Air leaks in attic spaces spray foam insulation are a major source of energy loss in residential buildings. Attic insulation air sealing addresses gaps, cracks, and penetrations that allow conditioned air to escape. Proper air sealing improves temperature control and reduces unnecessary strain on heating and cooling systems.
Common air leakage points include recessed lighting, attic hatches, duct chases, and wiring penetrations. Without sealing these areas, insulation alone cannot perform effectively. Air movement bypasses insulation layers, reducing their thermal resistance and increasing energy consumption.
Air sealing performance is supported by principles of convection. Preventing air movement limits heat transfer, helping homes retain indoor temperatures more efficiently throughout the year.
Why Air Sealing Enhances Insulation Performance
Combining air sealing with insulation creates a continuous thermal and air barrier. This reduces drafts, improves indoor comfort, and enhances HVAC efficiency.
Effective attic air sealing lowers utility bills, improves indoor air quality, and extends insulation lifespan, making it a foundational step in energy-efficient home improvement.
Foam Expert Group
130 Industry St #39 North York ON M6M 5G3
647-671-3950
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