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FAQ

What is the waterproof layer and the waterproof cushion in the tile roof?

Waterproof: In order to prevent rainwater from entering the roof, groundwater infiltrates the wall, the basement and the underground structures, and the indoor water penetrates the floor and the wall.

Is foam concrete suitable for use as a cushion?

Inappropriate. Bubble concrete is a new type of energy-saving and environmentally friendly building materials, which are widely used in wall materials, but there are still some defects, such as low strength, cracking, water absorption, as the cushion of its strength is not enough standard.

Foam concrete for the roof cushion generally do much bulk ah

First help you correct it, foam concrete used in the roof should be the role of thermal insulation, not as a cushion.

Basement floor mattress dry to what degree can do coil waterproof?

Pull a square coil, tiled on the floor above, in the case of the sun, the sun shines on half an hour, in turn, look at the coil, if no water to prove that the water content is not large, that can be construction.

Can the cushion on the prefabricated board floor be dug?

1, can not be dug, the prefabricated board seam is too big. 2, in addition, now rarely used prefabricated panels, the earthquake effect is not good; especially after the Wenchuan earthquake. If it is cast-in-place floor, you can dig out.

Large area ground concrete cushion seam Why is the separation of joints generally concrete

Second, sub-grid seam set In order to reduce the total shrinkage and temperature stress of the large area waterproof layer, avoid the leakage of the waterproof layer due to the deformation of the structural layer and the change of the temperature and humidity, the waterproof layer should be divided according to the shape, size and structure of the flat roof, Stay sewn. The waterproof layer is divided into several squares.

Roof waterproof mattress should play the number of centimeters appropriate

? 3. The first layer to do flexible waterproof, that is, roof-specific anti-aging waterproof coating.

Can the floor tiles be removed from the cement mats on the prefabricated board floor?

Cement cushion as a leveling layer on the floor, not designed to the structure of the load-bearing, the general can be dug, the cushion is generally 3 to 5 cm, chisel in addition to unloading the floor of the heavy objects, chisel in addition to the use of strong vibration Machine or penetrating machine is too large, with a small hammer small chisel, along the horizontal plane horizontal chisel, stripping cement cushion.