Concrete and masonry foundation walls shall be waterproofed _______.

Concrete and masonry foundation walls shall be waterproofed _______.

• A. in areas where a high water table exists
• B. where severe soil conditions exist
• C. from the top of the footing to the finished grade
• D. all of the above

Answer: (D)

Waterproofing foundation walls protects the interior from moisture where soil conditions can push water against the wall. In areas with a high water table, hydrostatic pressure raises the risk of water infiltration, and in areas with severe soil conditions, poor drainage or expansive soils can increase moisture problems. The membrane should extend from the top of the footing down to the finished grade, covering all portions of the wall below ground. Because these conditions all justify protection, waterproofing is required in all of the listed scenarios.

Waterproofing foundation walls protects the interior from moisture where soil conditions can push water against the wall. In areas with a high water table, hydrostatic pressure raises the risk of water infiltration, and in areas with severe soil conditions, poor drainage or expansive soils can increase moisture problems. The membrane should extend from the top of the footing down to the finished grade, covering all portions of the wall below ground. Because these conditions all justify protection, waterproofing is required in all of the listed scenarios.