Building Science Resource Library
The Building Science Resource Library contains all of FEMA’s hazard-specific guidance that focuses on creating hazard-resistant communities.
You can search for a document by its title, or filter the collection to browse by:
- Topic: High winds, flood, earthquake, etc.
- Document Type: Brochure, report, fact sheet, infographic, etc.
- Audience: Building professionals & engineers, individuals & homeowners, teachers & kids, etc.
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FEMA Roof Snowdrift Design Guide
This design guide provides guidance on three-dimensional (3-D) roof snowdrifts, which were introduced in ASCE 7-16. The guide includes procedures for designing 3-D drifts at parapet wall corners and reentrant corners.