Oriental Yuhong is a relatively large waterproof brand, which has been used in Olympic projects. Houses are also commonly used.
The so-called rigid-flexible combination is to lay a layer of mortar on the waterproof coiled material as a protective layer after it is laid.
Very formal construction methods and construction precautions.
1, before waterproofing, the base course should be smooth and dry, and the root of the roof should be plastered with mortar, with rounded corners, parapets and vents.
2. Brush the cold priming oil, and make an additional waterproof layer on the roof, with an additional layer of 50cm, 30 in the upper part and 20 in the lower part.
3, do two layers of coil, coil lap width 10cm. Do coil the shop is stuck tightly, no empty drum. Long-faced coiled materials follow the drainage direction. . The coiled material involves the rain mouth 10cm. Part of the roof, the coil should be rolled up 30cm.
4. Formally speaking, after waterproofing, it is necessary to do a closed water test, plug the rain mouth, and drain the water to make the water 3cm higher than the highest point. After 24 hours, check whether there is water leakage downstairs. .
5, as a mortar protective layer.
Weaknesses, easy to leak, common faults that should be paid attention to.
1, and the lap width of the coil should be sufficient.
2, roofing used for coil convergent parts must be dense and firm.
3, the rain mouth coil must involve enough width.
Several other considerations, 1, suggest that a layer of thermal insulation should be made on the roof before waterproofing, and 9cm polystyrene board is enough. Achieve the effect of energy saving and heat preservation, which is warm in winter and cool in summer. 2. Before waterproofing, do a good job of finding slope layer. Perlite is generally used to make rainwater flow smoothly to the rainwater outlet, so that there will be no water accumulation on the roof. The general slope is 1% or 2%.