Obviously, if your insulation has water damage or mold, it needs to be replaced. Damaged insulation can compromise your and your family’s health. Damaged insulation leads to bad indoor air quality, which is especially dangerous for infants and the elderly.
Signs you need to replace your attic insulation include:
Frozen pipes
Higher heating/cooling bills
Ice dams on roof/gutters during a cold snap
Pests seeking air movement (as insulation blocks air leaks)
Temperature fluctuations in rooms
Water/moisture in the attic
Homeowner tax credits are another incentive to add insulation to your attic, crawl space or garage.