Energy-Conserving Wall Assemblies
Typical Detail
This detail shows two energy-conserving exterior wall assemblies — APA Rated lap siding over WSP sheathing with advanced framing, and APA Rated siding over rigid foam insulation with conventional framing — with R-value and U-value data in 2D CAD format. Developed by APA – The Engineered Wood Association, this detail is drawn from APA publication APA Engineered Wood Construction Guide, Form E30 and reflects decades of engineered wood research, testing and field-proven best practices.
This 2D detail is designed for architects, engineers, contractors and building professionals and provides clear, code-compliant guidance.
Available in multiple formats including DWG (AutoCAD), RVT (Revit), and PDF, this detail helps building professionals streamline the design and construction process while ensuring structural integrity and proper installation of engineered wood products.
Published by APA — The Engineered Wood Association.
