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Retrofitting Vented Attics
Overview
This guide explains the critical steps to upgrade existing attics to improve comfort and energy efficiency, prevent moisture issues, and keep roofing materials durable.
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Properly retrofitting a vented attic is essential for improving comfort, energy efficiency, preventing moisture issues, and ensuring roofing materials remain durable to expected life use.
Properly insulated vented attics provide:
- Improved comfort
- Increased energy efficiency
- Reduced risk of health, safety, and durability issues
- Improved longevity for shingles and roof materials
Vented attics allow air to flow through:
- Soffit vents
- Ridge vents
- Box/Slant-back vents
- Gable vents
- Turbine vents
- Power vents
Related Resources
CalcShed Insulation Calculator
Estimate batt or roll packages, blown-in bags, and spray foam kits from measured area and the coverage or yield for the product you plan to use.
Unvented Roofs for Conditioned Attics
This guide provides information and details on designing and installing an unvented conditioned attic.
Vented Roofs for Cathedralized Attics
This handbook provides an overview of the climate-zone-specific best practices for designing and installing compact vented roof assemblies for conditioned attics.