Roof waterproof mattress should play the number of centimeters appropriate
Roof waterproofing can not use a single waterproof material, must be rigid and flexible combination of construction, flexible waterproof stretch is good, a little bit of settlement or deformation will not damage the waterproof layer. Rigid waterproof (ie mortar waterproofing agent) waterproof at the same time, can play a protective role, waterproof layer is not easy to be destroyed.
4. The second layer to do mortar waterproof (mortar waterproof), waterproof at the same time can protect the bottom of the flexible waterproof.
? 3. The first layer to do flexible waterproof, that is, roof-specific anti-aging waterproof coating.
? 2. repair the cracks well. After the cracks to be repaired are dry, start waterproofing.
Roof leaking of the construction program:
? 1. Need to remove the previous waterproof, such as paint, coil, etc., if it is to do the mortar waterproof can not be eradicated.
