Does the basement floor joint affect waterproofing? Why?

Deformation joints in the basement floor will not affect waterproofing. Because deformation joints need waterproofing.

Knowledge expansion: construction technology of rubber deformation joint

The waterproof method of rubber deformation joint of foundation floor adopts external defense and internal paste, and the waterproof method of rubber deformation joint of external wall and garage roof adopts external defense and external paste.

On the foundation cushion concrete, build a permanent protective wall with a thickness of 240mm to the upper mouth of the guide wall. All internal corners shall be leveled with 1: 3 cement mortar, and the temporary protective wall with a radius of 0mm and a height of 300 mm shall be leveled with lime mortar.

After the leveling layer is dried, the floor and facade can be paved when the moisture content is less than or equal to 9%.

The ground is fine stone concrete, and the facade is 1:3 cement mortar.

Before the concrete laying of the basement exterior wall, the temporary protective wall should be removed and the surface cleaned.