Closed-Cell Spray Foam Insulation

Closed-cell spray foam is a high-performance insulation system designed for superior air sealing, moisture control, and long-term thermal efficiency in Spokane-area homes and commercial buildings.

Closed-cell spray foam insulation installation

Engineered for Maximum Performance

Closed-cell spray foam forms a dense, continuous insulation layer that expands to seal air leaks and reinforce the building envelope. Once cured, it creates a rigid barrier that supports consistent indoor comfort in all seasons.

With an exceptional R-value per inch, closed-cell foam delivers outstanding thermal resistance even in compact wall cavities, rim joists, crawl spaces, and roof assemblies.

This system is often selected for projects where performance, durability, and long-term efficiency are the highest priorities.

Complete Air Sealing

Expands to close gaps and penetrations, reducing uncontrolled air movement.

High R-Value per Inch

Delivers strong thermal performance where space is limited.

Moisture Management

Resists moisture movement and helps protect framing components.

Structural Reinforcement

Adds rigidity to walls and roof assemblies once cured.

Precision Installation

Professionally applied for consistent coverage and long-term reliability.

Built to Last

Maintains performance without settling or degradation over time.

Closed-cell spray foam insulation project in Spokane

Looking for the Best Insulation Solution?

Talk with Superior Insulation Co about closed-cell spray foam for your next project in Spokane or the surrounding area.

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