Does the test specification for waterproof layer closure in toilet (bathroom) stipulate that it should not be less than 24 hours or 48 hours?

24 hours, after finishing the waterproof layer, wait until the material is dry for the specified time, and do the closed water test.

Water is released from the ground to form a small pool with a depth of 20 ~ 30 mm. After 24 hours of water storage, the property management department and the corresponding neighbors downstairs in the bathroom will check whether the lower floor is leaking. * * * Signature acceptance. If there is leakage, do or repair the waterproof layer again, and then do the closed water test in the above order.

In the following process, when the ground is decorated and bricklaying, the closed water test and inspection and acceptance will be done in the above order, which is also a process that workers must do. As long as the owner has a general understanding of the process, he should carefully check whether there are any omissions according to the procedures.

Extended data:

water resistant paint

The base surface should be clean, otherwise it will be easily punctured and lose its waterproof function during construction; The moisture content is not more than 9%, otherwise, the phenomenon of "two skins" separating the base surface from the waterproof layer will be formed.

The humidity in Chongqing is high all the year round, and the sequence of toilet construction is backfilling, mortar leveling, waterproofing and bricklaying. The master will carry out waterproof construction after the mortar layer is solidified, which can't meet the requirement that the water content of the coating construction base surface is not more than 9%, and the waterproof effect of even the best material will be discounted.

Waterproof layer setting and standard construction method: it must be painted for 2-3 times, otherwise glass fiber cloth should be added, and the thickness of the cured product painted for each time should not be less than 1mm, and the next construction should be carried out after it is completely dried (about 5-8h).