Ten questions and ten answers of waterproof coating construction! Do you understand?

First: as long as you brush three times, doesn’t the thickness matter?

The waterproof coating should not only have the requirements on the number of times and the direction of cross brushing, but also the thickness of each time. Even if there is no leakage in the closed water test, it can not be used because it is too thin; Specification requirements: the film thickness of ground waterproof layer should reach 1.5mm.

Second: as long as the thickness is enough, it doesn’t matter how many times?

Brush waterproof must be according to the process requirements of the brush again and again, the last time dry again brush next time, if in order to save trouble, pour the waterproof coating on the ground, casually Hula open, each part is thick and thin, drying speed is certainly not the same, thick place surface dry, the following is still paste, once closed water at this time, waterproof is equal to white do.

Third : brushing water-proof coating directly on the roughening layer won’t affect it, will it?

In this way, there is a hidden danger of brushing waterproof, even if the burr tip is coated with waterproof coating, it is also the weakest place; Before many families brush waterproof, they don’t flatten the roughening layer of the original wall, and brush waterproof directly on the burr. If the burr is broken, that position is a small hole. Therefore, in the roughing layer brush waterproof, first of all to smooth the burr treatment, in order not to prick the hand is appropriate, if there is empty drum in the roughing layer, first shovel off the empty drum part.

Fourth:  After finishing the waterproof painting, you only need to do a closed water test, and it will not leak, right?

If the closed water test is qualified, the protective layer should be made on the ground first. After the sanitary ware is installed or the cement is fully combined after the ceramic tile is paved, try to do the water storage test again, in order to check whether there is secondary damage to the waterproof layer in the paving process.

Fifth: rigid, flexible and rigid flexible waterproof construction methods have the same requirements for the base, right?

It’s best to clean up the floating ash, ash points and pits. The drier the base is, the better the effect will be. Rigid, flexible waterproof construction methods, the requirements of the base are the same.

Sixth : waterproof foundation. It doesn’t matter whether the internal and external corners are rounded or not. It won’t affect it, will it?

The internal and external corners are rounded, which is an important step to avoid the hidden danger of waterproof, because the sharper the edges are, the more fragile the waterproof is, and the easier the problem is.

Seventh: the new water pipes and heating pipes on the ground are under the waterproof layer, right?

It is suggested to lay the newly made water pipe and heating pipe on the waterproof layer, so that even if there is leakage, it will not affect the neighbors downstairs first.

Eighth : first brush the wall waterproof, after pasting the wall tiles, brush the floor waterproof, and then do the closed water experiment and paste the floor tiles. Is this order right?

If this operation is to facilitate the waterproof layer of the ground not to be damaged, it can be done. The precondition is that the bottom layer of wall tiles is left until the floor tiles are laid. If the waterproof layer of the ground is not brushed 20cm to the wall, the hidden danger is very big. It’s like wearing 20cm high water shoes to wade 30cm deep water, can you go in without watering?

Ninth: if we find that there is water leakage on the ground, can we solve the problem by brushing the waterproof part again?

Don’t be afraid of trouble if there is a leak. Brush the whole floor including the wall 25cm once again to avoid tossing back and forth, wasting money and time.

Tenth : is the grassroots level empty. It won’t affect the waterproof quality, will it?

If the base is hollowed, sanded or cracked, the base should be treated firmly, dried fully, and then applied with waterproof, otherwise the waterproof quality and service life will be affected.


Post time: Jul-14-2021