member. The aqueous coating film is formed of a synthetic resin and a fireproofing agent; the top clear coating film is formed of a UV-curable type resin and a fireproofing agent; the amount of fireproof ing agent in the aqueous coating film is 10 to 50 wt % with respect to the solids of the aqueous coating film; the amount of the fireproofing agent in the top clear coating film is 5 to 20 wt% with respect to the solids of top clear coating film; and the total calorific value measured in accordance with ISO 5660, for 20 minutes using a cone calorimeter, is smaller than 8 MJ/m2.

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