Use Rockfill with Top-Up
If your existing insulation doesn’t reach joist level and isn’t insulating effectively, Rockfill can be easily spread on top and then overlaid with Rockwool Top-Up roll to create total insulation cover.
If your existing insulation doesn’t reach joist level and isn’t insulating effectively, Rockfill can be easily spread on top and then overlaid with Rockwool Top-Up roll to create total insulation cover.

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