Foundation drainage can be done many different ways and is important to keep your home and landscape damage free long term. Standing water in the basement not only causes a musty smell while damaging furniture, belongings, floors and walls but can also cause mold. The type of foundation drainage can depend on cost, location of home, and with how much water runoff a home or business will typically get.
The French drain is named after its inventor Henry French and is also commonly known as a perimeter drain. A French drain is a perforated sloped drain pipe placed about 8 inches to 2 feet under the foundation covered with gravel or sand to divert water from pooling.
A perforated plastic drainage pipe is installed on interior or exterior of the basement / crawlspace walls at floor level. The drainage pipe must have a slope to drain collected water away from structure wrapped with landscape fabric, at least 6 inches of 1/2 inch to 3/4 inch washed gravel covering it and landscape fabric above.
Grading Drainage is the easiest system of drainage where gradient is added around the foundation changing the slope around the structure so water will run away from the structure and towards the storm drain. With grading drainage you want 8 inches of minimum clearance for siding and stucco and 6 inches of minimum clearance for masonry.
A sump pit is a hole in the basement or crawlspace of a house that collects water that drains in the house or building. The sump pump is electric or battery powered and is triggered when water reaches a certain level moving the water through a perforated pipe near the foundation wall out and away from the house.
Storm water can cause water seepage into crawlspaces and basements if downspout drain lines are not properly installed where necessary. Downspout drain lines are under ground and keep water from pooling on the homes foundation.
Improve outside drainage:
Install or replace sump pump:
Add interior drainage:
Protect against plumbing leaks:
Install new windows and window well covers:
Repair foundation cracks:
Horizontal, vertical, and stair-step cracks in the foundation walls
Check roof for damage: