Open Cell Vs. Closed Cell Foam

What’s the difference between open-cell and closed-cell insulation?

Choosing between open-cell and closed-cell polyurethane spray foam for insulation involves considering flexibility, density, and expansion capabilities. Open-cell foam is softer and expands to 3 inches, while closed-cell foam is denser, expands to about 1 inch, and offers superior insulation against heat flow. Project-specific factors such as location, structure, and energy efficiency priorities are crucial in deciding what type of foam to go with.

Cell Types in Focus

Open-Cell Foam: Features open cells, rendering the foam softer and more flexible.

Closed-Cell Foam: Utilizes encapsulated cells, forming a robust air and vapor barrier, resistant to water intrusion. This results in a stiffer and more durable insulation product.

Density Dynamics

Open-Cell Foam: Not as dense, with an approximate density of 0.5 pounds per cubic foot.

Closed-Cell Foam: Higher density, reaching up to 1.75 pounds per cubic foot, contributing to enhanced durability.

Foam Expansion Capability Considerations

Open-Cell Foam: Expands to 3 inches of thickness in a single application, suitable for standard structures.

Closed-Cell Foam: Expands to about 1 inch, providing flexibility for multiple applications and achieving higher R-values per inch.

R-Value Insight

• Closed-Cell Foam: Boasts a superior R-value compared to open-cell foam, making it more effective in insulating commercial structures against heat flow.

Additional Note on Open-Cell Foam:

• Our light density open-cell foam products are free from blowing agents such as CFCs or HCFCs. While installation may generate some off-gassing, it dissipates quickly, and the foam sets within seconds, eliminating further emissions.

Determining the suitable insulation type hinges on various factors:

• Location: Consider your commercial structure's geographical location.
• Structure Features: Assess your roof deck and crawl spaces.
• Energy-Efficiency Priorities: Gauge the importance of energy efficiency, air seals, and heat loss.
• Weather Conditions: Account for the prevailing weather conditions in your area.
• Specific Needs: Align the insulation choice with your unique goals and requirements.Make an informed decision by weighing these factors, ensuring the selected foam insulation aligns seamlessly with the demands of your commercial project.

In summary, when selecting insulation for commercial projects, the choice between open-cell and closed-cell polyurethane spray foam is critical. Open-cell foam is softer, expands up to 3 inches, and has lower density, whereas closed-cell foam is denser, expands about 1 inch, and provides superior insulation against heat flow. Deciding factors include the project's location, structural features, energy efficiency priorities, and specific insulation requirements.

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