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Insulating Your Attic to Stay Cooler at Home

“Will insulating my attic make my house cooler?” It’s a common question with a simple answer: yes.

Why is this? After all, when you think about insulation, you probably picture a heavy winter coat insulating you against the cold or a thermos keeping your soup warm. For this reason, residents of Sacramento may assume attic insulation isn’t so important in our warm climate.

However, the purpose of insulation goes beyond keeping things warm. Refrigerators and freezers, for example, need ample insulation and tight seals to keep food cold. Even the cooler you take on a camping trip couldn’t do its job if it wasn’t made out of insulating materials.

In this way, attic insulation is clearly not just reserved for cold climates; it also helps homes stay cool in the summer.

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Insulation is a Thermal Barrier

Wearing a coat makes you warm because it prevents your body heat from dissipating. Heat always moves toward cold, not the other way around. This means if you run the air conditioner to keep your home cool in the summer, insulation helps keep hot air from making its way inside.

This is possible because insulation is a thermal barrier, meaning it slows the transfer of heat through convection (movement through the air) and conduction (movement through physical contact). That’s how insulation can perform the double duty of keeping your home warmer in winter as well as cooler in summer.

Radiant barrier insulation is installed under the roofline, helping your home reflect (rather than absorb) heat from the sun. This helps keep your home a lot cooler and more comfortable.

Staying Cool & Comfortable

While walls need insulation too, the attic is the most important place to boost insulation if you discover your home doesn’t have enough. Attic insulation prevents sweltering summer temperatures from entering the attic and passing through the ceiling and into your home.

Consider that the average attic exceeds a grueling 130 degrees F on a hot summer afternoon. Without insulation to create a thermal barrier, this heat seeps down into the house, raising the indoor temperature by an average of 10 degrees. This can easily cause the air conditioner to work double time to cool down your home.

Contact the team at Gold Star Insulation to look into boosting attic insulation in your Sacramento home.

Where should you insulate in your home? Check out our interactive infographic:

Products We Install
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Energy Audits

Our team can help you save money with a home energy audit and air sealing services.

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Fiberglass

Our insulation team installs batt and blown-in fiberglass insulation.

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Cellulose

Environmentally friendly and effective, cellulose works well in homes and buildings.

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Spray Foam

Gold Star Insulation is a leading installer of spray foam insulation in the Sacramento area.

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Radiant Barrier

An attic radiant barrier can help keep your home cooler and more comfortable.

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Insulation Removal

Gold Star Insulation provides home insulation removal services.

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Air Sealing

We are committed to saving you money by sealing your attic—which is the main source of air leaks in the home.

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