Fiberglass insulation can also be reused after the initial installation. When installed by professionals, it can be removed easily and put back in place. Fiberglass can also be reclaimed from demolition debris and recycled into a new product.

What can you do with old insulation?

When disposing of old insulation, find a certified recycling or waste management facility. Local regulations may restrict how fiberglass or cellulose insulation can be acceptably disposed of. Fiberglass insulation can sometimes be recycled to make new insulation.

Should I keep old insulation?

Yes! You can absolutely new insulation over old insulation… as long as it isn’t wet. … Wet insulation can lead to mold, mildew, or even the rotting of your ceiling or roof rafters.” In fact, you can add new insulation over the existing installation in other areas of your home, not just the attic.