Summary of precautions for toilet waterproof coating construction

What precautions should be taken when waterproofing the bathroom? The construction points are summarized as follows:

1.

Be sure to do a good job of waterproofing the wall before laying the wall tiles

2.

Waterproof coatings should be qualified products that meet the requirements of national and local regulations

3.

When laying waterproof floor tiles, first chisel the original floor tiles, and the ground must be smoothed with cement mortar

4.

The groove of the inner water pipe should also be waterproofed

Floor practice of waterproofing in bathroom

1.
The base layer must be done first.
What we usually call the base layer is the layer on which the ground is the cement mortar surface
.
The ground should be inclined towards the floor drain
.
Cement mortar or bean stone concrete can be used, but the surface should be flat
.
The slope near the door is small, and the slope near the floor drain is large, depending on the specific situation
.

2.
Leveling is an important step in bathroom decoration
.
If the ground is not level, it is easy to accumulate water, and the water will accumulate for a long time
.
If the material is not selected properly during decoration, water leakage will naturally occur
.
Leveling skills: The flashing slope should be 2%, and all pipe roots should be leveled against the wall with a 5% (1:20) slope
.

3.
Local areas should be treated differently
.
For parts that are prone to leakage such as sewers and yin and yang corners, some special waterproofing and leak-stopping treatments should be done
.

4.
Fine coating: first stir the coating evenly
.
When painting, a layer of paint should be evenly brushed with a plastic or rubber scraper on the primed base surface, with a thickness of 0.
6mm, should be uniform, and the amount of scraping should be 0.
6-0.
8kg/m2
.
During operation, according to the waterproof construction plan of the bathroom, the wall and the ground are first, and the operation is retreated from the inside to the outside
.
The coating should be as uniform as possible and there should be no localized deposits
.
, leaving no air bubbles, tightly bonded
.

5.
Brush the facade first, then the plane, and the next paint direction is perpendicular to the previous one
.
When the last layer of film is semi-cured, the coarse sand grains are thrown and pulled for later bonding with the cement mortar
.

6.
The ground waterproof layer should be painted with a width of 300mm outside the bathroom door
.
The waterproof layer of the waterproof floor should be 200mm higher than the ground, and the waterproof layer of the bathroom wall with a shower should be 1800mm higher than the ground
.