What material is the film on the waterproof roll? What's your name?
The former is made of paper or low grade mortar. Because of the construction of the rigid layer, it is easy to enter the concrete, so it is not necessary. Low grade mortar construction of the transport car damage to the waterproof layer, and the performance of non slip is not ideal, so it is also less used. Now generally use dry linoleum, one also useful thick plastic film and other materials.
The construction of other structural layers on the waterproof layer may puncture the damaged waterproof layer, and proper protection is necessary, and the isolating layer can also play a protective role at the same time.
The rigid surface layer (usually 40mm thick fine stone concrete) there will be deformation of thermal expansion and contraction, if the waterproof layer and the rigid layer is very good, the rigid layer deformation will affect the waterproof layer with deformation, it may produce direct damage crack or long-term fatigue on the waterproof layer, so the isolation layer has a set of functions in the slip two tectonic layers;
