RESIDENTIAL BUILDING - DRAINTILE

• Determine if drain tiles or pipes are installed at or below the area to be protected.
• Determine if drain tiles or pipes discharge into an approved drainage system (sump pit or daylight).
• Determine if drain tiles or pipes are covered by at least six inches of gravel.
• If interior drain tile is used in lieu of exterior, ensure that 2" diameter pipes 4' on center are extended through foundation into a filter material covered stone filter on the exterior side.
• Determine that all exterior drain tile and gravel is protected with filter material prior to backfill.
• Determine that adequate crawl space ventilation is provided.
• Verify that required and approved emergency escape and rescue window(s) or exterior door(s) are provided in all new basements.

<< BACK