What is closed-cell spray foam insulation?

Closed-cell spray foam is a rigid, high-density insulation material that expands upon application, forming a continuous air and moisture barrier. It provides structural support and has a higher R-value per inch than most other insulation types.

How does closed-cell spray foam differ from open-cell spray foam?

Closed-cell spray foam is denser and more moisture-resistant than open-cell foam. It offers a higher R-value, adds structural strength, and acts as a vapor barrier, making it suitable for areas with high humidity or where additional rigidity is beneficial.

What is the R-value of closed-cell spray foam?

Closed-cell spray foam typically has an R-value of about 6 to 7 per inch. This high insulating value allows for better thermal resistance in a thinner layer compared to other materials.

Where can closed-cell spray foam be used?

It can be applied in attics, crawl spaces, walls, basements, and under slabs. It’s especially effective in areas where moisture control and air sealing are important.

Is closed-cell spray foam waterproof?

While not completely waterproof, closed-cell spray foam is highly water-resistant. It acts as a moisture barrier and helps prevent mold and mildew by limiting water intrusion.

How long does closed-cell spray foam last?

When properly installed, closed-cell spray foam can last for decades. Its lifespan often exceeds 30 years without significant degradation in performance.

Is closed-cell spray foam safe for indoor use?

Yes, once fully cured, closed-cell spray foam is inert and safe. Proper ventilation during installation is important, and certified installers follow safety guidelines to ensure indoor air quality.

Does closed-cell spray foam add structural strength?

Yes, its dense structure reinforces walls and roofs, contributing to the overall durability of a building. It can increase a wall’s racking strength by as much as 200%.

Can closed-cell spray foam be applied in cold weather?

Yes, but installation requires temperature management. Professional installers use heated hoses and control application conditions to ensure proper adhesion and curing in colder climates.

How thick should closed-cell spray foam be applied?

For walls and ceilings, a typical application ranges from 2 to 3 inches. In roofing or high-performance applications, it may be applied thicker depending on the required R-value.

Does closed-cell spray foam need a vapor barrier?

In most cases, it does not. Closed-cell spray foam already functions as a vapor barrier when applied at sufficient thickness, usually 1.5 to 2 inches.

Can closed-cell spray foam be used in existing homes?

Yes, it can be retrofitted into existing homes. Access to the application area is needed, and it may involve removing some drywall or siding.

How long does installation take?

Most residential projects are completed in one to two days. Time depends on the size of the area and site preparation requirements.

What kind of maintenance does closed-cell spray foam require?

It requires little to no maintenance. Once installed, it remains effective without sagging, settling, or absorbing moisture.

Can pests damage closed-cell spray foam?

Closed-cell foam does not attract pests or serve as a food source. It is not pest-proof but is more resistant to intrusion than many other insulation types.

How does closed-cell spray foam affect indoor air quality?

When properly installed and cured, it improves indoor air quality by sealing gaps and limiting outside pollutants. Initial installation requires proper ventilation.

Does All Foam & Insulation, LLC provide closed-cell spray foam installation in Medford, OR?

Yes, All Foam & Insulation, LLC offers closed-cell spray foam services throughout Medford and nearby areas. The team is experienced in both residential and commercial applications.

What areas does All Foam & Insulation, LLC serve?

Service areas include Medford, Ashland, Central Point, Eagle Point, Grants Pass, Roseburg, White City, and other surrounding parts of Oregon.

How can I contact All Foam & Insulation, LLC for an estimate?

You can call (541) 826-9600 or email [email protected] to request a quote or schedule an on-site assessment.