Bathroom waterproofing? Red brick cement board back cover, Lloyer brush once, then paste non woven f

What does the back cover of red brick and cement board mean?

Laoyar is not a matter of brushing once, it should be done in strict accordance with its construction instructions, it is to brush Laoyar cement slurry once, and then wipe Laoyar mortar, and then brush Laoyar cement slurry twice after semi-drying, and the operation should be careful.

Another layer of waterproof material is recommended to use elastic waterproof material: acrylic acid waterproof coating, which is far better than the old non-woven fabric in all aspects. Very few people have adopted it today. The acrylic acid waterproof coating is constructed according to the instructions, and the cement mortar needs to be applied for protection after completion.

The closed water test does not have much significance, it only reflects the penetration situation at that time, and does not guarantee the use of the water layer after many years, so the hard waterproof layer after the rigid waterproof layer is the key issue.

Hello! The water test time is based on the provisions of the "Technical Regulations for Waterproof Engineering in Indoor Buildings" and the "Technical Regulations for Waterproof Construction of Kitchens, Toilets and Bathrooms", and the next process can only be carried out without traces of leakage for less than 24 hours.

24 hours is enough to test the water, but 48 hours is enough if you really don't worry.

I developed Toilet Defense.

In general, a day is not missed.