closed cell spray foam
Choose closed cell spray foam for superior insulation! Ideal for walls, attics, and crawl spaces. Boost energy savings and comfort. Get in touch today!
attic spray foam insulation
Closed cell spray foam is a highly effective insulation material that can help to improve the energy efficiency and comfort of a building. It is particularly useful in applications where a high R-value and an air and moisture barrier are needed, such as in crawl spaces, attics, and walls.

Closed Cell Spray Foam Insulation for Maximum Efficiency & Protection
Closed cell spray foam insulation is one of the most advanced insulation options available. It provides superior air sealing, moisture resistance, and structural strength—helping improve your home’s comfort, energy efficiency, and durability. Get a free estimate today and find out if spray foam is right for your home.
Adds Structural Strength
Hardens as it cures, reinforcing roof decks and walls with added rigidity
Long-Lasting Performance
Won’t sag, settle, or degrade over time, offering decades of reliable insulation
Space Saving
Its high efficiency means you need less material to achieve optimal performance—ideal for low-clearance areas
Air & Moisture Barrier
Seals out air leaks and blocks moisture intrusion—great for preventing mold, mildew, and condensation
What Is Attic Closed Cell Spray Foam Insulation?
Closed cell spray foam is a high-performance insulation applied to attic surfaces that expands to create a rigid, airtight seal. It blocks air leaks, moisture, and temperature transfer while providing a high R-value and added structural strength, ideal for maximum efficiency and long-term performance.
Added Strength & Durability
Closed cell spray foam hardens after application, adding structural rigidity to walls, ceilings, and floors. This can help improve the overall strength and durability of your home. Ready to improve your home’s comfort, efficiency, and protection? Our team is here to help from start to finish. Fill out the form below to get your free, no-obligation estimate.
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Frequently Asked Questions About attic closed-cell spray foam insulation
What is closed-cell spray foam insulation?
Closed-cell spray foam insulation is a high-performance insulation material made of two liquid components that are sprayed into place and expand to form a dense, solid foam. It creates a strong, air-tight seal that provides excellent thermal resistance and moisture control in the attic.
How does closed-cell spray foam insulation work?
Closed-cell spray foam expands upon application, filling gaps, cracks, and cavities in your attic. Its dense structure blocks heat transfer, provides a superior air seal, and offers moisture resistance, making it an effective solution for energy efficiency, comfort, and protecting against mold growth.
What are the benefits of using closed-cell spray foam in the attic?
Closed-cell spray foam provides superior insulation by offering higher R-values per inch of thickness compared to other types of insulation. It creates an air-tight seal, improving energy efficiency, reducing drafts, and preventing moisture from entering the attic, which can lead to mold or structural damage.
What is the R-value of closed-cell spray foam insulation?
Closed-cell spray foam typically has an R-value of about R-6 to R-7 per inch of thickness, which is significantly higher than other insulation types like fiberglass or cellulose. This makes it a great choice for areas with limited space or for achieving higher insulation levels in a thinner application.
How long does closed-cell spray foam insulation last?
Closed-cell spray foam insulation is incredibly durable and can last for the lifetime of your home. It does not sag, settle, or degrade over time, and it maintains its insulating properties unless exposed to extreme moisture or physical damage.
Can I install closed-cell spray foam insulation myself?
While it is technically possible to purchase DIY kits, it is highly recommended to hire a professional for closed-cell spray foam installation. The application requires specialized equipment, and the installation process must be done correctly to ensure safety, effectiveness, and proper ventilation.
What are the downsides of closed-cell spray foam insulation?
One downside of closed-cell spray foam insulation is its higher cost compared to other insulation options like fiberglass or cellulose. Additionally, it requires proper installation, and if not applied correctly, it can lead to issues such as trapped moisture or improper ventilation.
How much does closed-cell spray foam insulation cost?
The cost of closed-cell spray foam insulation can vary depending on the size of your attic, the thickness of the foam, and labor costs. It is generally more expensive than fiberglass or cellulose insulation, but its superior performance and long-term benefits often make it a worthwhile investment.
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