Installation of Common Insulation Types: Wood-Frame Walls and Attics (TechNote)

May 31, 2017

This TechNote provides practical information for the installation of three types of insulation in various applications: fiberglass, cellulose, and spray polyurethane foam. It is intended to help builders and designers meet the requirements of the energy code and maximize the value of each insulation type. It includes the “Decision Matrix—What is Best Insulation for Me?”

TechNotes: Best Practices for Home Builders
In recent years, building codes for energy efficiency and related standards have been amended to require greater amounts of insulation in exterior wall and roof assemblies, including continuous insulation on exterior walls, higher levels of building air tightness, and mechanical ventilation.
NAHB’s Construction Technology Research Subcommittee worked with Home Innovation Research Lab to develop these TechNotes to help builders navigate these new code requirements and implement best practices to avoid building performance issues related to interior humidity levels, condensation in wall and roof assemblies, and interior air quality.

Author: 
Home Innovation Research Labs
Published & professionally reviewed by: 
National Association of Home Builders (NAHB)
File: 

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