(1) The bonded layer (sand surface) of the modified asphalt base waterproof coil is oriented towards the podcast concrete, and the short side lapping of two adjacent sheets of the coil in the end lapping area is staggered by 1/2~1/3 of the width of the coil; Vertical side wall laying; Waterproof coil from one end along the same direction, gradually forward.
(2) the side wall waterproof coil vertical playing on the envelope structure, the use of point stick or stick will tape on the base layer, and auxiliary mechanical fixed, that is, the position of the lap edge from the edge of the coil 10㎜-20㎜, every 400-600㎜ mechanical fixed, and should ensure that the fixed position is the next stretch of the coil lap completely covered;
(3) refer to GB50108-2008 "underground engineering waterproof technical specifications" lap edge distance from the edge of 20㎜ to ensure that the same layer adjacent to two pieces of coil short edge lap joints should not be less than 500㎜.