Pipe, floor drain waterproof
Water leakage from pipelines and floor drains is also relatively common. Toilets and balconies, which often have water, must be sloped to facilitate drainage. In addition, waterproofing must be done. Most of them use flexible waterproof coatings, which are characterized by elasticity, ultra-thinness, and no maintenance. Like Henkel Midland and quick seals, they are all brands that are more commonly used. For example, Loyal is a rigid material, if it does not reach it. The required thickness of 2 mm or more is very easy to leak.
Before doing waterproofing, first clean the wall surface, mix according to the ratio and stir until no agglomerates, allow the slurry to stand for about 3 minutes, and stir for another 30 seconds.
The seams and floor drains of the house pipes and floors are places that are prone to leaking water. Use tools to clean the area around and brush the waterproof material several times.
Let the waterproof layer close to the base, sealed tightly, waterproof brush from the inside out. Although the new home is a bit better, it doesn't hurt to brush a few more times.
Waterproofing Apply at least two coats in a criss-cross method. When the first coat cures and produces sufficient strength, proceed to the next coat. The total coating thickness must be at least 2 mm. To a certain extent, the thickness of the waterproof layer is proportional to the strength.
Many decorating companies couldn't think of this. In fact, it is very simple. In the place where the wall surface is finished trough, a layer of waterproof paint can be applied around the hole. It is perfectly safe to wait until all the walls are finished and then brush it again.
After waterproof construction, there is another important step: closing the water test. Seal the door and the water outlet, mark the water at a certain height on the ground, check whether the water level has dropped after 24 hours, or see if there is any water stain on the ceiling of the downstairs. If there is water leakage, waterproof should be done again.
Waterproof doors and windows
The tight sealing of the joints between the doors, windows and walls will cause rainwater to seep through the gaps, especially for some families who have converted the balconies into dens or tatami mats. The waterproofing of the windowsill must be done well.
Waterproof sealant should be used at the interface between the window frame and other materials, and it must be compacted like foaming agent or silicone.
Many ledges have an outwardly facing slope that prevents rain from seeping inside. If the slope is destroyed when the old building is demolished, workers can be rebuilt.
The concrete surrounding the window should be sealed with water-repellent agent, and the concrete filled with water repellent will not seep water inside the concrete, but normal concrete will not achieve this effect.
Top floor waterproof
Most of these situations will occur in the top floor of the old public house or in old houses. The roof waterproof layer has been exposed to rain and rain for a long time, and it has repeatedly swelled and contracted. However, the previous materials did not have very good characteristics and it was difficult to achieve the required waterproof age, but this is generally a property. Come to repair.
If you want to repair the best use of SBS modified asphalt membrane, the price is generally 20-40 yuan / m2, it's aging resistance, corrosion resistance are very good.
When applying a hot-melt method to a web, the flame heater heats the web to be uniform, adequate, and moderate so that it is densely connected to the screed.
After the membranes are laid, check whether the joints are occluded. However, from the current point of view, the "flat change slope" can maximize the roof drainage, waterproof and heat insulation problems.
Precast board waterproof
The floor of the new house is cast in place with reinforced concrete. Many of the old houses are of brick-concrete structure. The floor slab is also a prefabricated plate. Cracks are prone to cracks between the plates over a long period of time, and it is feared that the waterproof layer will crack together with the floor slabs and be waterproof. Pay special attention to these gaps during construction.
You can't see where there are cracks and go downstairs to see if the housing is old. Basically, there is no settlement problem. Just focus on cracked floors.
After finding the cracked floor slab, cut a V-shaped groove about 50mm wide and 30mm deep along the slab seam, clean it with epoxy mortar, and use the mixed mortar within 2 hours.
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