Polyisocyanurate Foam Insulation
|Feature: R-value of 6 to 6.5 per inch of thickness.|
|Benefit: One of the highest R-values available, resulting in less thickness needed to achieve desired thermal performance.
Lowers cost for owner to maintain process temperatures.
|Feature: Foil facers on both sides.|
|Benefit: Adds additional R-Value by reflecting radiant heat.
It’s a moisture barrier to help prevent costly tank corrosion.
|Feature: Foil on the top edges of foam insulation.|
|Benefit: Additional precaution to prevent moisture penetration.|
|Feature: Closed-cell foam.|
|Benefit: Moisture Resistance.
<0.3 perm water vapor transmission.
<1% water absorption.
|Feature: Compressive strength of 20psi to 25psi (pounds per sq. inch)|
|Benefit: Handles higher roof loads than fiber insulation to allow foot traffic.|
Other insulation used as inner-face layer to extend panel temperature range:
|Fiberglass Board 3#||4.55 R-value per inch||up to 1,000° F|
|Mineral Wool board 4#||4.0 R-value per inch||up to 1,200° F|
|Calcium Silicate block||2.63 R-value per inch||up to 1,200° F|
|Foamglas block||3.45 R-value per inch||-450° to 900° F|