R-Value: Rigid Board Insulation compared to Spray Foam | Icynene

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R-Value: Rigid Board Insulation compared to Spray Foam

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Curved exterior commercial building surface with Icynene closed cell spray foam

With R-values* for Icynene’s medium density products ranging from R-4.9 to R-7 per inch* of thickness, spray foam typically meets or exceeds the thermal performance compared to rigid foam board insulation products of comparable thickness.

With its greater thermal resistance (R-value*), the use of spray foam insulation can lead to reductions in overall wall thickness over foam board designs, thereby providing a building owner with additional value.

Also, because it is fully adhered to the substrate, there are fewer opportunities for convection and/or air leakage to reduce its performance. This advantage becomes even greater when walls are non-rectangular/odd-shaped or the wall has penetrations like anchors, attachments, fasteners or piping that board products have a difficult time fitting around.

Read all about the performance and construction advantages including R-Value of spray foam insulation compared to rigid insulation foam board in exterior continuous insulation applications in the new white paper “The Performance Benefits of using Medium Density Spray Foam in Continuous Insulation Applications”.

Read the entire white paper by clicking the link below.

Click here to access the White Paper

* Aged Thermal Resistance at 1 inch according to ATSM C 518

* R means resistance to heat flow. The higher the R-value, the greater the insulating power. Compare insulation R-values before you buy. There are other factors to consider. The amount of insulation you need depends mainly on the climate you live in. Also, your fuel savings from insulation will depend upon the climate, the type and size of your house, the amount of insulation already in your house, and your fuel use patterns and family size. If you buy too much insulation, it will cost you more than what you'll save on fuel. To get the marked R-value, it is essential that this insulation be installed properly.

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