In the construction of the project, it is related to the prevention and control of roofing in building waterproofing.
1. The waterproof layer of the waterproof roof of Hesheng should be placed on the base surface of the mechanism. In areas where the temperature is lower than 0 degrees, a waterproof layer should be set on the insulation layer.
2, the architectural design should be issued a roof drainage design plan, when the building function allows, the flat roof should adopt the structure to find the slope, and the slope should not be less than 3%; when the material is used to find the slope, the slope should not be less than 2%, the roof should be set to the slope in the design drawing Set the number and location of the water dividing line, drainage slope direction and water drop.
3. It is not advisable to use materials with high water absorption and looseness (such as ceramsite concrete) for the slope layer below the waterproof layer.
4. When the design and function are satisfied, the roof leveling should be mechanically smoothed and compacted for the structural concrete surface.
5. The structural structural panel of the roof shall be subjected to structural crack test, and the crack resistance measures shall be considered, including reasonable adjustment of concrete mix ratio, adjustment of structural steel bars, and addition of anti-cracking fibers.
6. Roof structural panels with a slope of not less than 10% shall be constructed of double-slab construction concrete and shall not be cast with single-plate dry-hard concrete.
7. The water and the entrance of the daughter wall, ladder house, equipment house, deformation joint, vertical entrance and exit, flue, etc. of Hesheng waterproof roof should be set with cast-in-place concrete anti-candle beam. The final surface of the high number should not be less than 200mm. Casting. The structural reinforcement is arranged in the anti-candle beam. If the second and the new concrete interface is used for the interface sealing treatment.
8. When the roof structural board is less than 120mm thick, the line pipe and the wire box should not be embedded.
9. In the following cases, it shall not be used as a waterproof fortification of the roof:
(1) Concrete structural layer.
(2) Decorative tiles.
(3) Gas barrier.
(4) Waterproof materials whose thickness does not meet the design requirements.
(5) Waterproof materials that do not meet the requirements of the current national waterproof standards.
10. The drainage wall of the Hesheng waterproof roof shall be left in the surrounding flooding parts such as the parapet wall, the ladder house, the equipment house, the deformation joint and the protruding roof structure. The longitudinal slope shall not be less than 1% of the water drop joint.
11, the spacing should not be greater than 30cm. New and old concrete construction joints of equipment foundation and structural concrete slabs shall be sealed and waterproofed at the location where the drainage ditch cannot be set.
Hopson Building Waterproof Material â— National Hotline: 0757-22904888 / 22904666 â— Official website login: http:// â— Address: No. 10, Fuyuan Road, Ronggui Rongbian, Shunde District, Foshan City, Guangdong Province
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