How to waterproof the roof when it is hot in summer?

Waterproof coatings are generally constructed by manual plastering, brushing or spraying. The coating should be painted in several times according to the variety of waterproof coating. The waterproof layer should be firmly bonded with the base, with a smooth surface and even coating, without flowing, wrinkling, foaming, substrate exposure, warping and other defects. The last layer of paint can be applied again after drying to form a film, not once, and the two coating directions can cross vertically.

note:

Don't walk or pile things on the coated conjunctiva until it hardens; Before the coating is completely dried, construction shall not be carried out in rainy days or in rainy days.

2, coiled material waterproof layer

Due to the design requirements, the slope of the roof slope layer should be 2%, so the coil should be laid parallel to the roof from bottom to top, and the coil lap must be tight. The joint should be overlapped in the direction of water flow, with a width of not less than 50mm, and the joint between the upper and lower houses should be staggered by 250 mm. Before laying the waterproof coil in a large area, waterproof cloth should be laid at the eaves gutter, nozzle and rain outlet, and then a large area of paving should be carried out from the lower part of the roof to the higher part.

When the roofing coil meets the wall, the coil should roll along the wall, the height should be less than 250mm, and then it should be fixed on the wooden bricks and blocks embedded in the wall, and 1: 3 cement mortar should be used as slope water.

Where pipes and other components that extend out of the roof must be punched on the roof, in order to prevent water leakage, the coil should be turned up, plastered with cement mortar or covered with galvanized iron sheet for waterproofing, and the flooding height should not exceed 200 mm

note:

The waterproof layer of the coiled material shall be firmly bonded, and there shall be no defects such as hollowing, breakage, slippage, edge warping, blistering and buckling. After the waterproof project is completed and the water storage test is qualified, the next working procedure must be started.