The main guarantee in the home improvement process is the safety of home improvement. Such as waterproof, circuit installation, water installation and other work. But do you know what areas of your home need to be waterproof? Are these areas that need to be waterproofed to adopt uniform standards and methods?
First, standard construction guarantee quality waterproof coating construction process
Choosing a waterproof coating does not mean that home waterproofing is perfectly safe. As the saying goes, 'three points of material, seven points of construction' will cause great trouble if errors occur during construction. Therefore, it is necessary to understand the standard process of construction of waterproof coatings. Whether it is self-installation or construction, the risk of leakage can be minimized.
1, construction preparation: do a good job at the base
Waterproof grass-roots requirements: In the waterproof construction before the construction of the wall, the ground to ensure that the grass-roots surface solid, no cracking, pulverization, peeling, from the drum and so on. At the same time, the surface of the base must be clean, free of dust, Mold Release Agent, etc., which will affect the adhesion of the paint.
Grassroots treatment method: firstly carefully clean the base surface to remove floating dust, remove cement agglomerates and loosen the base layer; carry out special treatment for roots, drainage holes, yin and yang angles, and voids left after the hydropower reform of the wall surface, etc. Should be rounded (or V-shaped). Uneven, cracked parts need to be repaired and leveled.
2. Construction preparation: Proportional deployment of waterproof coating
In the past, waterproof materials only required simple brushing. Nowadays, new waterproof coatings are mostly two-component or even three-component. Therefore, before construction, you need to understand how to deploy and how much to deploy. If not proportioned, the formulated waterproof coating may not achieve the original effect.
3, brushing method: the first wall after the ground
Waterproof paint is similar to general liquid paint when it is applied, and it is brushed from the bottom to the top and back to the front wall. When using, if there is a bubble in the slurry, the bubble needs to be opened, and no bubbles can exist. The first pass only needs to be applied in one direction, and the second pass is done in the opposite direction. The time between the first pass and the second pass is preferably about 4-8 hours.
4, special treatment: caisson treatment of the bathroom backfill
Many bathrooms generally do caisson and therefore need to be backfilled. Before backfilling, it is generally necessary to do a waterproof, and then backfill after the water closure test. After backfilling, leveling requires a further layer of waterproofing.
5, construction standards: waterproof height, thickness index
In general, the bathroom waterproof 180 cm high, non-shower wall in principle waterproof paint can not be less than 30 cm. However, in order to enhance the waterproof effect, it is recommended to achieve a uniform height of 180 cm. In addition, it is recommended that the waterproof height be the top for light walls and self-built light walls that have been remodeled in toilets. In terms of thickness, the waterproof coating must be brushed to a thickness of 1.5 mm by the National Acceptance Specification.
Second, the acceptance test can not be lack of waterproof construction acceptance method
Once the waterproof project leaks and repairs, the amount of work is very large. For example, for waterproofing in the bathroom, the wall tiles and floor tiles should be knocked out first, waterproofing should be done again, and the walls should be replaced again. The toilet, shower room, ceiling should be reinstalled. This is equal to It is a double-pass project. Therefore, it is critical to check the quality of waterproofing projects and do a good job of checking them.
1, closed water test is essential
Closed water test is an important work for waterproof inspection. For the original waterproof layer, through the closed water test, you can understand whether the waterproof layer is in good condition, whether it needs repair, and whether it is necessary to remake the waterproof layer. For the new waterproof layer can be used to check the waterproof construction is qualified.
2, closed water test general practice
The closed water test must be done after the waterproof paint dries out. First, put the prepared sand in a plastic bag, tightly plug the floor drain, prevent the stored water from running off, and then fill the door with water. Plug the cement; then put the water, the water must be soaked in the entire painted water test ground, generally put 10cm is enough, if the fear of release of water evaporated in the next 48 hours, generally put 20cm.
3, closed water test criteria
The closed water test time is at least 24 hours in summer and at least 48 hours in winter. During this period of time, it is observed whether there is a significant drop in water surface, especially if there is any leakage in the roof of the house downstairs to check whether the waterproof construction is qualified. The light wall shall be used for the watering test. The water pipe shall be sprayed continuously on the wall from top to bottom for 3 minutes. After 4 hours, the penetration of the other side of the wall will be observed. If there is no penetration, the waterproof construction acceptance will be considered. qualified.
4, closed water test operation details
The following points should be noted when making a water shut-off test: First, the floor drain must be plugged tightly, and if the topography is to block the cement at the entrance, it must wait for the cement to dry before releasing the water; secondly, when the water is drained, the water column directly touches the ground. Pots or lids and the like prevent the water pressure from breaking the waterproof layer too strongly.
5, closed water treatment method
If the water shut-off test is not closed, the waterproofing project must be reworked as a whole and the inspection must be re-accepted. Only after passing the acceptance can other construction be carried out.
6, understand the housing waterproofing warranty period
General housing waterproofing is carried out by the decoration company. According to Article 32 of the “House Interior Decoration Management Regulationsâ€, under the normal conditions of use, the minimum warranty period for residential interior decoration works is two years, and there is a kitchen with waterproof requirements. Bathrooms and external walls and prevent leakage for five years. Therefore, if the house leaks within 5 years, you can find a decoration company to ask for responsibility.
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