How to prevent leakage from roof waterproofing?

What is the best way to waterproof your roof?

There are two commonly used methods for roofing waterproofing, one is to use waterproofing membrane, and the other is to combine waterproof coating and mortar waterproofing agent for construction, but the most commonly used is the latter. Because the roof has to be eroded by the sun and rain for a long time, the simple use of mortar waterproofing agent is not flexible, and cracking may occur in the long run, so it is necessary to first paint a flexible K11 waterproof slurry flexible type, and then make a protective layer of mortar waterproofing agent, so as to meet the needs of waterproofing.

There are two aspects of roof waterproofing materials, one is the membrane, the other is the coating, the membrane and the coating should be exposed to the ultraviolet resistance, or the protective layer must be laid. If you are willing to spend money, you will choose TPO self-adhesive, very high-end membrane, which is particularly waterproof. However, for household use, it is still recommended to use coils, and choose coils that can be exposed by national standard coils, coils with shale surfaces or coils with light-colored protective films with reflective heat insulation.

Polymer cement-based waterproof coating is a two-component water-based waterproof coating, the liquid material is composed of high-quality polymer emulsion and a variety of functional additives, and the powder is composed of special cement and a variety of additives, which are mixed in a certain proportion when used.

How to make waterproofing for roof seepage.

The roof is waterproof, it will never leak, and the waterproof material has different service life because of the different quality and material. If you want to keep it leaking, you can add concrete cushion to protect against aging caused by environmental and other factors.

There are three main categories of roof waterproofing materials: waterproofing membranes, polyurethane waterproofing materials, and new polymer cement-based waterproofing materials.

Waterproofing membrane, a roll of waterproofing material made of asphalt, rubber or other organic materials, commonly known as linoleum or linoleum. It has good water resistance and good flexibility.

Polyurethane waterproof material: It is a one-component polyurethane waterproof coating made by mixing and other processes by adding and polymerizing isocyanate-containing prepolymers such as isocyanate and polyether, with catalysts, anhydrous additives, anhydrous fillers, solvents, etc.

New polymer cement-based waterproof material: It is a two-component waterproof coating composed of synthetic polymer emulsion (such as polyacrylate, polyvinyl acetate, styrene-butadiene rubber emulsion) and various additives optimized combination of liquid material and supporting powder (composed of special cement and graded sand), which is a waterproof material with high elasticity of synthetic polymer materials and good durability of inorganic materials.

The above waterproof materials have a service life, and if you want to increase the service life, you need to use concrete as a cushion to protect it.

1.Find out the location of the water leak: The first thing you need to do is find the location of the water leak, which can be determined by observing the condition of the roof and the location of the water stains.

2.Clean the roof: Clean up the debris and garbage on the roof to ensure that the surface of the roof is clean and clean.

3.Repair the damaged part: If you find a broken part of the roof and need to repair it in time, you can use waterproof paint or waterproof glue to repair it.

4.Painting waterproof coatings: Painting waterproof coatings on the surface of the roof, you can choose polymer waterproofing coatings, asphalt waterproofing coatings, etc.

5.Install waterproof layer: Install a waterproof layer on the surface of the roof, you can choose waterproof membrane, waterproof membrane, etc.

6.Strengthen the waterproof layer: Apply another layer of waterproof paint on top of the waterproof layer to enhance the waterproof effect.

7.Regular inspection: Regularly check the waterproofing of the roof, repair the damaged parts in time, and ensure the waterproofing effect of the roof.

The roof cracks are repaired first, and then the cracks are painted twice with water-based waterproof paint or wall seepage treasure transparent waterproof material, and the width of the coating gap should reach more than 20 cm, so as to ensure the adhesion. If the roofing material is special, such as rubber that is not suitable for waterproofing coatings, other waterproofing materials can be selected.

What is the cause of a leak in the house.

1. Pipeline leakage.

A large reason for pipeline leakage is installation problems, such as: leakage prevention treatment is not in place, construction is not careful, etc.; The pipeline is not fixed properly during installation and loosens; It is also possible that the position of the pipeline reservation is not accurate, and the concrete is not poured in place, resulting in water leakage.

Solution: Water pipe leakage will also lead to house leakage, so it must be accurately installed, standardized operation, meticulous construction, and carefully check the water seepage during installation. In the event of a leaking pipe, it is best to chisel the pipe and re-waterproof.

2. The waterproof layer of the roof is leaking.

In order to avoid the leakage of the waterproof layer, when making the waterproof layer, it is necessary to be careful in construction, standardize the operation, and finally check the water seepage. The leakage of the waterproof layer is mainly caused by improper construction; It is also possible that the quality of the waterproof layer material itself is a problem.

Solution: If it is a problem with the waterproof layer, you need to find out the leakage point first, and then shovel off the protective layer of the wall and ground to redo the waterproofing. Defeated.

3. The concrete is not fully tamped.

After moving in, some owners find that there is water leakage on the top and wall, and the wall is damp and has black spots, which brings trouble and trouble to family life. This situation is caused by the fact that when pouring the Loukai dry slab, the concrete is not fully compacted, and there are hollow drums, honeycombs, and hemp surfaces.

Solution: After determining the cause of water leakage, find out the leakage point, shovel off the protective layer at the leakage, re-repair and do waterproofing, and be more cautious in the secondary construction, and the waterproof test is also inevitable.

The roof is exposed to the sun and rain, and it is more prone to water leakage. Roof leakage will have a certain impact on the daily life of the penthouse rental, so we need to ask a professional to repair it as soon as possible. So what is the maintenance method for roof waterproofing leakage?

Next, I will briefly introduce it to you.

1. When repairing the roof waterproofing leakage, we need to investigate the leakage problem first, find the cause and location of the leakage, and repair the leakage point. For example, if the ground cracks are caused, they can be repaired with cement mortar; The unreasonable slope of the roof should also be repaired. Next, we cleaned the roof floor according to the waterproof scheme to ensure that the ground was flat, dry and free of impurities, and the yin and yang corners should be made into arc corners.

2. Next, we apply waterproof paint or pave waterproof membrane on the roof. The waterproof coating must be evenly painted without missing the brush, and the parts such as the parapet wall, yin and yang corners, and water outlets can be strengthened by using rubber asphalt paint and mesh cloth. If the painting is JS waterproof coating, it should be painted 2-3 times, the thickness of the primer should be about the right, and then the polyester non-woven fabric should be pasted after the primer, and the second time it should be painted on the non-woven fabric, and the direction of the painting should be perpendicular to the direction of the first pass.

3. After the waterproof coating is completed, we need to do a good job of maintenance. We can spread a layer of damp cloth on the ground, and the waterproof surface should not be exposed to the sun, but should be slowly dried. We don't allow unrelated people to step on the waterproof surface on the roof.

The roof is often exposed to the sun and rain, so when we choose a waterproof coating, we should choose a waterproof coating with good weather resistance, waterproofing and crack resistance.

We use different waterproofing materials, and their construction methods will be different, and we can consult relevant professionals for specific construction methods.

1. Fill the gaps.

Most of the roof leaks are caused by cracks, so when filling the leakage, you first need to fill the gaps with leakage paste, and then brush an extra layer of waterproof paint after drying.

2. Waterproof coating.

Waterproof coating is a commonly used material for roof leakage, first apply the water-based waterproof coating twice on the gap, at least 20cm or more. In this way, the adhesion force can be ensured, the warranty time is relatively long, and it should be noted that it cannot rain within 12 hours.

3. Pouring concrete.

If the roof leaks, you can also pour a layer of concrete directly on the roof, or you can pour a layer of concrete directly on it after the waterproofing membrane is made.

The specific method is: first use fine steel bars to pave the roof into a net, and then use a pump truck to pour concrete on it, and after watering, it needs to be cured for about half a month, and cover the surface with a covering.

Here, I would like to emphasize the importance of the roof insulation layer. In areas where acid rain is heavier, humidity is high and corrosive, the common practice is to brush the cold bottom oil on the flat layer as an isolation layer, and then pour the rigid waterproof layer, in order to ensure that the roof does not leak during the three-year warranty period, and make a two-cloth three-oil waterproof layer on the rigid layer.

When the house is accepted, the black roof looks beautiful, but it is not good. In order to avoid this kind of situation, tailor-made in the construction, develop the strengths and avoid the weaknesses, and make the waterproof layer of the two cloth and three oil membranes on the surface between the leveling layer and the rigid layer, which not only plays the effect of the isolation layer, but also does not be exposed to the sun and rain, which not only avoids the aging of the ointment, but also plays the waterproof effect.

The method of roof waterproofing and leakage repair is as follows:

Preparation of materials for imitation keys: foaming plugging agent, shovel, etc.

1. Use a shovel to shovel off all the waterproof layers on the roof and redo the waterproofing, which is the basic method of thorough waterproofing.

2. Chisel along the cracks, plug the joints with the plugging agent, and block the leakage place.

3. Use foaming plugging agents, such as PU, to fill and plug leaks along the cracks.

4. Groove and bury the dark pipe in the roof perlite aquifer, and drain the water through the floor drain and other parts to eliminate the stagnant water as much as possible.

There are several ways to check if your roof is leaking

1. Inject water and soak.

The water level of the closed water test should be 2 meters above the top of the upstream pipe in the test section, and the water should be irrigated to the height close to the upstream wellhead. During the water injection process, the pipe plugging, pipeline, and well body should be checked for no water leakage and serious water seepage, and the closed water test should be carried out in the soaking pipe and well for 1-2 days.

2. Closed water test of wax stool.

Irrigate the water to the specified water level, start recording, measure the amount of seepage time, not less than 30 minutes, calculate the amount of seepage according to the decline value of the water surface in the well, and the amount of seepage does not exceed the specified allowable amount of seepage is qualified.

3. Calculation of test seepage volume.

When the water seepage test time is 30 minutes, the water seepage per km pipeline per day and night is Q = (48Q) * (1000 L), in the formula Q - the seepage water per d of each km pipeline, Q - the seepage water volume of the closed water pipeline for 30 minutes, L - the length of the closed water pipe section When q allows the seepage water, the test is qualified.

Waterproofing of roofs and leakage walls are common problems in home construction. If left untreated, they can all lead to greater losses or even jeopardize the safety of the home. Here are some ways to deal with roof waterproofing and wall leaks:

Roof anti-blocking source water: 1Check the roof: First of all, you need to check the condition of the roof to see if there is any damage, aging, damage, etc. If there is a problem, the roof needs to be replaced in time.

2.Clean the roof: Clean up the debris on the roof, including branches and leaves, garbage, fallen leaves, etc., for better waterproofing of the roof.

3.Waterproofing: Use waterproof paint to apply to the roof to ensure that the roof does not leak.

4.Establish a drainage system: Establish a drainage system on the roof so that the water flows smoothly to the ground without clogging the drainage system.

Wall leakage: 1Find out the cause of water leakage: First of all, you need to find out the cause of water leakage on the wall, such as cracking, water seepage, aging and other problems.

2.Repair the wall: Repair the wall and repair the broken and aged parts with professional materials.

3.Add a waterproof layer: apply waterproof paint or waterproof membrane to the wall.

4.Install waterproof barriers: Install waterproof barriers near water pipes to ensure that the walls are no longer seeped into water.

In short, for roof waterproofing and wall leakage problems, it is necessary to find out the cause in time and then choose the right way to deal with it. If you can't solve the problem yourself, you need to find a professional waterproof company to deal with it.