Closed Cell Insulation

Closed-cell spray foam is a high-performance insulation material known for its strength, moisture resistance, and unmatched thermal efficiency.

Closed Cell Insulation

Closed-cell spray foam is a rigid insulation material composed of tightly packed cells filled with gas. This closed-cell structure makes the foam impermeable to air and moisture, resulting in a durable, high-density barrier that delivers exceptional insulation performance and long-lasting protection.

Closed-cell spray foam is a high-performance insulation material known for its strength, moisture resistance, and unmatched thermal efficiency. With a dense structure and a high R-value per inch, it not only insulates but also reinforces your building envelope—making it ideal for demanding residential, commercial, and industrial applications.

Why Choose Closed Cell Insulation?

Highest R-Value Per Inch

Closed-cell spray foam delivers superior thermal insulation—typically R-6 to R-7 per inch—which means better performance in less space.

Acts as a Vapor & Moisture Barrier

Its dense structure makes it highly resistant to moisture, helping protect against mold, mildew, and water damage—perfect for basements, crawl spaces, and roofs.

Adds Structural Strength

Unlike other insulation types, closed-cell foam reinforces walls and roofing systems, improving overall building durability and resistance to wind, water, and impact.

Exceptional Air Sealing

Closed-cell foam expands and hardens into a solid barrier, sealing out air leaks that can lead to energy loss, drafts, and poor indoor air quality.

Long-Lasting & Maintenance-Free

It won’t sag, settle, or deteriorate over time. Once installed, it provides consistent performance for decades—saving you money year after year.

Great for Extreme Conditions

Closed-cell is ideal for areas exposed to high humidity, extreme temperatures, or high wind loads. It performs where other materials fail.

At Oly’s Spray Foam Insulation

Closed Cell Insulation