Ventilated roof systems typically rely on batt insulation to provide adequate thermal resistance in the assembly. Providing additional attic insulation 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 and will not change shape when exposed to temperaturechanges or moisture, ensuring full coverage of the ceiling area, minimizing ceiling heat loss.

If moisture accumulates in the attic space, the insulation will not become a medium for mold or fungal growth. The stone wool batts are water repellent and any moisture that manages to penetrate the insulation will dry outwards as the batts are highly vapor permeable. These properties improve the overall durability of the roof assembly.