4.1088.7 Insulating Inaccessible Attics

Topic: 
Attics
Subtopic: 
Special Considerations
Desired Outcome: 
Insulation installation does not compromise building durability
TitleSpecification(s)Objective(s)
4.1088.7a
Worker safety

All worker safety specifications will be in accordance with SWS 2.0100.3 Worker Safety

Ensure worker safety, especially in regard to fall protection considerations and contaminants found in demolition, such as asbestos, lead, polychlorinated biphenyls, etc.

4.1088.7b
Pre-inspection

Attics that cannot be air sealed will not be filled with blown insulation

At no time will dense pack Dense pack The process of installing loose-fill insulation to reduce air flow and perform to a stated R-value insulation products be considered an appropriate air barrier Air barrier The separation between the interior and exterior environments of a building that slows air flow to the point that no smoke movement is visible at 50 pascals of pressure difference across the boundary material for an inaccessible attic

Where attic spaces are inaccessible for air sealing, top of building thermal boundary Thermal boundary The separation between the interior and exterior environments of a building that slows heat flow may be insulated using methods and techniques outlined in SWS 3.1801.1 Above Roof Deck Air Sealing

Avoid catastrophic moisture issues in the attic cavity