closed CELL INSULATION

• High R-value: Closed-cell foam offers a high thermal resistance (R-value) of approximately 6.0–7.0 per inch, making it a powerful insulator even in thin layers.

• Air and moisture barrier: Its dense, enclosed cell structure creates an inherent air and vapor barrier, preventing air and moisture infiltration. This makes it an ideal choice for areas prone to humidity or water damage, such as basements, crawl spaces, and exterior walls.

• Structural reinforcement: Once cured, the rigidity of closed-cell foam strengthens the structure where it is applied. It adheres strongly to surfaces, adding to the racking strength of wall and roof assemblies.

• Durability and longevity: This type of foam does not settle, sag, or degrade over time, with a lifespan that can match or exceed the building itself. It also resists pests and does not promote mold or mildew growth.

• Limited expansion: Compared to open-cell foam, closed-cell foam expands less, which allows for multiple layers to be built up in a cavity to achieve higher R-values.

• Best for exterior and moist areas: Its superior moisture resistance makes it the top choice for below-grade applications, exterior walls, and any areas where bulk water or high humidity is a concern. 

Advantages

• High energy efficiency: The high R-value and excellent air-sealing properties lead to significant reductions in heating and cooling costs.

• Versatile applications: It is suitable for a wide range of uses, from residential projects to commercial, industrial, and even marine applications.

• Enhanced building strength: The rigid nature of the foam adds to the structural integrity of walls and roofs. 

Disadvantages

• Higher cost: Closed-cell foam is generally more expensive than open-cell foam due to its higher density and R-value.

• Less effective sound dampening: Because of its hardness, it is not as effective at absorbing sound waves as the softer open-cell foam.

• Professional installation recommended: Proper application requires specialized equipment and trained professionals.