If the waterproof coating needs to be protected, the cement mortar protective layer shall be made after the waterproof coating is completely dried. Cement is laid on the surface of waterproof layer to form a protective layer. It can be cured in 24 hours, bringing protection. The main purpose is to prevent construction personnel from trampling or damaging the waterproof layer when doing other construction. Generally, the waterproof thickness is only about 2 mm, so pay attention to the protection of waterproof layer in the later construction process. After the waterproof layer is completely dried, the construction of waterproof protective layer can be satisfied by facing and sticking bricks.

Second, the toilet waterproof construction matters needing attention

1, foundation treatment

Before construction, the ground should be leveled first. If the ground is uneven, the waterproof layer will be uneven in thickness, leading to cracking and leakage of the waterproof layer. It is recommended to use high elastic and flexible waterproof coating at joints such as floor drain, corner and pipeline, otherwise the joints are prone to leakage.

2, wall treatment

When the wall is waterproof, the height of the waterproof layer should be more than 30cm to avoid the wall being damp and moldy. If the bathroom has a shower room, the height of the waterproof layer on the wall should be above 180cm. If there is a bathtub in the bathroom, the waterproof layer on the nearby wall should be 20cm higher than the bathtub.

3, waterproof layer protection

After the waterproof layer is finished, it is usually allowed to stand for a period of time, so that the waterproof layer can be better integrated with the surrounding walls. After the waterproof layer is dry, make a protective layer on the waterproof layer to prevent the waterproof layer from being damaged by the construction steps of paving tiles, resulting in leakage of the waterproof layer. Be careful not to break the waterproof layer.