G

Glossary

Rigid Insulation

Rigid board material that provides thermal resistance. Foam plastics such as expanded polystyrene (EPS), extruded polystyrene (XPS), and polyisocyanurate are commonly used.

Related terms: Expanded Polystyrene Insulation, Extruded Polystyrene Insulation, Polyisocyanurate

Related resource: Guide to Insulating Sheathing