Garage Attic Insulation
Garage insulation from Green Attic, Chicago's largest insulation supplier, can transform your chilly or scorching garage into a comfortable, usable space year-round.
Trusted by homeowners for reliable, energy-saving insulation solutions.
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Increased Comfort
Enjoy a temperature controlled environment all year round. No more battling extreme temperatures!
Energy Savings
Reduce the strain on your HVAC system by maintaining a more consistent temperature within your garage. This translates to lower energy bills and a smaller environmental footprint.
Protected Vehicles
Extreme temperatures can wreak havoc on your car's battery and engine performance. Insulation helps maintain a stable temperature, extending the life of your vehicle.
Reduced Noise Pollution
Insulation acts as a sound barrier, minimizing noise from your garage entering your living space and vice versa. Perfect for those late-night tinkering sessions!
Prevents Moisture Damage
Moisture buildup can lead to mold growth and damage to your belongings. Insulation helps regulate humidity levels in your garage, creating a healthier environment.
Increased Home Value
A well-insulated garage adds to the overall value and appeal of your home.
Your Chicagoland Garage Insulation Experts
Green Attic Insulation isn't just another insulation garage company. Here's why we're known as Chicagoland's premier insulation provider:
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1. Experience and Expertise
Our team of certified and insured professionals boasts years of experience in garage insulation projects. We know the ins and outs (pun intended) of keeping your garage comfortable and energy-efficient.
Our team of certified and insured professionals boasts years of experience in garage insulation projects. We know the ins and outs (pun intended) of keeping your garage comfortable and energy-efficient.
2. Customer-Focused Approach
We understand that every garage is unique. We'll work closely with you to assess your needs and recommend the most appropriate insulation solution for your budget and space.
We understand that every garage is unique. We'll work closely with you to assess your needs and recommend the most appropriate insulation solution for your budget and space.
3. High-Quality Materials
We use only the best, most energy-efficient insulation materials on the market, ensuring your garage stays comfortable for years to come.
We use only the best, most energy-efficient insulation materials on the market, ensuring your garage stays comfortable for years to come.
4. Commitment to Quality
We take pride in our workmanship and offer a satisfaction guarantee on all our services.
We take pride in our workmanship and offer a satisfaction guarantee on all our services.
Frequently Asked Question
What type of insulation is best for garages?
The best insulation for garages depends on how you use the space, whether the walls are open or finished, and your budget, which makes it easy to choose an option that fits your comfort goals.
Closed-cell spray foam is the top pick for maximum comfort because it delivers excellent R-value, air sealing, and moisture resistance. For a cost-effective upgrade, fiberglass batts work great in open stud bays, while rigid foam board is ideal for concrete walls and garage doors.
Closed-cell spray foam is the top pick for maximum comfort because it delivers excellent R-value, air sealing, and moisture resistance. For a cost-effective upgrade, fiberglass batts work great in open stud bays, while rigid foam board is ideal for concrete walls and garage doors.
Can I prevent my garage from becoming a "sauna" during the humid summer?
Yes, you can absolutely keep your garage from turning into a humid “sauna” by installing a dehumidifier, insulating the space, and improving ventilation. A dehumidifier with a continuous drain hose is a game-changer for pulling moisture out, while insulating the garage door and walls and replacing weatherstripping helps block hot, sticky air from sneaking in.
For an even bigger comfort upgrade, an exhaust fan or attic fan does a great job of moving warm air out efficiently, and a portable AC or mini-split can take things to the next level by delivering steady, reliable cooling whenever you want it.
For an even bigger comfort upgrade, an exhaust fan or attic fan does a great job of moving warm air out efficiently, and a portable AC or mini-split can take things to the next level by delivering steady, reliable cooling whenever you want it.
Will garage attic insulation make the room above the garage warmer in winter and cooler in summer?
Yes, garage attic insulation can make the room above the garage noticeably warmer in winter and cooler in summer by creating a strong thermal barrier and reducing drafts. With good air sealing, the floor feels more comfortable year-round, and your HVAC system runs more efficiently.
For best results, pair the attic insulation with an insulated garage door and seal leaks around ducts or knee walls to boost comfort even further.
For best results, pair the attic insulation with an insulated garage door and seal leaks around ducts or knee walls to boost comfort even further.
Should the garage attic be insulated at the ceiling (garage lid) or at the roofline, and which is better for Chicago?
For Chicago, the garage attic should be insulated at the ceiling (garage lid or attic floor) is usually the better choice because it is cost-effective, straightforward to install, and effectively separates the unconditioned garage from living spaces above.
This setup also keeps the attic vented, which helps manage moisture and supports roof performance in cold weather. Insulating the roofline is a fantastic option when you want the attic to be a comfortable, conditioned space for HVAC equipment or finished storage, helping reduce temperature swings and improve overall comfort.
This setup also keeps the attic vented, which helps manage moisture and supports roof performance in cold weather. Insulating the roofline is a fantastic option when you want the attic to be a comfortable, conditioned space for HVAC equipment or finished storage, helping reduce temperature swings and improve overall comfort.
Do I need air sealing before adding insulation in a garage attic?
Yes, you need air sealing before adding insulation in a garage attic because it locks in comfort and helps your insulation perform at its best. Sealing gaps and penetrations reduces drafts and can significantly improve energy savings while also helping prevent moisture issues down the road.
Once the leaks are sealed, your new insulation delivers a much more noticeable, long-lasting upgrade.
Once the leaks are sealed, your new insulation delivers a much more noticeable, long-lasting upgrade.
If the garage is unheated, do I still need ventilation (soffit/ridge) after insulating?
Yes, you still need soffit and ridge ventilation after insulating an unheated garage because it supports steady airflow that keeps the roof system dry and performing at its best for long-lasting shingles and a healthier space.
Even with an unheated garage, moisture from rain or snow on vehicles and natural temperature swings can still create a damp environment, so good airflow helps keep the space feeling fresher and more stable. With insulation in place, that moisture is much less likely to linger in the roof deck, helping the area stay drier and better protected over time.
A simple setup with soffit-to-ridge airflow (often with baffles) and a well-sealed ceiling supports a durable roof deck and a cleaner, drier attic space.
Even with an unheated garage, moisture from rain or snow on vehicles and natural temperature swings can still create a damp environment, so good airflow helps keep the space feeling fresher and more stable. With insulation in place, that moisture is much less likely to linger in the roof deck, helping the area stay drier and better protected over time.
A simple setup with soffit-to-ridge airflow (often with baffles) and a well-sealed ceiling supports a durable roof deck and a cleaner, drier attic space.
What R-value should I target for a garage attic in Chicago (Zone 5)?
For a garage attic in Chicago (Zone 5), a smart R-value target is R-49 to R-60, with R-49 as a solid baseline and R-60 delivering even better comfort and efficiency during Chicago’s colder stretches.
You will typically need about 13 to 17+ inches of fiberglass or cellulose to reach that range, and air sealing first helps your insulation perform at its best and maximize the R-value.
You will typically need about 13 to 17+ inches of fiberglass or cellulose to reach that range, and air sealing first helps your insulation perform at its best and maximize the R-value.
Service Areas
Northwest Suburbs
North Shore
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