Patent ID: 6942915

Claim:
A fibre reinforced plastic roofing material comprising two or more sandwich structures each having a length of from 10 m to 25 m and a width of from 1.5 m to 3.5 m and comprising a pair of fibre reinforced plastic sheets arranged with a gap therebetween, and a rib structure interposed in the gap between the pair of sheets which is integrally molded by a resin transfer molding, wherein the fibre reinforced plastic includes a reinforcing fibre that is selected from the group consisting of a carbon fibre, a glass fibre and carbon fibre hybrid, and combinations thereof, and wherein the two or more sandwich structures are butt joined in the widthwise direction by being integrally molded by a resin transfer molding with a layer containing a resin distribution medium comprising a body having resin flow channels formed therein and a fiber reinforced layer placed between abutting end surfaces of said sandwich structures and, wherein the layer extends across the surfaces of both ends of said sandwich structures.