APA System Report 103: Use of Wood Structural Panels for Energy-Heel Trusses
System Report
As demand grows for energy efficiency in new structures, ceiling insulation depth is often increased. As a result, roof trusses are increasingly being constructed as energy-heel or raised-heel trusses to accommodate changing designs and comply with requirements in the International Energy Conservation Code (IECC). This system report was developed for the designer to prescriptively meet the lateral load and wind uplift load requirements of the International Residential Code (IRC) with energy-heel trusses of 15 1/4 to 24 inches in depth using wood structural panel wall sheathing.
This publication is designed for: designers, architects, engineers
This APA system report describes the energy-heel truss system, the scope of structures that this system applies to, requirements outlined in the IRC, methodology, limitations and design examples.
Key sections include:
Methodology
Sheathing installations
Fastener attachments
Design properties
Engineering design
Use of design tables
Limitations
Design example
Published by APA — The Engineered Wood Association.
