Serving Northern IL & Chicago Suburbs

Vapor Barrier Insulation In Northern IL, Rockford, Chicago Suburbs & Southern WI

What Is Vapor Barrier Insulation?

Materials which are used to reduce vapor movement between the layers of a building are called vapor barriers. The use of vapor barriers, or vapor retarders, is an essential part of moisture control within commercial, residential and agricultural construction.

The use of vapor barriers prevents water vapor from condensing to liquid water within the structure, which can cause wood to rot and decay if enough moisture is present.

Vapor Barrier

What Products Can Be Used As A Vapor Barrier?

When selecting a vapor retarder, it is important to consider the permeance of the material, which is measured in perms. The lower the perm rating, the better the material will control the diffusion of water. Impermeable materials such as foil-faced insulation are typically installed in attics and walls.

Vapor retarders are categorized into three classes based on their permeance. Review the chart below to learn more about the products available per class.

What Does An Vapor Barrier Insulation Do?

Vapor barriers can help maintain a comfortable and healthy living environment by controlling moisture in basements, ceilings, crawlspaces, floors, slab-on-grade foundations, and walls. 

It is important to consult with a Comfort 1st Insulation professional technician in order to ensure that the installation of a vapor barrier is done correctly and safely.

Why Choose Our Team?

1. Professional Service

All Comfort 1st Insulation technicians are certified, insured, knowledgeable of current building codes, fully trained and punctual. 

2. Warranty

All services performed by Comfort 1st Insulation are warrantied as a promise to our customers that the job is always done right the first time.

3. Customer Satisfaction

Comfort 1st Insulation is devoted to improving our customer’s energy efficiency and comfort through insulation services. The work is never completed until the customer is satisfied!



1. Call Us

Consult with a Home Performance & Insulation Contractor for your free estimate and consultation.

2. Free Quote

Once you reach out, we’ll work with your schedule to plan an appointment for an expert to assess your home and provide an estimate.

3. Do the Work

After the assessment, you’ll be given a quote and we can proceed with performing work on your home.

4. Start Saving

Once the insulation work has been completed, you’ll notice decreasing utility bills, increased efficiency of the home, and greater comfort.

Certifications And Affiliations

Comfort 1st Insulation provides quality insulation services with expertise that can be clearly seen in our photo gallery. Review our work and if you would like any further information or have questions, please fill out our contact form and a member of our certified team can reach back out to you!

Who Can Help Me Install Vapor Barrier Insulation?

Curious about insulation installation for your home or place of work? Comfort 1st Insulation provides professional insulation services in Northern Illinois, the Chicago suburbs, the greater Rockford area, and southern Wisconsin. Give us a call at (833) 244-7283 to have one of our professionals inspect your attic. Have any inquiries for your Rockford area home or business? Please fill out our contact form to get ahold of the experts at Comfort 1st Insulation or email us at

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