When to Replace Attic Insulation?

Although insulation is built to last 15-20 years, outside factors might lessen its lifespan. It’s essential to check on your attic every so often and report on it. Take a look at the insulation in the attic. Sometimes the insulation may need repair or complete replacement if ruined. Here are the main reasons why an attic may require new insulation:

What is Attic Insulation?

Attic insulation is a material that is installed in the attic in order to help keep the home warm in the winter and cool in the summer. There are many different types of attic insulation, but all of them have one common goal: to improve the comfort of the home and save on energy costs.

One of the most important things about attic insulation is that it should be installed properly. If it isn’t installed correctly, it won’t do its job and could even end up causing damage to the home. That’s why it’s important to use a qualified contractor who knows how to install attic insulation properly.

  • Rodents: Rodents find places to live within walls, crawlspaces, basements, and attics. Rodents leave behind diseases along with feces and urine that damage insulation. The insulation could carry the diseases throughout the home through air circulation. Check on your attic for any apparent signs of a rodent infestation.
  • Mold: If you see mold growth inside the attic, then your insulation will need replacement. Although mold cannot grow inside the insulationdue to fiberglass, it can rest on the surface of the insulation. If mold is found anywhere on the insulation, it must be replaced for health and safety.
  • Water damage: if an attic has experienced a water leak, the insulation must be replaced. The water can seep into the insulation, which stays within the material. The water travels from the insulation onto other structures, such as wood, damaging the entire attic.


It’s essential to keep an eye on your insulation to keep your home healthy. Businesses like Attic Man can help assess the damage and replace insulation. However, watch out for these main factors that require insulation replacement so that you can have long-lasting insulation that lasts a couple of decades.



In conclusion, attic insulation is an important part of your home’s energy efficiency. It can help keep your home warm in the winter and cool in the summer, and save you money on your energy bills. If you’re considering adding insulation to your attic, be sure to consult with a professional to find the right type and amount of insulation for your home.