What is the waterproof sheet with rock?
somewhat similar to the role of oil mulberry waterproofing layer of green beans.
Shale is a kind of small pumpkin seed size of the stone, mainly in the waterproof membrane surface heat reflection and anti-ultraviolet aging role of the protective layer
Is not a "rock plate" waterproofing membrane, is a shale (also known as slate) surface of the waterproofing membrane, generally used for high polymer modified asphalt membrane (SBS, APP) of the cladding material.