Originally Posted By: gbell
This post was automatically imported from our archived forum.
Good Morning,
Next week we will get back to questions that are more inspector related.
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Greg Bell
Bell Inspection Service
Good Morning,
Next week we will get back to questions that are more inspector related.
Originally Posted By: gbell
This post was automatically imported from our archived forum.
Drains shall be provided around all concrete or masonry foundations that retain earth and enclose habitable or usable spaces located below grade. Drainage tiles, gravel or crushed stone drains, perforated pipe or other approved systems or materials shall be installed at or below the area to be protected and shall discharge by gravity or mechanical means into an approved drainage system. Gravel or crushed stone drains shall extend at least 1 foot (305 mm) beyond the outside edge of the footing and 6 inches (153 mm) above the top of the footing and be covered with an approved filter membrane material. The top of open joints of drain tiles shall be protected with strips of building paper, and the drainage tiles or perforated pipe shall be placed on a minimum of 2 inches (51 mm) of washed gravel or crushed rock at least one sieve size larger than the tile joint opening or perforation and covered with not less than 6 inches (153 mm) of the same material.
Exception: A drainage system is not required when the foundation is installed on well-drained ground or sand-gravel mixture soils according to the United Soil Classification System. Group 1 Soils, as detailed in Table R405.1.
The correct answer is D
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Greg Bell
Bell Inspection Service