Interior-Insulated, Mineral Fibre & Foam Hybrid:

Air-impermeable, moisture-tolerant rigid or spray-in-place insulation is applied to the interior of the concrete foundation wall and behind the stud wall, with batt insulation being placed onto the rigid or spray foam between the studs. High effective R-values are achieved by using continuous insulation placed directly against the concrete foundation wall.

Placement of insulation on the interior of the concrete foundation wall results in cooler concrete interior surface temperature and consequently an increased risk of condensation and associated damage. A robust interior air barrier at the insulation or using the insulation should be installed to limit this risk.