Keeping your basement dry is vital for maintaining your home’s structural integrity and preventing mould, rot, or costly repairs. Water entering the basement can result from poor drainage, foundation cracks, or high groundwater. These practical solutions protect your home from water damage and ensure your basement stays dry.
Let’s get straight to the point.
To prevent water from entering your basement and causing damage, follow these eight effective strategies:
- Extend Gutters to direct rainwater at least 1.5 metres away from the foundation.
- Plug Gaps and Cracks using hydraulic cement or caulk to seal leaks around pipes and small cracks.
- Repair the Soil Crown by ensuring the ground slopes away from the home to improve drainage.
- Landscape Reshaping with berms or swales can help direct water away from the foundation.
- Fix Foundation Drains to remove water forced in by hydrostatic pressure.
- Install a Curtain Drain for additional drainage if no foundation drains are present.
- Waterproof basement walls protect against seepage using exterior waterproofing and French drains.
- Set Up a Sump Pump and interior drainage system to handle water that enters the basement.
Test for condensation or seepage, reduce humidity, insulate pipes, and seal foundation cracks for extra protection.
Effective Solutions In Preventing Water Entering The Basement
1. Extend Your Gutters
One common reason for basement water problems is gutters discharging water too close to the house. If your downspouts direct water less than 1.5 metres from your foundation, extending them using plastic or metal extensions is essential. This will carry rainwater farther from your home’s base.
While these gutter extensions are effective, they are sometimes a long-term solution. Frequent foot traffic or lawnmowers can damage them. Consider installing underground drain pipes to safely direct water away from the foundation for a more permanent option.
Key Considerations:
- Ensure downspouts extend at least 1.5 metres away.
- Install permanent underground drains for durability.
2. Plug Gaps And Cracks
Water can easily enter basements through cracks or gaps around plumbing pipes. Repairing these gaps using hydraulic cement or polyurethane caulk can help seal off potential entry points.
However, if water is entering through the floor or floor-wall connection, the problem may be groundwater seeping in. In such cases, plugging gaps alone won’t solve the issue, and additional measures may be required.
Key Considerations:
- Use hydraulic cement or polyurethane caulk to seal cracks.
- Groundwater may require more advanced solutions beyond sealing.
3. Repair The Soil Crown
If water is still entering the basement even after fixing your gutters and sealing cracks, the issue could be improper surface water drainage. Ideally, the ground around your home should slope away from the foundation at least 15 centimetres in the first 3 metres.
Over time, the soil settles, and the slope may flatten, allowing water to pool near your home. Rebuilding the slope using a shovel and dirt, particularly a water-repellent clay-soil mix, is affordable.
Key Considerations:
- Ensure a 15-centimetre slope in the first 3 metres from your home.
- Use water-repellent clay-soil mix for better drainage.
4. Landscape Reshaping
While raising the soil crown can solve water drainage problems, it’s essential to avoid bringing the soil too close to your home’s exterior, as this may attract termites or cause rotting. The minimum distance between the soil and your home’s exterior should be 15 centimetres.
Consider installing berms or swales to direct water away from your foundation for larger landscaping projects. A landscaper can build a small berm, while swales may be needed for larger areas.
Key Considerations:
- Maintain a 15-centimetre distance between the soil and the home.
- Use berms or swales for larger drainage issues.
5. Fix Foundation Drains
Due to hydrostatic pressure, water often seeps into basements where the floor meets the wall, which forces water through small cracks and gaps. The first step is to check for footing drains around your foundation.
Footing drains divert water from the base of the structure. If you find a capped maintenance hole or cleanout pipe above the basement floor, you can use a garden hose to flush out debris. Hiring a plumber to use a drill might be necessary if the drain is clogged.
Key Considerations:
- Ensure footing drains are clear of debris.
- Hire a plumber if needed to clear blocked drains.
6. Install A Curtain Drain
If your home lacks footing drains, installing a curtain drain can help manage water flow. A curtain drain consists of a shallow trench filled with gravel and perforated pipe, diverting water from the house.
Ensure that the curtain drain remains clear of roots and debris using solid pipes if it passes through bushes or trees. A 30-centimetre curtain drain typically varies in price per metre.
Key Considerations:
- Use solid pipes in areas with trees or bushes to prevent root blockage.
- Curtain drains are a cost-effective solution for diverting water.
7. Waterproof The Basement Walls
Waterproofing your basement walls is another effective way to stop water from seeping in. Interior drainage systems deal with removing water but don’t prevent it from entering the basement.Â
For better protection, exterior waterproofing combined with a French drain helps reduce hydrostatic pressure on your foundation.
While waterproofing requires excavation around your home, it’s one of the best solutions for preventing water damage, especially if there are cracks in the foundation. This solution also keeps water and dirt outside, avoiding interior messes.
Key Considerations:
- Exterior waterproofing is more effective than interior systems.
- Excavation may require the removal of decks or pathways.
8. Set Up A Sump Pump And Interior Drainage System
If water entering your basement is unavoidable, installing a sump pump and an interior drainage system will help manage it. You can chip away at the floor’s edge to create a groove for a perforated drain pipe. This pipe directs water to the sump pump, which pumps it away from the house.
This option is viable for unfinished basements if exterior solutions aren’t possible or landscaping makes digging impractical.
Key Considerations:
- Interior drainage systems are ideal for managing water already inside.
- Sump pumps are essential for removing excess water.
Evaluate The Water Conditions In Your Basement
Basement dampness usually stems from two primary sources: condensation and water seepage. Condensation happens when warm, humid air hits cool surfaces, while seepage occurs from rain, snowmelt, or groundwater. Testing for the source of moisture can help determine the right solution.
A simple test is placing aluminium foil on a basement wall for a few days. If condensation forms underneath the foil, water is seeping through the wall. If the foil is wet on the outside, it’s likely due to high indoor humidity.
Key Considerations:
- Test for condensation or seepage to identify the moisture source.
- Address seepage and humidity differently based on test results.
Additional Tips To Prevent Basement Moisture
1. Reduce Humidity
Reducing indoor humidity helps keep your basement dry. Sealing cracks in dryer vents and using exhaust fans when showering are simple steps that can help. For persistent moisture, use a dehumidifier to keep humidity levels in check.
2. Insulate Pipes
Cold pipes can cause condensation, leading to excess moisture in the basement. Installing foam insulation around pipes is an affordable, easy solution that prevents this.
3. Insulate Basement Walls
Adding insulation to basement walls helps avoid condensation and can reduce energy costs. However, ensure the walls are waterproofed first, as insulation can trap moisture and cause mould if water leaks are present.
4. Sealing Foundation Cracks
Water enters basements through cracks in the foundation, so sealing these is vital to preventing leaks. Hydraulic cement is ideal for this task, as it hardens and expands, even underwater. Use a cold chisel or angle grinder to widen cracks into a “V” shape before applying the cement for a secure seal.
Key Considerations:
- Hydraulic cement expands as it dries, making it perfect for waterproofing.
- Properly widen cracks for effective application.
5. Basement Waterproofing
Applying waterproofing materials to basement walls can prevent leaks and dry your basement. Clean the surface of the walls with a wire brush, removing any old paint and efflorescence (a white powder caused by moisture). Apply the waterproof coating directly to bare concrete, ensuring all cracks are filled for a seamless seal.
Key Considerations:
- Scrape walls clean before applying waterproofing materials.
- Apply at least two coats of the waterproof membrane.
Conclusion
Preventing water from entering your basement is essential to maintaining the longevity and safety of your home. By addressing potential entry points, improving drainage, and implementing interior and exterior waterproofing solutions, you can protect your basement from water damage, mould, and costly repairs.Â
Whether through simple fixes like extending gutters and sealing cracks or more comprehensive solutions like installing sump pumps and drainage systems, taking proactive steps now will help you keep your basement dry and your home in good condition for years.
FAQs About Basement Waterproofing
How Do They Waterproof A Basement From The Inside?
Seal/coat the interior of the walls with a suitable masonry waterproof product. When the paint dries, the sealant forms a watertight bond to prevent water from seeping. This is how you can waterproof your basement walls from the inside.
Should I Waterproof My Basement?
Ideally, the exterior walls of a basement should be waterproofed during construction. Newer construction mandates this procedure because of many state and local building code requirements, but many older homes may still need exterior waterproofing.
Is It Better To Waterproof The Basement From Inside Or Outside?
The exterior waterproofing process includes excavating soil surrounding your home and repairing the leaks using a powerful sealant. Interior basement waterproofing systems are considered better and more effective in preventing wet basements.
Can You Fix A Leaky Basement From The Inside?
Most basement leak repairs on brick, cement blocks, or concrete foundations can be performed inside or outside the home. If you have a poured concrete foundation, interior and exterior waterproofing repairs can effectively prevent a wet basement.
How Long Does It Take To Waterproof A Basement?
To sum up, Basement Waterproofing timelines can vary depending on what needs to be done. Generally, the projects should be encased within 3 days, often less than that. Most of our repairs are done within a day. When we have larger projects, the timeline can be extended by 2-3 days.
