Bitumen, also known as asphalt, is a sticky, black and highly viscous liquid or semi-solid form of petroleum. Thanks to its waterproofing qualities, it is widely used in construction. Bituminous membranes are perfect for waterproofing roofs, basements, below-ground structures, bridges and other structures.
Once applied, Sika’s bituminous membranes are a thin layer of watertight material fully bonded to the surface. It is a flexible system, able to maintain its waterproof capacity without causing cracks.