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The monsoon provides a welcome break from the heat. However, it also brings a familiar concern for many home owners. Water begins to seep through the terrace, damp patches develop on walls, and ceiling stains begin to grow.
Many of these issues do not develop overnight. They develop months prior as a thin crack, a clogged drain, or a joint that has dried out. By the time you notice them, the damage has already occurred inside your home.
This is why waterproofing should be checked before the rains, not after the first leak. A little inspection and timely repair can save you from significant damage to your property.
So, how do you prepare your home?
In this guide, we will walk you through five simple steps: check the terrace, clear the drains, look for early damp, seal the joints, and select the correct product for each surface.
Waterproofing is simply preventing water from entering a surface. In a home, this is accomplished through the use of coatings, sealants, and repairs that protect roofs, walls, bathrooms, and other concrete areas.
Water rarely remains where it enters. A small crack on the terrace can allow water to seep into the slab and travel along it. Weeks later, it appears as a stain on the ceiling below.
Indian homes have an additional challenge. Concrete expands and contracts as it heats up during the day and cools down at night. This expansion and contraction can cause even small cracks to expand over time. Therefore, the best time to waterproof is prior to the monsoon.
The terrace receives the most sun and the most rain. Therefore, of all the home waterproofing tips, this one requires the most time.
During dry weather, walk around the terrace and look for hairline cracks, flaking or chalky coating, and loose plaster along the parapet.
Also, look for low spots. If water remains in one corner for hours after a rain shower, the surface has a dip and that needs to be addressed first. It is also helpful to note how old the current coating is.
For an older terrace with cracks, Astral Trubuild Rooftect Advanced is one option. It is a single-component PU acrylate coating that creates a seamless membrane and bridges cracks up to 2 mm. Any wider cracks should be repaired before applying the coating.
Rainwater requires a clear path off the roof. Sometimes the outlets become clogged with leaves, dust, and plastic. As a result, rain accumulates on the terrace and puts pressure on the surface for days.
Trubuild lists poor drainage as one of the most common reasons for roof leakage for this very reason.
Clearing outlets is one of the easiest home waterproofing tips on this list. Do so by hand and remove all debris completely. Then pour a bucket of water near each outlet and observe how quickly it drains. A slow trickle typically indicates a partial blockage deeper in the pipe.
The good news is that this is also one of the easiest tasks on the list. Remove debris by hand, then pour a bucket of water near each outlet. If it drains quickly, you are good. If it trickles out slowly, there is likely a blockage further down the pipe.
Also check the slope. The surface should gently slope towards the outlets so that water drains completely. And before the rains begin, remove heavy items and pots from the terrace.
Signs inside the house often appear before the terrace reveals anything. Learning to recognize these signs is one of the most valuable skills any owner can possess.
Trubuild’s guidance lists these as the common warnings:
If two or more of these appear together, consider it a cue to take action before the rains begin.
The stain is not always located directly beneath the leak. Water can travel along a slab or a wall before it appears. Therefore, trace the patch back to its source before you repaint. A fresh coat of paint over damp only conceals the problem for a few weeks.
Water typically enters where two surfaces meet. Examine closely at pipe openings, parapet joints, roof-to-wall connections, expansion joints, and drain edges.
These areas move more than the rest of the building. Rigid cement alone may crack again as the building expands and contracts.
First clean out dust, loose material, and old sealant. Then use a flexible sealant for moving joints. Trubuild Sealmaster Flexi is a single-component MS-polymer sealant designed for joints exposed to weather.
For cracks on the terrace, the repair method depends on their size. Small cracks can be opened and filled. Larger cracks may require a polymer-modified mortar.
Trubuild SBR-333 is a ready-to-use styrene-butadiene latex used for repairing old floors, slabs, and other concrete surfaces.
Sealing these areas before the monsoon is one of the easiest ways to prevent water from entering.
The final home waterproofing tip is about matching the product to the surface. No single product is suitable for every area, so the choice depends on what the surface is like and how much weather it will be exposed to.
First identify the area you wish to treat. Then check for cracks, damp patches, or damaged plaster. This will assist you in determining whether you need a flexible coating, a cementitious membrane, or a repair mortar.
Once you select a product, follow its application steps exactly. Skipping even one step can decrease performance or cause the entire system to fail according to Trubuild's instructions.
If the damage is extensive or continually occurs, get a professional assessment first.
Even good advice can fail if you make mistakes with regard to the basics. Here are some mistakes to avoid:
A dry and clean home begins with a few simple habits. Check the terrace and clear the outlets. Look for early dampness, then seal every joint that moves or leaks, match the product to the surface, and follow its steps without shortcuts.
These home waterproofing tips work best when you complete them prior to the arrival of rain. Keep the five checks handy and cross them off one by one. A little effort now prevents you from having to repaint and repair later.
