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SWS Details: 4.1001.6 Unvented Roof Deck—Preparation for Spray Polyurethane Foam, 4.1001.7 Vented Roof Deck—Preparation for SPF |
Insulation reduces heat transmission by resisting the conduction, convection, and radiation of heat through the building shell. Insulation combined with an air barrier creates the thermal envelope between the conditioned indoors and outdoors.
Installing insulation is one of the most effective energy-saving measures. You can ensure insulation’s safety and effectiveness by following these guidelines.
ü Install insulation in a way that enhances fire safety and doesn’t degrade it. See "Safety Preparations for Attic Insulation" on page 126.
ü Comply with lead-safe practices when disturbing paint in pre-1978 homes. See "Lead-Safe Work Practices" on page 43.
ü Prevent air movement through and around the insulation with an effective air barrier. Make sure that the air barrier and insulation are aligned (next to one another) using procedures outlined starting on page 111.
ü Protect insulation from moisture by repairing roof and siding leaks, providing site drainage, and by controlling vapor sources within the home. See "Solutions for Moisture Problems" on page 33.
ü Install insulation to meet or exceed the guidelines of the International Energy Conservation Code (IECC) 2012 and the DOE’s Standardized Work Specifications.
Provide each client, receiving insulation products and services, a printed and signed receipt or certificate that includes the following information.
• Insulation type
• Coverage area
• Number of bags installed
• R-value
• Installed thickness and settled thickness
• Amount of insulation installed according to manufacturer’s specifications