Air sealing is a critical component of effective attic insulation. While insulation slows heat transfer, air sealing prevents conditioned air from escaping through cracks, gaps, and penetrations. Without proper sealing, even high R-value insulation may fail to deliver optimal performance. Combining insulation with comprehensive air sealing significantly enhances energy efficiency and indoor comfort.

Palomo Insulation air leakage points in attics include recessed lighting, ductwork, plumbing vents, and attic access hatches. Sealing these areas with caulk, foam, or weatherstripping reduces drafts and prevents energy loss. Addressing air leakage before installing or upgrading insulation ensures that conditioned air remains inside the home, reducing strain on heating and cooling systems.

The importance of air sealing aligns with guidelines outlined by Environmental Protection Agency energy efficiency programs. Proper sealing improves insulation effectiveness and reduces moisture infiltration, which can otherwise lead to mold growth and structural damage. Air sealing and insulation work together to create a continuous thermal barrier.

Best Practices for Effective Air Sealing

A thorough inspection is the first step in identifying leakage points. Homeowners may use blower door tests or professional energy audits to pinpoint problem areas. Sealing materials should be selected based on gap size and location, ensuring durable and long-lasting results.

After sealing, insulation should be installed evenly to maintain consistent coverage. Care must be taken to avoid compressing materials, as this reduces R-value. Proper ventilation must also be maintained to prevent moisture buildup and maintain roof integrity.

When executed correctly, attic insulation air sealing enhances comfort, lowers utility costs, and improves overall building performance. Investing in both components ensures long-term energy efficiency and a healthier indoor environment.

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Palomo Insulation
“Wendell Rd, Wendell NC 27591
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‭(919) 901-3072‬