To provide a fire proof FRP sash excellent in fire proof safety without any breakage when the fire proof test of a B class fire proof door is performed and excellent in lightweight and heat insulation.
A sash bar such as a stile, a push edge and a frame fitted vertically and horizontally to glass plates 2, 3 integrally forms a first reinforcing fiber layer 4 comprising the woven fabric of a glass fiber during drawing forming of FRP and a second reinforcing fiber layer 5 provided continuously on the first reinforcing fiber layer 4 on the surface. When the fire proof test of a B class fire proof door is performed, the first reinforcing fiber layer 4 and the second reinforcing fiber layer 5 are cooperated to prevent breakage due to carbonization deterioration of FRP.
AKITA NAOTO
TAKAHASHI HIROTO
NISHIDA KAZUHIRO
MOMOSHIMA SACHITADA
MATSUKI KAZUHIRO
OGURA FUYUHIKO
HOKKAIDO ELECTRIC POWER