2. FIELD-VERIFY QUALITY
Conduct a pre-drywall verification of insulation and air barrier details on the interior of every project. In the same way that critical weather-barrier details become hidden upon finishing, improperly installed insulation will be covered up for most of the building’s life and will compromise energy performance and comfort year after year. Energy raters such as RESNET-trained contractors use a thermal bypass checklist and an insulation grading system that focus on draft-proofing behind critical areas such as bathtubs, fireplaces, and stairways on exterior walls and gaps, voids, and compressions of insulation.