What should I do if the high-rise exterior wall seeps? How to prevent water seepage from high-rise exterior walls?
For living in high-level friends, they as a whole are facing a problem, and that is how to do water seepage wall of a house, not to join as soon as possible, then, for their original decoration of the house will result in a corresponding loss, high-rise facades What to do with water seepage and what is the reason is not necessary to know. Only in this way can we deal with problems in a timely manner when problems arise. Then let's take a look at the decoration home decoration network Xiaobian!
What is the cause of water seepage in the high-rise exterior wall?
1. Reasons for water seepage in the outer wall of high-rise residential buildings
(1) Factors in the construction of infill walls
The construction unit generally has strict requirements on the frame and structure of the main body, but it has not paid enough attention to the construction of the infill wall. Remove the plaster layer on the inner wall from the water seepage part of the outer wall. You can see that the vertical seam of the wall has “quiltingâ€, some gray seams are even transparent, and some scaffolding eyes are not sealed with bricks, just for casual use. Some mortar is plugged, causing holes in the inside and "pasting windows" outside.
(2) Factors in decoration
The cleaning of the outer wall brick base is not clean, the base layer treatment is not in place, the leveling layer is thicker, and the brickwork does not pour the water, resulting in cracking and emptying of the leveling layer. On the spot, the joints of the bricks are not smooth, not full, and not serious. There are a lot of “quilting†in the joints of the bricks. The mortar on the back of the bricks is not full, and there are water channels, seams and joints are used. The treatment of plain cement slurry is the cause of water seepage in the outer walls of high-rise residential buildings.
(3) Installation factors
When the rainwater pipe is installed, the root of the supporting angle steel is not sealed with mortar. When some households are installed in the air conditioner, the bolts for the fixed protective frame are not sealed with mortar; the outer wall pipe is not blocked tightly. All these factors are Leading to the seepage of the outer walls of high-rise residential buildings.
(4) Factors in the installation of aluminum alloy windows
The sealant between the aluminum alloy window frame and the wall is not dense enough, some are too thin, and some are lost in waterproofing. The strips installed between the glass and the sash have broken, cracked, not in place and cornered, causing too much gap between the sash and the glass. The sliding track of the aluminum alloy window has no drain hole. When it encounters heavy rain, it forms water and seeps into the room.
Second, measures to prevent water seepage from the outer walls of high-rise residential buildings
(1) Designing exterior walls with low water absorption blocks
The moisture content of the block is controlled within a certain range, and the mortar for the masonry should be cement mortar. The mortar ratio should also be strictly controlled to ensure the strength of the mortar and improve the water resistance of the mortar.
(2) Governing the defects of the wall
When the overhanging scaffold is removed, all the steel pipes in the wall should be removed, and then the mortar should be used to block the holes. After the outer wall is demolished, the bolt holes should be dug into the shape of the bell mouth and blocked with mortar.
(3) Remedying the crack in the joint
The contact between the strong beam and the block should be about 600 mm along the height of the column or the wall, and the knotted steel bar should be placed in the gray joint of the wall. When laying bricks, the knotted steel bars should be pressed into the gray joints to improve the resistance of the wall. When the block is close to the bottom of the beam of about two hundred millimeters, it should be separated by about fifteen days to ensure sufficient settlement of the block.
(4) Exterior wall construction
In the thicker parts of the exterior wall, layered construction should be adopted, and the inner layer should be provided with steel mesh to control the proportion of plastering mortar. The decorative surface of the outer wall must be guaranteed to be both waterproof and aesthetically pleasing.
In the exterior wall veneer bricks should be strictly controlled quality, comprehensive and careful inspection to avoid the phenomenon of empty drums. The gray seam of the tile should be controlled to be more than eight millimeters. When hooking, the horizontal seam should be hooked first, then the vertical seam should be hooked. After the gap of the tile is hooked, wipe the tile surface clean.
(V) Strengthening construction management
In the process of construction, the construction procedures should be strictly implemented, and subcontracting, subcontracting or rushing period should not be carried out. Scientifically and reasonably determine the project cost. All in all, the seepage of high-rise buildings not only affects the aesthetics, but also affects the function of the house. In the process of construction, we should pay attention to the details, strengthen quality supervision and dynamic management, and resolutely prevent various quality problems.
What should I do if the high-rise exterior wall seeps?
1. When the outer wall is waterproof, the outer wall must be cleaned, so that there is no oil on the surface of the wall, and no dust or cement particles are left in the holes and the gap.
2. Waterproof powder for exterior wall waterproofing and JS composite waterproof coating are mixed into a repairing paste according to the ratio of 3.5:1, and all the cracks between the tiles are filled well.
3. When the external wall is dry, spray the outer wall with silicone water repellent. Silicone water repellent is an environmentally friendly product that does not change the original color of the wall, and does not easily attract dust, and does not affect the effect of the decorative brick.
The above is how Xiaobian’s high-rise exterior wall seepage is introduced today and how to prevent it from ending here. I want to help those friends who live in the high-level through today’s introduction. For more information, please stay tuned to the home of the decoration.
More related wonderful reading:
External wall waterproofing construction steps External wall waterproof construction precautions
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How to waterproof the exterior wall? External wall waterproof construction technology
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