Ventilated roof systems typically rely on batt insulation to provide adequate thermal resistance in the assembly. Providing high quality insulation between cathedral ceiling roof joists is an easy method of improving the overall energy performance of a building.

However, not all batt insulations perform equally: ROCKWOOL COMFORTBATT® is a stone wool insulation that provides reliable thermal resistance over time.

The insulation batts will not change shape or sag when exposed to temperature changes or moisture. This minimizes thermal bridging through the roof assembly and ensures reliable long-term energy savings.

If moisture accumulates in the cathedral ceiling, the insulation will not become a medium for mold or fungal growth. The stone wool batts are water-repellent and any moisture that manage to penetrate into the insulation will dry outwards, as the batts are highly vapor permeable.

These properties improve the overall durability of the roof assembly.