Ralph, Altro Whiterock wall panel - http://www.altrofloors.com/Walls.aspx is not FRP but it may be useful in this application. You’ll need to confirme with Altro regarding UV resistance.
Ralph, Altro Whiterock wall panel - http://www.altrofloors.com/Walls.aspx is not FRP but it may be useful in this application. You’ll need to confirme with Altro regarding UV resistance.