9.27.2.2.(3)

Objective

OS2 Structural Safety

Attribution

Intent

Intent 1:

To limit the probability that moisture will transfer from drained and vented air space or drainage material in the wall into assemblies above the wall, which could lead to the accumulation of moisture.

This is to limit the probability of deterioration, which could lead to compromised structural integrity of attic or roof assemblies or of elements protected by attic or roof assemblies, which could lead to harm to persons.

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