The roof of the cement board everywhere cracked, how to do
Construction, the first with the waterproof mortar on the roof will be wiped, dry, the film will be laid in the order of the waterproof cement mortar on the ground, lap with a torch to melt firmly, this waterproof layer on it.
At present, the better choice is the polymer waterproofing membrane: waterproof concrete and waterproof mortar two, this waterproof method is simple, easy construction, ordinary masons according to the general plaster construction method can achieve good quality requirements, and low cost , The same waterproof method under the premise of technical level, the overall cost is much lower than the flexible waterproof material for other waterproof materials 1 / 2-1 / 3, the most important thing is safe non-toxic environmental protection, but if the construction process is not good, Cement mortar is likely to crack, repair will be more trouble.
Roof cement board cracks, must wait until the sunny morning to do waterproof before the roof, it is recommended to use rigid flexible combination of flexible waterproof material plus rigid material effect is the best. Flexible materials to coil, linoleum-based.
