Waterproof strategy for top-floor residential decoration

The waterproof decoration of the top-floor building needs to pay attention to the construction sequence, and the construction shall be carried out according to the following steps.

construction sequence

Before renovation, you should contact the property to make sure that the waterproofing of the roof has been accepted; It is best to personally verify the waterproof quality of the roof; After verification, indoor construction can be started without problems; When problems are found, it is necessary to inform the property or contractor to do the top waterproof repair first; Interior decoration can only be started after the decoration is completed; If you have the conditions, you can find a professional waterproof company to do waterproof again.

Coating selection

Waterproof coating is the foundation of waterproof engineering. At present, the main waterproof coatings on the market mainly include hard mortar, flexible mortar, acrylate and polyurethane. For the top floor, Bian Xiao suggested using hard mortar and polyurethane. The former is easy to use and has good waterproof effect on the back surface, and the price is about 200-300 yuan/barrel. The latter can be used indoors and outdoors, with high temperature resistance and adaptability to base deformation, but the price is slightly more expensive in 500 yuan/barrel.

Key areas

Compared with other floors, the key parts of roof waterproofing are mainly concentrated in the roof, balcony and bathroom. Especially for the waterproof layer of the roof, a special waterproof coating or thick asphalt coating can be painted on the ground, and then a layer of cement mortar can be added to protect the waterproof coating or asphalt.

Roof waterproofing

Double waterproof layer protection, a layer of special waterproof coating or thick asphalt coating, plus a layer of cement mortar layer to protect waterproof coating asphalt, the top waterproof mortar layer must pay attention to the bearing capacity of the floor.

Balcony waterproofing

The joint between the window and the wall is well sealed, and the ground has a slope, with a height difference of at least 2-3 cm from the floor of the living room or bedroom. Set the drain pipe on the lower side.

Waterproof bathroom

Floor drain, wall-ground junction, nozzle and lintel are mainly waterproof, and other parts need to be brushed twice. Make a basin-shaped area under the lintel in advance to form the function of storing water and retaining water.