Which Areas Require Open-Cell vs. Closed-Cell Insulation?

There is no doubt that spray foam insulation is the top insulation choice on the market these days. Whether for residential or commercial applications, spray foam insulation in Mississauga is superior for its durability, longevity, and thermal performance, making it a no-brainer. What property owners may struggle with is determining which type of spray foam to use throughout their space. Spray foam insulation’s R-value varies quite a bit depending on whether you install open-cell or closed-cell insulation. Some areas of your home/property may be better suited to one over the other. Contact EcoStar Insulation today to get started.

Here is a guide to choosing the right areas for open-cell vs. closed-cell spray foam insulation.

Open-Cell vs. Closed-Cell Spray Foam Insulation

Open-cell spray foam insulation is a lighter, spongy, softer variety of spray foam insulation. It tends to expand much more during the drying process, and is notable for its soundproofing capabilities. Because of its open-cell, porous structure, open-cell foam insulation has a lower R-value that sits between 3 and 4. 

Closed-cell spray foam insulation is a much denser, rigid spray foam variety. Its tightly packed structure gives it an excellent R-value that sits between 7 and 8. It is naturally water-resistant as well, meaning that you will not require a vapour barrier. 

Best Areas for Open-Cell Spray Foam Insulation

• Interior Walls & Ceilings: Open-cell is great for inner walls as it can help reduce sounds from travelling from room to room. Open-cell is sufficient for indoor structures, especially because moisture control is not usually required.
• Hard-to-Reach Areas: Any irregularly shaped structures in your home could benefit from open-cell spray foam insulation. Since open-cell insulation expands while it dries, it helps fill small gaps and cracks in oddly shaped spaces with ease. This could be beneficial for attics or hard-to-access areas.

Best Areas for Closed-Cell Spray Foam Insulation

Since closed-cell spray foam insulation has a natural moisture barrier, it is widely preferred when it fits into property owners' budgets. 

• Basements: Since basements are naturally prone to excess moisture and cold temperatures, closed-cell spray foam insulation is highly preferred. Closed-cell spray foam insulation’s R-value helps keep your basement temperature stable while limiting leaks and humidity-related damage.
• Exterior Walls: It provides added structural reinforcement while delivering high thermal resistance for improved energy efficiency.
• Roofing Systems: Closed-cell insulation is great for attics because it creates an airtight seal that keeps unwanted air and moisture out of your attic.

Choose EcoStar for Spray Foam Insulation in Mississauga

Spray foam insulation is an industry favourite for its quality and performance. When picking between open-cell and closed-cell insulation for your property, you need to consider which spray foam insulation’s R-value and properties will best support different areas of your property. Contact EcoStar today to get started.

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