Roof waterproof material how to choose the roof waterproof steps

I believe that many people will encounter the problem of leaking water from the floor. The roof leakage has brought a great impact on our lives and has a direct impact on the life of our house. Therefore, we must do a good job of waterproofing the roof during the renovation, and now the roof is waterproof. The variety of materials is also very large, but many people do not know how to choose. Let's take a look at how to choose the waterproof material for roofing and the related knowledge of waterproofing!

Roof waterproof material how to choose

1, the material has good weatherability (to withstand the test of climate), the light, heat, ozone, etc. have a certain degree of endurance.

2, the material has anti-water penetration and acid and alkali resistance.

3, the external temperature and external forces have a certain adaptability, the material's tensile strength should be high, able to withstand temperature changes and a variety of external forces and the grassroots expansion, cracking caused by deformation.

4, good integrity, can not only maintain its own adhesive, but also firmly bonded with the grass-roots level, forming a stable impermeable overall.

Roofing waterproofing steps

1, grassroots processing

Check the quality and dryness of the screed floor and clean it. After the requirements are met, brush the primer treatment agent to ensure that the brushing area can meet the construction requirements of the day. After 4 hours of painting, the roll can be laid.

2, construction process

Base surface cleaning, repairing → brushing base treatment agent → additional reinforcement processing at the node → positioning, elastic line, trial shop → paving coil material → receiving end treatment, node sealing → cleaning, inspection, trimming → protective layer construction.

3, construction sequence

When constructing the waterproof layer, the node, the additional layer and the roof drainage should be dealt with firstly, and then the construction should be started from the lowest elevation of the roof. When paving gutters and cornices, it is advisable to reduce the overlap by guttering in the direction of the gutter and cornice. During the construction, the construction will be based on the principles of first high, low, first, and longest.

4, overlapping method

Lapping method is adopted when laying coils. Lapping joints of two adjacent coils should be staggered. Lapping joints at the sloping roof of the steel house truss in the direction of the flowing water, and the joints perpendicular to the ridge direction should be lapped in the direction of the prevailing wind direction. .

Editor's summary: The above is the introduction of relevant knowledge on how to choose waterproof materials for roofing . I hope to help friends who have this requirement! For more information, please continue to pay attention to our website, follow-up will show more exciting content. You can also buy your favorite products on Qijia Mall.

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