Oct 12, 2025
Attic Insulation for Summer
When summer arrives, your home will need all the help it can get to stay cool. Getting your attic insulated before the heat starts will save you money on energy bills and make it easier for your air conditioner to do its job.
How Insulation Keeps Your House Cool
Proper insulation in the Wilmington Metropolitan Area keeps your home cool in three ways: by blocking conduction, reducing convection, and stopping radiant transfer. The R-value (a measure of insulation’s ability to resist heat flow) of your insulation determines its performance, with spray foam and foam board offering the highest performance.
Heat from the sun naturally warms your roof, but insulation slows this process down, preventing it from creeping into your living spaces. Insulation also blocks air leaks, ensuring the heat and humidity trapped in your attic stays there, not in your living spaces.
You might notice that upstairs rooms feel warmer than downstairs, especially if you have a two-story house. This is caused by thermal bridges, which are the areas where your ceiling connects to your attic and walls. Poor attic insulation and air sealing allows heated air to rise and seep through the gaps. Insulation and air sealing plug these gaps, allowing your cooling system to do its job.
A well-insulated attic also increases your resale value and reduces your energy bills, making it a smart investment for any homeowner. And a properly insulated attic can also help keep rodents out of your home, as they seek a cool dark place to escape the summer heat.
CEC Spray Foam
203 Cole Dr, Hampstead, NC 28443
(910) 833-4521