March 25, 2024 4 min

How Attic Insulation Lowers Energy Bills

The attic is where most homes lose the most energy. Here's exactly how upgrading it changes your monthly bill.

Heat Rises

In winter, your heated air rises into a cold attic. In summer, a 140°F attic radiates heat down through the ceiling all afternoon. Insulation slows both.

Air Leakage

Most attics leak conditioned air through top plates, recessed lights, and chases. Air sealing first, then insulating, captures the full savings.

HVAC Runtime

A properly insulated attic cuts HVAC runtime by 20-40% in most Chattanooga homes — directly reflected on your power bill.

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