Foundation Drainage Systems
How perimeter drains, weeping tile, gravel beds, and grading move groundwater away from foundation walls and footings.
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Canadian Homes Reference
Keeping foundations dry from the ground up
Plain-language reference on how water moves around a foundation, why basements get damp in the Canadian climate, and which drainage and moisture-control methods address it.
Core Topics
Three areas that decide whether a basement stays dry
Moisture problems usually trace back to one of these systems. Each topic below links to a detailed reference article.
Sump Pump Systems
How sump pits and pumps collect and discharge water, the difference between pedestal and submersible units, and backup options.
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Basement Moisture Control
Interior approaches including vapour management, dehumidification, condensation, and reading the signs of a moisture problem.
Read articleHow Water Reaches A Basement
The path from rainfall to a damp wall
Surface
Grading and runoff
Soil that slopes toward the house and downspouts that empty next to the wall send water straight to the foundation instead of away from it.
Subsurface
Hydrostatic pressure
Saturated soil presses water against walls and footings, forcing it through cracks, cold joints, and porous concrete.
Interior
Vapour and condensation
Even without a leak, humid air meeting cool concrete can leave walls and floors damp, especially in summer.
Canadian Context
Why the freeze-thaw climate matters
In much of Canada, soil freezes in winter and thaws in spring. Frost can shift soil against foundation walls, and meltwater arrives quickly when the ground is still partly frozen and cannot absorb it. Drainage that copes with a steady rain may be overwhelmed during a rapid spring thaw.
Clay-heavy soils common in parts of the Prairies and central Canada hold water and swell, while sandy soils drain faster. Local conditions shape which methods are appropriate, which is why no single setup fits every property.
Contact
Questions or corrections
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Email: info@oliveporchco.org
Region: Canada