Bituminous
Bituminous is the adjective derived from bitumen. Bituminous roofing material is capable of repairing damage caused by moisture.Binder material ensures sufficient air transport during vacuuming so that the pressure in the vacuum bag is equal in all places. Also, this material absorbs excess resin. After the resin cures, the bleed mat together with the perforated film (perforex) are removed. After this, the tear tissue (peel ply) can be removed.