House walls are often affected by external weather factors. Therefore, if you do not perform a careful waterproofing from the beginning, it is easy to crack or leaking to affect the quality of the wall. It can be said that waterproofing has a great importance for the wall, especially the outdoor wall to ensure the wall is durable and quality over time.

As the architect recommends, you should use high-grade exterior paint will help waterproofing more effective. However, in addition to the use of paint quality, painting techniques also determine the waterproofing ability of the wall. To help you have more experience, the article below we would like to share some techniques for exterior waterproofing wall paint for your reference:

- For used wall

When doing waterproofing for used walls, the first thing you have to do is to clean the wall surface including: dirt, moss, handle cracks on the wall, ... The purpose of cleaning is to increase the adhesion of the waterproofing paint to the wall surface.

The wall surface to be painted waterproof requires clean, airy, humidity must be less than 16%. First, you need to paint the anti-alkali coating, wait for the paint to dry before painting 1-2 waterproof coating.

- For new house walls

According to experience you should perform waterproofing from the beginning, the efficiency will be higher, so right from the new building, you combine the waterproofing.

How to do the following: You use wall plaster castings for outdoor walls then cover the surface. Use a special tool to smooth the surface, then paint a primer, followed by waterproof paint.

+ For leaking roofs

In case of roof leaking you can perform waterproofing by filling the cracks with a mixture of cement, sand and waterproofing with a thickness of about 1cm. After the waterproofing is done, you can check by pouring water to the area to see the problem of waterproofing. However, for the old corrugated roof, this is only a temporary measure, it is best to replace it so that it does not affect the entire building.

Here are some methods of waterproofing outdoor walls are quite simple, easy to implement you can overcome the problem of leaking walls. However, again we would like to note that it is recommended to perform waterproofing right from the beginning to ensure the best effect.