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Whole-Building Design Strategies - Building Science Principles


Solution Center Guides


Vapor retarders can be a crucial part of the building envelope and can help manage moisture issues to keep the home dry. However, before installing a vapor retarder, installers must be aware that in some instances vapor retarders can increase the likelihood of condensation issues.

Guide describing how to conduct a home performance assessment before beginning retrofit projects in existing homes.

Information guide describing how to assess attics, ceilings and roofs before proceeding with upgrades in existing homes.


Information guide describing pre-retrofit actions to take to assess for asbestos, volatile organic comounds (VOCs) soil gasses including radon and lead.