Bituminous waterproofing membrane and laying structure

Abstract

The application relates to the field of building construction and discloses a double-tire-base waterproof roll and a paving structure. The double-tire-base waterproof roll comprises a first waterproof roll and a second waterproof roll. The second waterproof roll is parallelly overlapped with the first waterproof roll along the length direction and forms an overlapped first overlapping area. The width of the first overlapping area is not less than 1 / 3 of the width of the first waterproof roll and the second waterproof roll after overlapping. Meanwhile, an overlapping edge for paving the double-tire-base waterproof roll is preset on the first overlapping area. The joint position is stable during construction, the gap caused by movement or deformation is avoided, a double protection layer is formed at the joint, the potential water seepage path is effectively prolonged, and the leakage risk is greatly reduced. The overlapping edge ensures the accuracy and consistency of the overlapping width and position of the double-tire-base waterproof roll during paving, avoids the error possibly caused by cutting or positioning according to experience on site, and makes the overlapping operation more standardized and efficient.

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