How to waterproof the window sill of the exterior wall

1. Wall inspection.

First of all, when treating the waterproof wall, the wall must be inspected to see if there are any cracks or uneven places in the wall, which need to be treated before the wall can be waterproofed. It is strictly forbidden to leave gaps, cracks, unevenness and inequality on the wall, and the pipe that enters the room from the outside should also be sealed well through the wall. Such a wall can be waterproofed, otherwise the effect will be greatly reduced.

2. Construction of waterproof leveling layer.

The following precautions should be paid attention to in the construction of the screed.

The mortar should be strictly proportioned, strictly measured, control the water-cement ratio, and it is strictly forbidden to mix water at will during the construction process;

The plastering mortar should be plastered in layers, especially in high-rise buildings, the local exterior wall plastering is thicker, which requires layered batch plastering, and the thickness of each layer of plastering should not exceed 2, if the thickness is too large, steel wire mesh should be set at the layered place;

Batch of lime mortar can be polymer waterproof mortar;

Exterior wall plastering, scaffolding, tension joints, etc., should be cut, the bell mouth is plastered and flattened, and after the slurry is fixed, it can be cut into reverse rubbing with an iron trowel, and then brushed with a plain cement slurry.

3. Ensure quality.

The quality includes the quality of door and window construction and the quality of roof construction.

Construction quality of doors and windows: Before the installation of exterior wall doors and windows, it is necessary to check the size of the door hole and deal with a large dimensional deviation, so as to avoid the influence of too large or too small seams around the window frame and the quality of the weld, and the width of the frame edge and the incident slit is generally required to be between 20 mm. It must be installed according to the specifications, horizontally and vertically, and fixed for the acceptance of concealed works.

Roof construction quality: The roof is very related to the exterior wall, and the design and construction of roof nodes are very important. It should refer to the standards of "Technical Specifications for Roofing Engineering" and "Specifications for Quality Acceptance of Roofing Engineering".

Window sill leakage is a very annoying thing in our daily life, in fact, it is better to do a good job of protective measures at the beginning of the time, to prevent the window sill leakage situation, how to do the window sill waterproof treatment? 1. Sealing of window frames. First of all, the rain shield at the junction of the window frame and the concrete body needs to be attached to the concrete body, and the holes of the screw caps and concrete screws for fixing are filled with polyurethane sealant.

The purpose of this is to make the connection between the window frame and the wall more close, to prevent the gap at the interface caused by too long time, so as to avoid the phenomenon of rainwater infiltration on the window sill on rainy days. 2. Treatment of the basal layer. In addition, after the sealing process is completed, we also need to carry out certain special treatment on the base layer of the window, that is, we need to install a water blocking plate on the inside of the window width, so as to be more effective in waterproofing and leakage.

In the selection of water-blocking boards, we should try to choose some durable and quality-assured brands. 3. Removal of impurities. After a long time, it is easy to accumulate some impurities, so when doing the waterproof treatment of the window sill, we need to remove part of the sealing material that cracks due to aging, and we need to clean the sealing part, and we must make sure that there is no oil, dust and other impurities on the surface.

This is also for the life of our waterproof project to be extended a little more. 4 seam sealing. The most critical part of waterproof treatment is the sealing of the joint, which is also the most difficult part of the waterproof treatment, you need to use waterproof powder to mix a certain proportion of waterproof sealant, adjust the two into a super adhesive waterproof sealant, fill the seams of glass and aluminum alloy, and fit tightly.

Also carefully check if there are any places that fit well. 5. Partial filling. In addition, local areas also need to be repaired and tightened with high-quality special glass structural adhesives, which require a smooth and smooth surface, and no chips and holes.

The practice of waterproofing treatment of window sill is introduced, and the practice of waterproofing treatment of window sill is more troublesome, but it is a very important thing, so if the waterproof treatment of window sill is not treated well, it is easy to cause leakage of window sill.

Now there is transparent waterproof glue, use a brush to brush the transparent glue on the side of the window, and apply it evenly.

The common cause of water leakage on the wall around the window is the loosening between the window and the frame, and the window should be repaired or replaced directly. It should be noted that you should not choose inferior waterproof sealing materials. Be sure to buy windows, window frames, sashes, and seals that pass the quality test, and the materials purchased should have a certificate of qualified quality to ensure that the quality of the materials meets the requirements.

Solution: Redo the sink or waterstop line, if it is inconvenient to slot, you can bond a raised line along the exterior window to play the role of the waterstop. Sun Gong once thought that the position of the waterstop on his balcony was a bit inward, which caused the balcony to accumulate water, so he installed a waterstop line along the extension.

The material is the aluminum alloy right-angle edge strip used for the root floor closing, which is glued with glass glue and fixed with screws.

First of all, it is necessary to find the cause of water seepage in the wall, one is because of the leakage of the embedded water pipe in the wall, which is mostly found near the bathroom, or the top surface, or the wall, and generally there is leakage in the joint part of the embedded water pipe.

Again, the wall seepage is because the masonry mortar of the masonry is not full, the ash joints are hollow, and the capillary channel-shaped sand hole appears, resulting in water seepage in the wall; Or when painting the wall during decoration, the first wall paint is not dry, and the next wall paint is painted, and the water vapor in the wall has not volatilized, resulting in water seepage on the wall.

Decoration Da Cui explained that the decoration of the new house must pay attention to the height of the internal and external window sills, ignoring this point is very easy to appear window seepage. Hope it helps you with the renovation.

The general water seepage situation is shown below:

It is caused by the poor contact between the window frame and the wall. Solution: Clean the contact position between the external window frame and the wall and seal it with 995 structural adhesive.

Hello, the simple way to deal with the leakage of the window sill in general is:

1. Clean the base surface and moisten it thoroughly.

2. Fill the gaps with caulk if there are obvious cracks.

3. Brush three to four times with acrylic high-elasticity anti-crack waterproof coating along the aluminum alloy frame, and the next time the surface can be painted after each surface drying.

Note: If there is an anti-theft net, the nail that fixes the anti-theft net must be sealed with paint.

In fact, it is better to find a professional to help you deal with it! In the future, choosing a better decoration company before decoration will also reduce this kind of problem!

1. Remove the window sill board, remove a layer of sand and ash around the window 2. Re-powder the high-grade cement and install the window sill board.

3. Outside the window, the contact position between the window frame and the wall is smeared with the plugging king 4. The inner side of the wall is waterproofed.

If you find a window leak, you should find the cause of the leak in time, and then find a solution, the window leakage in winter will make the house damp, affect your health, and if you don't solve it early, it will also cause problems on the wall.

This is the window sill is not done well, the window sill should do a slope from the inside out, this slope is preferably 3%, you chisel off the window sill surface and wipe a slope again.

Provide free professional technical consultation for concrete waterproof leakage repair.

The window sill seeps water into the wall, and the joint between the window and the wall is generally not done, as long as the joint is treated. Specializing in providing water seepage problems in family houses, free technical consulting services.

Are you sure it's the windowsill seeping water in?

1. Chisel out the decorative surface layer of the window sill.

2. Paint with waterproof coating.

3. Water shutdown test.

4. Restore the ...... of the window sill decorative layer

It is okay to isolate with tin foil, and you can also go to the market and ask for professional workers.

<> "Water will seep into the interior at the edge of the window, mostly because the waterproofing of the exterior wall or connection is not in place, so what is the waterproof treatment method for the exterior wall window? Let's find out.

1. What is the waterproof treatment method for exterior wall windows?

1. Fill the gap between the external wall and the window with weather-resistant sealant to ensure that the two are connected more tightly and can also have a sealing effect.

2. Clean the exterior wall windows around them to avoid dust, particles, etc., and install glass fiber mesh cloth at the corner of the window to strengthen the connection and avoid oblique cracks.

3. Brush with waterproof mortar to ensure that the brush is in place.

2. What are the causes of water leakage in exterior wall windows?

1. Insufficient sealing.

If the edge of the exterior wall window is vibrating, the connection between the HI window frame and the exterior wall is to be sealed with sealant, if it is a material quality problem, or the use time is long, aging and other situations, it will fail, and when it rains, the rainwater will seep into the gaps and leak.

2. Improper elimination of holes at the window sill.

Under normal circumstances, the inner window sill should be about 2cm higher than the outer window sill, so as to play the role of water stop, and there will be no water flow into the outer window sill. At the same time, if the slope of the external window sill is not properly handled, there will be water leakage, and the slope should not be less than 5%, otherwise there will be flooding, or water erosion and infiltration.

3. No drainage holes are made.

This situation generally occurs on the sliding window, because the sliding window is grooved, and the rainwater will enter the trough when it rains.

1. Strictly control the quality of materials.

If the water leakage caused by the quality of the window itself is damaged, the window needs to be repaired or replaced directly. The quality of the purchased window frames, window sashes, sealing strips, etc. should be passed, and the waterproof sealing materials used should have material quality certification documents to ensure that the quality of the materials meets the requirements, and do not choose inferior sealing materials.

2. Reseal the gap.

If there is a water leak caused by the gap between the window frame and the wall or window sill, the gap can be resealed. For the gap between the outside window frame and the wall window sill, it is best to remove the original seal and fill in the weather-resistant glass glue for sealing; For the gaps between the window frame and the window sill outside, it is best to remove the original seal, fill in the weather-resistant glass glue for sealing, and then seal it with mud mortar for waterproofing.

3. Keep the window drain unblocked.

For leaks caused by clogged gutters in the window frame, keeping the gutters open can solve the problem. If there is a problem with the location of the drainage hole, the original hole needs to be closed and reopened.

4. Redo the waterproof layer of the window wall.

The window wall itself is leaking, the solution is to knock on the outer wall, repair it, check whether it is firm after repairing, and remember to lay a waterproof layer.