How to do the waterproofing of the bathroom of the new house?

Do a good job of the base, usually the ground is a cement mortar surface, there are some special circumstances, such as the pipeline is not buried, the ground is uneven, so, the base should be smooth, the surface should be smoothed and calendered, solid, there shall be no hollowing, sanding, cracking and other phenomena, the moisture content of the base should meet the construction requirements of waterproof materials, not greater than 9. The flooding slope of the screed layer should be 2, and the slope of 5 (1 20) should be erased at the root of the pipe against the wall to avoid water accumulation here. Pipe roots and floor drains that protrude from the floor and walls.

Drain outlets, yin and yang corners and other parts that are prone to leakage should be treated with local special plugging treatment, stir the paint evenly, open the paint packaging barrel, and stir fully with a stirrer for about 5 10 minutes until the material does not contain aggregates and no precipitation. Generally, mechanical mixing is used, and manual mixing is not appropriate.

The first layer of coating film: the waterproof coating with a plastic or rubber scraper evenly coated on the surface of the base layer that has been coated with primer, the thickness is, to be uniform, the amount of scraping is appropriate, the operation of the wall first and then the ground, from the inside to the outside of the operation, when coating as uniform as possible, there can be no local deposition, no bubbles, tight bonding. When used on a wet or non-absorbent base layer, there is no need to lay the bottom layer.

THE WATERPROOF LAYER SHOULD EXTEND FROM THE GROUND TO THE WALL, 250MM ABOVE THE GROUND. THE HEIGHT OF THE WATERPROOF LAYER ON THE WALL OF THE BATHROOM NEAR THE SHOWER HEAD SHALL NOT BE LESS THAN 1800MM. When the first layer of coating film is solidified to non-sticky hands, the second coating film waterproof construction is carried out according to the first material construction method.

In order to make the thickness of the coating film uniform, the direction of scraping must be perpendicular to the direction of the first scraping, and the amount of scraping is slightly less than that of the first pass, and the thickness is appropriate. THE WATERPROOF LAYER OF THE COATING FILM IS EVENLY PAINTED, AND THE GENERAL THICKNESS SHALL NOT BE LESS THAN 1 5MM, ESPECIALLY FOR FAÇADE CONSTRUCTION, ONE OR MORE LAYERS CAN BE ADDED. When adding non-woven fabrics, the lower coating and upper coating should be continuously constructed, and the non-woven fabrics should be paved straight, and brushed with a brush without leaving a hollow drum.

The waterproof surface of the coating film is not blistering, does not flow, is smooth and has no concave and convex, and the joints of pipe fittings, sanitary ware feet, floor drains, and drainage outlets are tight, and the end is smooth and non-leaking. After the waterproofing project is completed, a 24-hour closed water test must be done. Precautions Since there are certain technical requirements for waterproof construction, it is best to be carried out by professionals It is recommended that you do not operate it yourself.

First, try not to destroy the original waterproof layer, in the new delivery of the building, generally in accordance with the relevant specifications to do the waterproof layer, but in the process of decoration may add some bathroom bathing facilities and a variety of water and water pipelines to re-arrange, so as to destroy the original waterproof layer of the building. Qinglong construction experts suggest that friends who need to decorate should try not to damage the original waterproof layer, and if it is damaged, it must be repaired in time to avoid leakage in the future. Second, the re-paving floor tiles to do ground waterproofing, if you need to replace the original floor tiles in the bathroom, after chiseling the original floor tiles, you must first use cement mortar to level the ground, and then do waterproof treatment, so as to avoid leakage caused by uneven thickness of waterproof coating.

Third, the wall must be waterproof, the bathroom bath water will splash on the adjacent wall, if not waterproof, the wall is prone to mildew, so before laying the wall tiles, must do a good job of wall waterproofing. Qinglong construction experts suggest that the wall waterproofing should not be less than 30 cm, if it is a non-load-bearing light wall, the entire wall should be waterproofed. Fourth, the groove of the water pipe in the wall should also be waterproof.

1. Preparation before construction, leveling the base surface (the base surface should be strong and smooth, to ensure that there are no obvious concave and convex, pits), if there are defects or cracks on the base surface, the waterproof layer construction can only be carried out after the treatment is qualified. Substrate cleaning (clean until there is no dust, no oil, no concrete release agent and other debris) Substrate cleaning (the substrate is in a wet state, but there is no obvious water accumulation) For the oily substrate, 10% sodium hydroxide solution should be scrubbed, and then rinsed with water. 2. Waterproof construction, product ratio (according to the product description of the ingredients, stir evenly without agglomeration).

Use the "Sipov Plugging Spirit" to brush it thinly first. The first roller coat is 801 glue (use a roller to apply it evenly). Strengthen the treatment of the parts (the yin and yang corners, pipe heads, drains, etc. are painted once to the arc).

The first waterproofing application (evenly painted horizontally until there are no loopholes). The second waterproof construction (every 2-4 hours until the surface is just non-sticky, painted longitudinally.) 3. Test the water and test the water time (after the waterproof membrane is dry, test the water about 24 hours later).

Key points of water test (20 minutes of water spraying on the wall, 24 hours of water storage on the ground), inspection (if there is water seepage, repeat the construction operation).