Open-cell and closed-cell spray foam insulation each play an important role in residential construction. Open-cell spray foam, ideal for interior applications such as walls, the underside of the roof deck and attics, offers different performance advantages compared to those of closed-cell spray foam insulation.
Thanks to the individual performance properties of open-cell and closed-cell spray foam insulation, builders can specify both within a home for insulation and an air barrier, for a comprehensive performance option.
Closed-cell spray foam insulation
- Higher R-value per inch makes it easier to accommodate high R-value requirements in narrow spaces
- Lower vapor permeance (can be a Class II VDR)
- Ideal for exterior, basement and crawlspace applications
- Can reject bulk water, making it ideal for homes in areas prone to flooding
- Can be applied at very low temperatures (as low as 5oF)
- Adds wall racking strength
- Higher tensile bond strength
Open-cell spray foam insulation
- Can be installed at significantly lower cost than closed-cell
- Can achieve specified R-values
- Ideal for interior applications such as walls, ceilings and attics
- Can achieve greater R-value if not restricted by space
- Permits bi-directional drying
- Will accommodate long-term creep and seasonal movement
- Hydrophobic material
