Cold impermeable highly adhesive membrane coupled with a reinforcement polypropylene net, resisting even to the greatest stress it is subject to during the pipelaying, due to the ground unevenness and to any possible contacts with exposed rocks. No other protective covering material is needed, and thanks to its great adaptability to the most difficult situations like sharp bends and tees, it can be considered as a real single-band anticorrosive and mechanical protection having an anti-rock function. In the building industry, it resists to hot binder without any further protection.