Sentence 9.14.3.3.(1)

Intent 1:

To limit the probability of:

• a loss of continuity between drain tiles, or
• the inappropriate placement of drain tiles or pipes.

This is to limit the probability of:

• the excessive settlement of drain pipes, or
• the differential movement of drain tiles.

This is to limit the probability of excessive moisture loading on foundation walls and basement floors, which could lead to the accumulation of water under hydrostatic pressure, which could lead to:

• the saturation of floor slabs, or
• the flooding of basements or crawl spaces.

This is to limit the probability of:

• compromised structural integrity of foundation walls and basement floors, or of elements supported by the walls or floors, or
• deterioration, which could lead to compromised integrity of elements supported or protected by exterior foundation walls.

This is to limit the probability of:

• the space being unsuitable for its intended use, or
• damage to the building.

Intent 2:

To limit the probability of the accumulation of water under hydrostatic pressure on the soil immediately beneath the footings, which could lead to saturation and a reduction in the soil's bearing capacity, which could lead to the failure of foundation walls and basement floors, which could lead to damage to the building.