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Open or closed-cell spray insulation in residential applications

Open or closed-cell spray insulation in residential applications

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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 and bond strength

Open-cell spray foam insulation

  • Can be installed at a 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

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