Water seepage on the exterior wall? Learn this trick to solve your worries-beauty sewing agent factory

I believe many owners will find that when it rains heavily, their house is very damp, and in severe cases, the walls may even see water. This is caused by the fact that the walls were not waterproofed during the construction. In recent years, with the increasing diversification of building forms and external walls, the expansion of the application of new wall materials and the promotion of external wall insulation practices, in the field of engineering waterproofing, compared with roofing and underground engineering, external wall leakage The problem is more prominent, not only affecting the normal use of the building, but also causing a certain impact on the indoor environment. External wall waterproofing is different from indoors. Let’s take a look at some knowledge about external wall waterproofing with the editor today. Why do external wall waterproofing □ The external wall seeps into the inner wall, causing indoor water seepage. Because the masonry mortar of the wall is not full, the mortar is empty, and the capillary channel appears to form a siphon effect. The texture of the interior decoration surface is loose and the capillary is easy to be thin. The water in the holes is scattered, the thickness of the plastering on the outer wall is uneven, and the outer wall caused by the rain to seep into the inner wall, causing the indoor environment to become humid. What to do if the external wall seeps into the internal wall, find the existing water seepage point on the wall and the cracks in the external wall, and remove the plastering layer of the external wall at the interface of the masonry and the structural beam along the cracks, the cracked plastering layer of the external wall and the large external wall If the area is cracked and cracked, a hand-held cutter is used to cut the plaster layer before chiseling to prevent new hollow drums due to vibration when chiseling the plaster layer. , After chiseling off the plaster layer, clean up the base layer, and then spread a layer of steel mesh between the masonry and the structural beams to prevent the plaster layer from cracking again. , Repair the plaster layer, the plaster layer is repaired in two to three times, and a certain amount of micro-expansion agent is mixed into the repair mortar to reduce the interface cracks between the new and old plaster layers. , After the plastering layer is dry, do the exterior wall paint. After the wall paint is dry, apply one or two layers of waterproof film. For exterior wall waterproofing, look for K nano waterproof material from the US joint agent factory. What should be paid attention to for waterproofing of external walls? The leveling of external walls should be layered with dust. , After finishing the exterior wall tiling, make joints in time. , After the doors and windows are installed, the area around the window frame is sealed. After the doors and windows are installed, the outer opening of the brick veneer behind the cement mortar must be lower than the inner opening. , Pay attention to the weather forecast before construction, and avoid construction work when rain and snow are coming. , After the brushing tools are used up, remember to clean them up in time. Three major misunderstandings of external wall waterproofing knowledge □ Misunderstanding 1: The wall is a vertical surface, which is not prone to water seepage. Although the wall is vertical as a whole, under the action of wind, especially in typhoon weather, the water volume on the wall will be large. The pick boards, stitching, split seams, window sills, etc. on the wall will cause rainwater retention. The rainwater staying on the wall enters the wall through the capillary action of the mortar, the tiny hole defects on the wall or the cracks in the plastering layer, and sometimes the leakage is intensified under the action of wind pressure. □Misunderstanding 2: Facing bricks have waterproof function. When impervious (low permeable) facing bricks are used for exterior wall finishing, most people think that the exterior wall has better waterproof function, but the fact is that the external wall of the facing brick has better water leakage than paint External walls are more common and more serious. The joints of the facing bricks are treated with special jointing materials or cement mortar, and rainwater will enter the wall from the joints of the facing bricks. There are the following reasons for water ingress in the splicing joints: ①The joint joints are not tight, and there are holes and leaking joints, especially the external corner joints, which can hardly meet the requirements of tight joints; ②The interface between the material and the tile is due to the temperature difference. Due to shrinkage of mortar, micro-cracks are common, and rainwater enters the wall in large quantities through capillary action and wind pressure. □Misunderstanding 3: Exterior wall paint has a waterproof function. The exterior wall paint of good quality does have a certain waterproof function, but this function is a subsidiary function of the exterior wall paint and is not permanent. There are three reasons for the leakage of water on the exterior wall of the paint finish: ①The plastering layer on the wall cracks, causing the paint to crack and water; ②The paint is aging, and the coating is cracked and peeled; ③The wall joints are not waterproofed, causing There is a lot of water ingress, and the problem of water ingress in the split seams also exists on the brick wall. Since it is talking about external wall waterproofing, the choice of waterproof coating must be indispensable. Here, the editor recommends a K-nanometer waterproof material from Meiji Factory: Meiji Factory K nano waterproof coating is a two-component, acrylic Cement-based waterproof material modified by high polymer. The powder and additives are mixed and chemically reacted to form a tough and elastic waterproof membrane. The film has good adhesion to concrete and mortar, and can form a tight, firm and permanent bond with it to prevent water penetration. Suitable for walls and floors of indoor and outdoor buildings, such as tunnels, bridge decks, basements, kitchens, balconies, toilets, swimming pools, reservoirs, etc. It has excellent impermeability, waterproof and breathable, can be constructed on wet ground, high degree of bonding, short curing time, safe and environmentally friendly, non-toxic and harmless.
Water seepage exterior wall