How To Prevent Leakage At Seams Of Self-adhesive Waterproofing Membrane?
Jun 03, 2022
Next, I will introduce the methods of self-adhesive waterproofing membrane to prevent leakage at seams?
If the laying direction and overlapping direction of the self-adhesive waterproofing membrane are incorrect, and the lap width of the short side and the long and short sides of the adjacent two sheets of membranes does not meet the requirements, it will often lead to the appearance of the seam of the waterproof layer of the roofing self-adhesive membrane. Leakage phenomenon, the following will teach you the preventive measures for leakage at the seams of self-adhesive waterproof membrane:
(1) The lap joint method should be adopted when laying the self-adhesive waterproofing membrane. If the lap joint is parallel to the ridge, it should be lapped in the direction of flowing water; if the lap joint is perpendicular to the ridge, it should be lapped in the direction of the larger frequency wind. .
(2) The laying direction of self-adhesive waterproofing membrane should be carried out according to the size of the roof slope. If the roof slope is less than 3%, it should be laid parallel to the roof ridge; if the roof slope is 3%~15%, it should be parallel or perpendicular to the roof ridge. It can be paved; if the roof slope is greater than 15% or the roof is subject to vibration, the asphalt waterproofing membrane should be paved perpendicular to the ridge, and the high-polymer modified asphalt waterproofing membrane and synthetic polymer waterproofing membrane should be paved with parallel or vertical ridges. Can.
(3) The lap joint of the lower self-adhesive waterproof membrane and the joint of two adjacent rolls should be staggered by the width of the coil, the short side should be staggered by not less than 500mm, and the lap width should meet the specified requirements.
