Roof waterproofing

Waterproofing solutions

How To Waterproof A Flat Terrace


We have been taught to count our blessings every day for having a ‘roof over our heads’. But those blessings can just as easily be washed away by a leaky roof. Improper roof waterproofing can lead to large scale water seepage across the home system, decreasing its lifespan and causing your home to develop leaks in all walls, mould, mildew and weakening its overall structure. A roof becomes a terrace when it is flat and there is an entry built for access to it. With endless architectural designs possible today, a flat terrace is still the most popular amongst homeowners. A flat terrace is practically level as compared to a sloped one, with a slope of only about 10 degrees. 

How to Waterproof a Flat Terrace - Asian Paints


Though flat roofs were traditionally more prevalent in low rainfall areas with hot dry climate, with the advent of reliable waterproofing techniques such flat roofs are constructed even in areas with heavy rainfall.

Advantages of Waterproofing Flat Terrace - Asian Paints
Benefits of Choosing a Flat Terrace - Asian Paints

Here are several benefits of choosing a flat terrace:

More floors and rooms can be added at later stages.

A flat terrace acts as an open area for people to come together for rest, relaxation and recreation.

It provides more square footage for accommodating equipment, such as exhausts and air conditioning vents.  

Even though it is a preferred choice amongst homeowners, there are several problems related to having a flat terrace. Here are a few most common ones which make roof waterproofing imperative:

Flat roofs do not drain as effectively as a sloped roof, causing water to puddle and accumulate on rooftops.

Debris and dirt tend to collect on flat terraces which may cause water to gather and clog the drainage.


The roof or your terrace is undeniably the most fundamental and the most exposed part of your home. It acts as a sheath protecting you from harsh exterior conditions keeping you safe and dry inside your home. With that in mind, it is important to understand and choose the right method for roof waterproofing a flat terrace. 

Traditional Methods

In the brick bat coba method, brick and mortar are used to create a slope for the water to drain away from the terrace. Another traditional method of bituminous treatment uses bitumen (asphalt) as a thin layer on top of the roof surface. Both solutions also include adding a generic waterproofing chemical to the mixtures to further help the process. In a variation of brick bat coba, China Mosaic tiles are also used for waterproofing of flat terraces..Though all these methods of waterproofing a terrace are widely used, they have proven to be unstable and non-durable in the long run, requiring frequent repair and even replacement.

Modern Methods of Waterproofing a Flat Terrace - Asian Paints
It is important to select a waterproofing technique that will be effective in the longer run.

Modern Methods

The modern methods of waterproofing terraces use chemicals mixed with cement to form a waterproofing layer. However, poor quality of chemicals, limited shelf life, and inability to withstand extreme temperatures make them a poor choice for waterproofing of terraces.

Asian Paints Method

Asian Paints Damp Proof & Damp Proof Ultra, are Acrylic Chemistry-based solutions especially designed to meet the waterproofing needs of Indian roofs and terraces. These products have a proven track record of providing roofs with the most advanced waterproofing cover against all kinds of water damages. 

Asian Paints waterproofing solutions come packed with novel “fiber” content (special blue granules) that makes the surfaces flexible as well as robust to tackle nature's impacts head-on. Available with up to 10* years’ warranty, you can rest assured your building is in safer hands. 

What’s more, unlike other waterproofing products in the market, Asian Paints solutions are much easier to use, thus saving your time and labor costs significantly.


Clean the roof surface

Fill in all cracks and gaps with Crack seal and Akrylmax

Additional Step – remove existing putty and paint on the roof

Repair damaged spots or hollow areas of the roof, if any.

Apply 1st coat of Damp Proof/Damp Proof Ultra

Let it dry for 4 to 6 hours

Apply Roof Tape on all edges and corners to ensure full coverage against leakage

Apply 2nd coat of Damp Proof/Damp Proof Ultra

Let it dry for 4 to 6 hours


This cycle of apply, dry and repeat results in a durable sheath with unmatched water resistance and unparalleled heat reflecting properties, making the Asian Paints method of roof waterproofing far superior to any other technique. 

The two-coat application creates a flexible membrane with a mechanical strength to withstand hydrostatic pressure of up to 7 bars and protection from water damage of up to 10 years! 

All you need to do is give us a call or click the button below and our experts will provide you with a full quotation for all your waterproofing needs.


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