Put in this ROCKWOOL Safe'n'Sound insulation for quieter and safer areas. This is an interior insulator made of high-density stone wool. It works well for ceilings, floors and walls between rooms. The 3-in thick, pre-cut batts measure 24 in x 48 in to fit steel studs. To adjust sizing or cut irregular notches, use a serrated knife. Position the insulation, then press it into place. This is sound-absorbing and fire-resistant insulation, so a snug fit ensures peak performance. You can put Safe'n'Sound insulation up quickly and reap the sound-dampening and fire-protection benefits immediately. In the event of a fire, this stone wool insulation won't smoulder or ignite. It's also inorganic and non-reactive. The insulation doesn't take on water or moisture, which prevents decay and discourages mould and mildew.
This product is certified by GREENGUARD, attesting that it has less of an impact on indoor air quality. The concentrations of the total volatile organic compounds (VOCs) and formaldehyde are less than 0.5 mg/m3, reducing the impact on human health in the home.