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Foundation Facts
A basement wall is not a retaining wall. A basement wall must be fastened to the
floor joist at the top and held in place at the bottom by the basement floor.
We recommend that you either brace the walls before backfilling or have the house
and slab in place before backfilling.
Improper drainage can cause up to 300% more pressure on a poured wall. Areas around
the foundation must slope away from the house at least 5% (about 6 inches) over
the first 10 feet. A lot of foundation wall failures happen during construction
when grades around the foundation allow water to hold against the foundation walls.
A humid basement is normal. During placement of the wall and floor slab, an average
of 400 gallons of water is present in the concrete. The water must escape in your
basement in the form of humidity. An easy remedy is to circulate air into and
around the basement.
Daylight drain tile must be seen to be functional. Exterior drain tile must be
clear of debris and not buried. Many times during final grade and sod placement
the exterior drain tile is buried. This is one of the most common causes of a
wet basement.
Information Main Page
Tips on Building Basements
Foundation Facts
How About That Foundation?
CertainTeed Foundation Products
Gary Bromley Earns CFA Service Award
ABI wins CFA 2003 "Basement of the Year"
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