Home improvement waterproofing process and what is the standard
1, waterproof construction should be used for waterproof coating materials.
2, waterproof material performance should be consistent with the provisions of the relevant national standards, and product certification should be a certificate.
3, the base surface should be flat, no hollowing, from the sand, cracking and other defects.
Base water content should meet the construction requirements of waterproof materials. The waterproof layer should extend from the ground to the wall, 250mm above the ground. Bathroom wall waterproof layer height of not less than 1800mm.
4, waterproof cement mortar leveling layer and foundation with dense, no hollowing, the surface smooth and smooth, no cracks, from the sand, yin and yang angle made of circular arc.
5, coated with waterproof coating evenly, the thickness of the technical requirements to meet the requirements of the general thickness of not less than 1.5mm not exposed at the end.
6, the use of construction stubble should be along the direction of water lap, lap width of not less than 100mm, the use of two or more fiberglass cloth up and down lap when the width should be staggered one-half.
7, the coating surface is not blistering, no flow, smooth no bumps, and pipe fittings, sanitary ware to the ground, floor drain, drain seams tightly rounded without leakage.
8, the protective layer of cement mortar thickness, strength must meet the design requirements, the operation is strictly prohibited damage to the waterproof layer, according to the design requirements of the ground water slope, drainage should be smooth, no water back slope phenomenon.
9, waterproofing works after completion, must do 24 hours water storage test.
Waterproof Acceptance Tips:
1, closed water test: refers to do the retaining wall, the water to be tested in the test space to test whether there is leakage phenomenon. Waterproof layer construction more common in the cabinet, bathroom. Acceptance, we must do a closed-water test, and both sides identified by the test results can be done after the surface layer. If not done closed water test or test failed to do the surface layer, the future leakage, only the surface layer all removed, to start again.
The waterproof floor of the room with yellow clay, low-grade cement mortar and other materials to be a 30 to 50 high-mm block (Kan), the leak and other tightly closed. Ground water to form a depth of 20 to 30 mm deep pool. 2 water savings 24 hours later, together with the property sector, the corresponding bathroom downstairs neighbors, to test whether the lower floor floor leakage. Common signature acceptance. If there is leakage to do or repair the waterproof layer, after the order in accordance with the above closed water test. Until no leakage is acceptable.
2, the water test: for the construction of light wall waterproofing acceptance, should take the water test, that is, the use of water pipes in the waterproof paint on the wall from top to bottom non-stop spray 3 seconds, 4 hours after the observation wall The other side of the body will appear whether the phenomenon of penetration, if there is no penetration phenomenon can be considered waterproof wall construction acceptance.
1, in preparation for acceptance of the room door to start 15 cm high retaining wall;
2, in the room into 10 cm deep water, at the same time to do the height of the water mark;
3,24 hours after the observation of whether the height of the water surface has changed, but also check the same location downstairs room ceiling whether the phenomenon of water seepage;
4, if there is no such phenomenon, that can be considered waterproofing construction acceptance; the other hand, if the inspection found that the phenomenon can be considered waterproof construction failed. If the acceptance of substandard, waterproofing works must be redone the whole, re-acceptance; for lightweight wall waterproofing construction acceptance, should take the water test, that is, the use of water pipes in the waterproof paint on the wall from top to bottom Intermittent spray 3 minutes, 4 hours after the other side of the wall to observe whether there will be infiltration phenomenon, if there is no penetration phenomenon can be considered waterproof wall construction acceptance.
