6 Ways Water (Damp) Could Get Into Your Home

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Damp proofing is the process of making walls, ceilings and floors watertight. This is achieved by sealing the joints where moisture can penetrate into a building’s wall or roof space.

Damp proofing may be required when cracks appear in plasterwork or brickwork; when condensation appears on internal windows; when mold starts to grow inside walls and under carpets; when wallpaper hangs loose at window frames and doorways; and any time there is an increase in dampness over a period of time. It would also apply if there were evidence that rainwater has been entering through penetrations such as around doors, windows, electrical fittings etc., or if you notice damp patches on your ceiling with no apparent source for them (i.e., no leaking roofs or downpipes).

Damp proofing is a necessity for many buildings, particularly those located in areas with a high level of rainfall or humidity. A few building defects can result in an increase in dampness but most cases of rising damp involve cracks and penetrations between walls, floors and ceilings.

Let’s discuss the 6 Ways Water Could Get Into Your Home:

1. Penetrations in the walls and ceilings such as cracks around windows, door jambs and electrical fittings;

Penetrations in the walls and ceilings can cause water to get into your home. It’s important to remove any wood, insulation and other materials that could be blocking the water from getting through. You should also examine for penetrations anywhere in the building where moisture can penetrate, such as around windows or doorjambs. For house windows, use a rubber sealant such as an acrylic caulk to seal off the corners of the window frame to create a tight waterproof fit that will keep water outside. Next, apply a clear silicone sealant across the width of window frame at least 1 inch down from top edge of window, then place a rubber bead (about 1 inch long) of sealant over the caulking or silicone. If you have a door or some other opening that leads to the outside, inspect it closely for cracks and holes that might let water inside. Pay particular attention to seams around doors and windows as well as small gaps where pipes enter from underground, such as along concrete slabs and basement walls.

2. Design and construction defects

Particularly at transitions between different ceiling types (such as suspended ceilings to masonry) or roofs with insufficient fall (slopes);

Design and construction defects are one of the main causes of water getting into the home. These defects can include problems with transitions between different ceiling types, roofs with insufficient slope (slopes), or inadequate finishes for flat roofs, balconies and canopies. It’s important to identify these issues and to fix them immediately in order to avoid moisture seeping into your walls.

3. Inadequate finishes for flat roofs, balconies and canopies, metal decks etc.;

If your flat roof has no slope (slope) then it will be at risk of leaking due to water pooling on the surface of the roof. Your roof should be designed to allow water to run over the surface, not collect on it. This can be achieved by installing a gutter or setting up downpipes next to your walls, which act as drains for excess rainwater. It is also important (for roofs with no slope) that you fix leaks immediately because water will travel through the flat roof membrane to the edge of the roof and make its way inside your home if it is not dealt with quickly.

If you notice any damp spots (i.e., on walls, ceilings or floors) that are located in areas where there are no penetrations, then the most likely cause will be an inadequate finish for flat roofs, balconies and canopies.

4. Site drainage problems where the water table is at the surface of the ground;

This can lead to severe damage to property, which you should take steps to address as soon as possible.

5. Poor internal finishes particularly in laundries, bathrooms or kitchens;

To avoid water getting into your house, it is important to make sure that the walls and floors are sealed from moisture. If there is any opening around pipes or cracks in the walls, the moisture will eventually get inside. This will probably occur through your basement or floors if they are not sealed properly. In order for this to stop happening, you should seal off any openings with rubber seals, caulk or silicone sealant.

6. Accidental damage to external surfaces such as by cars crashing into walls close to openings or during building works.

Evidence of accidental damage can come in many forms, such as:

– A new crack (or any crack) appearing in the wall and it’s not caused by settlement or damp proofing;

– An increase in wet rot due to increasing dampness near an external surface – Possibly a blocked or broken drain pipe;

– The water table rising to the surface of the ground.

– The installation of a gutter will help prevent water from pooling (and subsequently dripping) on the flat roof surface, which would allow the corrosion process to begin under the building. This will be done by directing excess rainwater away from your walls so that it doesn’t leak through and cause more damage.


While water can enter your home in many ways, it’s important to identify the source of the moisture and take steps to fix it. Damp proofing is a crucial step that should be taken when building or renovating any structure. To learn more about how you can prevent water from entering your walls, ceilings, floors or basement contact us for an expert consultation on damp proofing and leak detection services today!