Closed-cell spray foam sets into a rigid solid ... Spray foam insulation is more expensive than other types of insulation, such as mineral or glass-wool, polystyrene slabs or expanded polystyrene (EPS ...

Confused by the difference between PIR and PUR, or EPS and XPS? Read on to find out the strengths of various insulation boards, where to buy them and how they are best applied around the home.

About Polyiso Insulation Polyiso is a closed-cell, rigid foam board insulation used in roof and wall assemblies within commercial and residential buildings of all types. Because of its high ...

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