BTM BituProof Y, first layer membrane used on the foundation bed of system (under the raft), is a superior quality membrane with reinforced elastomeric modified bitumen and high strength special polyester reinforcement side laps and end laps are torched.
BTM BituProof Y, first layer membrane used on the foundation bed of system (under the raft), is a superior quality membrane with reinforced elastomeric modified bitumen and high strength special polyester reinforcement side laps and end laps are torched.