This authoritative manual takes you through the forces of rain, snow, ice, and vapor ... explains variations in macro and micro climate ... analyzes weather exposure and risk ... discusses the durability of various building materials ... and applies theory to practice with hundreds of detail drawings. Whether you're an architect, engineer, contractor, or building owner, this manual is now your best tool for achieving optimal thermal and moisture control in a wide range of building types - and for mastering the why's and how's of good practice.