OPEN-CELL VS CLOSED-CELL SPRAY FOAM
Both types of insulation materials are effective, but they have some key differences:
1. Cell Structure: Open-cell foam is composed of cells that are not completely closed, resulting in a softer, more flexible material. Closed-cell foam, on the other hand, has cells that are completely closed, creating a denser and more rigid structure.
2. Density: Closed-cell foam is denser and has a higher R-value per inch compared to open-cell foam. This means that closed-cell foam provides better insulation with less material.
3. Moisture Barrier: Closed-cell foam acts as a moisture barrier due to its closed-cell structure, while open-cell foam can allow some moisture to pass through. This makes closed-cell foam a better choice for areas prone to moisture intrusion, such as basements or crawl spaces.
4. Air Barrier: Both types of foam provide an effective air barrier when properly installed, but closed-cell foam typically provides a more airtight seal due to its denser structure.
5. Cost: Closed-cell foam tends to be more expensive than open-cell foam due to its higher density and insulating properties.
Choosing between open-cell and closed-cell spray foam insulation depends on factors such as budget, desired insulation performance, moisture considerations, and specific application requirements.