As you know Vietnam is a tropical country, humid, rainy often. The walls are often subject to tremendous impacts from UV rays (heat radiation from the sun), erosion from rainwater (acid rain, the heavy metals contained in it,...), moisture, the difference. The temperature difference is too large, cracking the structure of the house wall, affecting the aesthetics and durability of the building.
To help you better understand the reasons and solutions for waterproofing walls, we would like to share with you the following article.

1. The cause of the leak:

- Construction of non-standard construction:
Because of the nature of concrete has elasticity and elasticity. So when the construction process does not meet the technical standards (reckless construction, carelessness, unsuitable construction materials), moreover, the "eat less" works will make it work for workers. gaps in the texture. Thus, the rainwater will seep in and cause leaks phenomenon.

There are 2 types of leaked building structures:
+ Underground structure: Basement, underground tank, ...
+ Floating structure: Outside wall, roof floor, balcony, ...

But it is more permeable than open buildings to be in direct contact with the natural environment.
- Impact from weather:
It is easy to see that our country is located in the humid tropical monsoon region (very sunny, heavy rain), there is a high temperature difference, erratic rain and sun.

Therefore, this influence from the climate will make the building surface have the phenomenon of expansion, shrinkage, cracking and destruction of the structure of the material causing the building to leak.

- Osmosis between capillaries of construction materials:
In theory, all materials have capillaries (spacing between particles) with a diameter of about 20 to 40 micrometers (µm).
So when exposed to water, it will follow the gap into the capillary into the interior and cause leak for the building.

2. Consequences and damages of leakages:

Currently most of the wall projects are waterproofed like Kova waterproof paint, intoc waterproof paint, ...

However, longevity of waterproof paint is quite short, especially if it is not properly constructed, it will make the project degraded and potentially dangerous, high risk of leaking.

- Losing aesthetics: First of all, it is the aesthetic problem, yellow stains, moss appear cracks in concrete. In addition, if your roof floor is not waterproof, just a few rains will have patchy water stains, the paint color will gradually make the house, you spend much money worse.

- Moldy environment easily affects health:
The leaks makes the environment in the house become wet, especially in the rainy season. Anoxic places such as a footwall will be a good condition for the mold to grow quickly. These molds contain millions of bacteria that, when inhaled, will lead to respiratory illnesses such as rhinitis, tinea, etc..., which are very dangerous for children and the elderly who have weak immune systems.

- Potential risks from fire and explosion:
According to statistics, most of the current fire and explosion are caused by the wall of the house was leaked. Wet sound not only creates mold but also carries a deadly danger, although electrical appliances that are recessed in the wall are considered to be safe, but prolonged exposure may lead to a short circuit, explosion.

Through the above analysis, we can see a little about the damage as well as the danger of leaking to the wall. So to avoid the consequences, as well as to ensure safety for life, the waterproofing of walls is extremely important because:

- The first is to improve the aesthetics of the house.
- Ensure safety for daily living.
- Protect the building from the destruction of nature, extend the life of the project.

3. We would like to summarize the wall waterproofing solutions as follows:

3.1. Apply to new houses:

For new houses we do not need to clean. We use acrylic waterproof paint (Sika Raintite acrylic waterproof wall paint) to cover the entire wall. For exterior walls and this type of paint we paint from 2 or more layers.

- Want to paint the next layer we have to wait for the previous layer to dry before painting again, thus achieving the best waterproofing effect.

3.2. How to waterproof old house walls:

- First, we need to scrape off the peeling paint, clean the moss and yellow stains.

- Find gaps, cracks. Make a wide and deep chisel about 3 to 4 cm around the cracked area.

- Use a high pressure hose to clean cracks as well as the surface to be constructed.
- Use specialized materials to seal the break.

- Covering elastic waterproofing membrane on the construction surface.

3.3. How to waterproof adjacent houses:

In big cities almost houses are built close to each other, almost no gaps.
Some methods of waterproofing adjacent houses:

- Waterproofing of adjacent walls by treating gaps with water troughs:

Because the adjacent wall has a small gap, it is a position where water easily penetrates. Therefore, the most effective method is to make corrugated iron to prevent water from flowing into this gap.

- Waterproofing adjacent walls when starting construction: 

This is the most effective measure, which saves time. At the construction site in the adjacent position, we use solid bricks combined with masonry mortar, mix concrete with waterproofing and plastering. The minimum requirement for the thickness of the contiguous surface is 220mm to ensure no leakage.

4. Commitment to our waterproofing service:

- Always use the best waterproofing materials, the most modern waterproofing technology.
- Commit to handle 100% of the wall seepage phenomenon.
- Free consultation, the most optimal and fastest wall waterproofing solution.
- Meet all requirements from customers, always make customers satisfied with the project.
Please contact us for a free consultation, offering the most effective and optimal solution for customers.

Waterproofing Hung Thinh - Hands instead of words to say!
HEAD OFFICE: 342 Hoang Van Thai, Lien Chieu District, Da Nang City.
Hotline: 098.777.4268 & 0769.18.6886
We are honored to serve you.
Hung Thinh - Very pleased to serve customers.
Sincerely thank you !