How to do a good job of waterproofing the bottom layer of the renovated toilet?

First of all, the base treatment: there can be no loose place, there must be knocked off, and then there can be no floating ash, it is best to wash it with water.

Secondly, the bottom layer treatment: after the ground is dried, find a layer of cement mortar on top, and pour a little round around or in the shady corners.

Brush waterproofing: After the bottom layer is cured (see white without cement), you can brush the waterproof paint on it, and generally the two-component (single-component is also OK) or Sika is also a good waterproof. After stirring evenly, you can directly brush on the ground, the wall is generally brushed 30 cm, the position of the shower is brushed about 1 meter 8, generally brushed about three times, each interval is limited to people stepping on it without sticking to their feet, and the second and third times the direction is brushed in the direction of 90 on the previous time.

Closed water test: Generally, the closed water test is done three days after brushing the waterproof. Seal the position of the door with plaster or cement, and do it on the outside of the door, so as not to damage the waterproof when dismantling, and roll up the floor drain and sewer with a plastic bag and plug it.

Finally, put water in, generally put 5 cm deep, the family bathroom is generally done for 48 hours, if there is no water seepage below, you can release water.

Protective layer: wait for the water to dry, and then dry for half a day, you can use cement mortar as a protective layer, the ratio of general cement and sand is 1:2 on the line, sand to be sieved with a fine sieve, there can be no small stones, the protective layer does not need to be too thick, generally one centimeter on the line.

After this is done, when the ground is dry, you can lay bricks and other processes on it. This is the end, and there will generally be no problems for decades (except in a few cases: one.

The structure of the house is not good, resulting in cracks in the ground; Two.

Drilling holes in the ground or destroying the ground by external force).

The new waterproof coating, JS, water-based polyurethane, can meet the requirements you said, Sika mortar, buy it and brush it several times.

The waterproofing manufacturing method:

The toilet space of ordinary residential buildings is narrow, and there are pipelines passing through the floor slab, so the coating is commonly used for waterproofing and the membrane is rarely used for waterproofing.

There are 2 common types of paint waterproofing:

Synthetic polymer --- polyurethane waterproof coating (polyester cloth, glass fiber cloth, etc. are required for corners, etc.).

Polymer modified asphalt ---S B S waterproof coating (need to add carcass reinforcement materials, polyester cloth, glass fiber cloth, etc.).

Asphalt-based waterproofing coatings are basically gone.

Polyurethane waterproof coating is generally practiced as follows:

1: The ground is facing the slope of the floor drain direction, cement mortar or bean stone concrete can be, but the surface should be smooth. The slope near the door is small, and the slope near the floor drain is large, so you can grasp it according to the specific situation.

2: The pipeline passes through the root of the floor slab to strengthen the waterproofing. After the pipe root building sealing paste is sealed tightly, and the cement is smoothed and the foot pads are smoothed, the glass wire cloth reinforcement layer is 1 or 2 layers when brushing the waterproof coating. The same measures are taken near the floor drain.

3: The wall is clean and flat, without floating ash and small particles, and the junction of the wall and the ground is wiped with small original corners or slope corners. When brushing waterproof coating, paste 1 2 layers of glass wire cloth reinforcement.

4: The total thickness of the polyurethane waterproof coating film is required to be more than millimeters. It can't be decided by the number of passes.

The pipe root and the corner of the reinforcing layer are brushed first, and after the surface is dried at room temperature for 4h, then a large area is brushed and scraped. There shall be no leakage and bubbling. Brush a large area for 24 hours and then apply the next layer after curing.

6: The waterproof layer on the ground should be painted 300 wide outside the door of the bathroom. The waterproof floor waterproof layer should be 200 meters higher than the ground, and the wall waterproof layer of the bathroom with shower should be 1800 meters higher than the ground (L8 recommends waterproofing the full wall).

As soon as you get the house, you can do a closed water experiment and a suppression experiment, and if there is a water leak, you will be doing a change, and your water and electricity will be played, and you will have to do a suppression experiment to see if there is a water leak.

Clean the ground and dry it out, and then make the coil at a height of 30 cm on the ground and the wall, and be sure to bake the coil with fire when making the coil.