1.1 This guide gives examples of performance statements for durable in-place materials, products, components, subsystems, and systems for single family attached and detached dwellings, considering the effects of normal degradation factors to which they are anticipated to be subjected over their service lives. provides a listing of the sections of this Guide that address durability including the performance statements.

1.2 Damage from extreme acts of nature, vandalism, or intentional destructive acts by dwelling inhabitants are not considered as normal degradation factors affecting durability in this guide.

Performance statements regarding the performance of single family attached and detached dwellings under extreme acts of nature are addressed in the Guide on Structural Safety and Serviceability.

1.3 This document also addresses site planning in so far as it affects the durability of single family attached and detached dwellings.

1.4 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information.

1.5 This guide is not intended to be used as a prescriptive regulatory document.