WATERPROOFING TERRACE SIMPLE AND EFFECTIVE

Post date : 27/05/2021

WATERPROOFING TERRACE SIMPLE AND EFFECTIVE

1. Causes of rooftop seepage

Currently, terrace waterproofing is not too strange for constructions in Vietnam. With a very harsh tropical monsoon climate, the roof and balcony floors are the places that are most affected by rain, wind, sun, UV rays, acid rain containing heavy metals... cracks, causing seepage.
The surface of the concrete roof floor, the terrace is an area that is heavily affected by the outside, making the roof floor regularly permeable, cracking crow's feet, water does not drain, leading to seepage, or separation permeation layer. Here are some consequences of not waterproofing the terrace:

Những sự cố khi không chống thấm sân thượng

Problems when not waterproofing the terrace

Waterproofing of terraces, concrete roof floors is an essential thing that any project needs to do, otherwise it will lead to concrete damage, rusting close to steel items… Hereafter, Hung Thinh waterproofing will guide Guide you to waterproof the terrace in the simplest but most effective way.

Sweep waterproof membrane

So to ensure that the roof waterproofing is effective, first we need to choose the right waterproofing material, but before that we need to find out the cause of the roof leak.
Causes of roof leaks:
There are many reasons for the above phenomenon, but with our long experience in the profession, we summarize the main reasons as follows:
- As mentioned at the beginning of the article, the terrace is the place that is most affected by the environment. If there is no slope for drainage, it will cause stagnation, which will eventually lead to seepage.
- Due to the surrounding wall and roof floor, there will be openings.

Crack treatment

- Due to poor foundation structure, substandard concrete quality causes the roof floor to crack.
- The previous construction process of waterproofing the terrace was not satisfactory, the process was not followed, the quality of the waterproofing membrane was not good….
- Before tiling, do not test the water (check the previously coated waterproof layer).

2. Treatment plan

From the above reasons, we offer 3 popular and effective methods as follows:
- Use two-component cementitious waterproofing admixture.
- Adopt high elastic polyurethane waterproof material (most popular today)
- Use hot torch or cold film.

Waterproof membrane when finished

Solution given for terrace waterproofing:
- First, we reinforce waterproofing for wide holes, cavities, cracks with Sika Latex oil and non-shrink compensating mortar.
- Carry out technical treatment at expansion joints, pipe necks through the floor, drain pipes by wrapping the expansion rubber bar (hydraulic rod) and then pouring non-shrink grout.
- Preparing the surface for waterproofing the terrace:
+ Clean all dirt, impurities, remove dirt to ensure the construction surface is clean and not rough.
+ Large cracks need to be chiseled out 2-3 cm and filled with repair mortar and specialized waterproof glue.

3. Waterproofing process

In this article, we would like to present a solution for waterproofing the roof floor with Polyurethane materials.
Waterproofing roof floor with Polyurethane material
Step 1: After cleaning the surface, we proceed to waterproof the floor drain pipe:
Use a machine to chisel the neck of the pipe from 2 to 3 cm, in a V-shape, clean the dust and then wrap the swelling gasket around the neck of the pipe. Next we mix the grout without grout and proceed to pour it into the neck of the pipe when it is sealed.
Step 2: Waterproofing the base of the wall (an important part)
Spray or sweep Polyurethane  for the base of the wall (can be thicker than the surface because the base of the wall is more prone to seepage), then proceed to roll the first layer for the surface of the roof floor that needs to be quickly absorbed.

Sweep waterproof membrane

Step 3: After the first layer is dry, we proceed to apply another layer. Depending on the requirements of the surface as well as the initial quality of the roof deck, we scan a reasonable number of layers.
Step 4: Pump water to soak test for 72 hours.
Step 5: Acceptance and handover of works.

Sweep the wall base waterproof membrane

If you have a need or contact them immediately to get a reasonable price, free consultation and moreover, we always offer the best and most effective waterproofing methods.

4. You can see the process of waterproofing the terrace in the video below:

🔔 Do not hesitate to contact us to use the "PROFESSIONAL" and "CLEAN" waterproofing services.

✨ Hung Thinh WaterProofing., Ltd
👉 Branch Office: 66 Vo Van Tan, 2nd floor, SAVICO Building, Thanh Khe District, Da Nang City
👉 Customer Care Office : 342 Hoang Van Thai, Lien Chieu District, Da Nang City
👉 Head Office : 2nd floor, SAVICO building, 66 Vo Van Tan, Thanh Khe, Da Nang

Hotline:

📲 Viettel : 098.777.4268

📲 Mobifone : 0769.18.6886

🌺 Website: https://chongthamhungthinhdanang.com/
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