How to do waterproofing of terrace?

How to do waterproofing of terrace?

Waterproofing is a procedure to make a structure unaffected by the presence of water. Regardless of what kind of structure you are talking about – take a special account of waterproofing in each case. A layer of protective compound is constructed between the surface and the exterior atmosphere to make it water bearable.

A flat base surface or roof is known as a terrace. Structural designs that are flat and have no curves require a secure membrane to make a shield from water more than any other kind of surface.

Today we will understand why a terrace need waterproofing does and how can you do it simply within few hours!

Why does a terrace need waterproofing?

Flat surfaces such as terrace and rooftops need extra attention and urgency for making them waterproof. When water runs on these types of plain constructed areas it goes rapidly within the material because of the absence of any curve and bumps. The water from the terrace can travel frequently even if the drainage system is fitted.

To protect the incoming possible damage from water – a protective layer of liquid or solid material is coated over the top of the terrace. The whole procedure is done by experts but can be performed voluntary if you understand the concept completely. Read the below guide to know how the terrace waterproofing is done within few hours.


Choosing the right method for applying a waterproof surface is an important part of construction because the rooftop protects the whole base and rooms that guards the whole building against exterior environmental conditions.

1. Clean the roof area properly

First thing first, if a building is already built and needs modification then cleaning and washing off the dirt is a must. Now go and clean the unwanted mess spread over the surface. You can make utilization of cleaning tools such as a shovel, trowel, scrappers and anything else you wish to make the process easier as per your need.

Properly clean the old settled particles so that they do not interrupt coating later.

2. Wash the terrace with water

In the Next step, clean the rest of the dust and dirt particles with a fine pressure of water. You can use a water pipe for making the procedure handy and quick. Remove old and damaged surface or paint present on the roof. At the end of cleansing, you may see various cracks and breaks on the upper portion of a surface.

3. Repair the cracked areas

Examine the rooftop carefully and look for the crack areas and points on the top. Quality sealant and crack filler fix the broken gap between the cemented materials. Moreover, the invisible gaps and cracks can be filled by evenly applying a layer of silicon liquid and grout on the required spot.

4. Re-plaster and Break the required cracks

After filling the minor cracks – move forward to the major gaps that can be either filled or make even with the help of a grinder. Using polymer and fibreglass materials, the re-plastering can be done easily.

5. Use damp proof liquid on the surface

Let the cracked area dry for 2-3 hours and also remove the extra coating. Now, take a damp proof liquid to make a base for the application of waterproofing layers. This element will ensure the safety of basic damp and humidity caused by atmospheric changes.

6. Apply the protective film or layers of coating

Decide what kind of method you prefer for making protective layers. An adhesive sheet, as well as liquid membrane, works best for huge and open terrace areas. They can be attached within a limited timing in simple ways. Moreover, your mason will suggest what suits the best for an entire terrace.


Among the numerous kind of structures, designs, architectures and buildings – flat surfaces such as terrace and rooftops demands much more focused waterproofing. Try to proceed with the same while construction works rather than following the waterproof plan after construction. It will save a lot of money, damage and will give you a peace of mind.