You’ve determined that the insulation in your existing home is no longer sufficient, but do you need to remove the existing traditional (fiberglass batts, blown-in insulation, etc.) insulation before new spray foam insulation can be installed? The truth is, it’s best to have the old insulation removed before installing new for several reasons.
- Clean Space for Spray Foam to Fill. Specific areas of your home require different installation and cleanup methods for spray foam insulation. Any space where spray foam insulation will be installed will need to have the existing insulation completely removed so the new insulation can reach into every nook and cranny. The presence of old insulation can actually prevent spray foam insulation from properly insulating your attic.
- Damage to Walls. When insulating walls, the drywall needs to be removed before you caninstall the spray foam. Spray foam expands rapidly when it is applied to the inside of walls and may overfill the space, causing damage to existing drywall. If there is existing fiberglass or cellulose in the walls, it can either compress it or prevent the foam from filling the cavity the way it should.
- Allergens and Mold. Fiberglass and cellulose are known to retain allergens and are susceptible to retaining moisture that leads to the growth of mold. These issues can lead to health problems.
- Rodents and Pests. Old insulation can also be a haven for rodents and other pests, which can bring diseases into your home or cause damage to walls, floors or wiring.
Most companies will remove the old insulation and dispose of it for you. Spray foam insulation needs a clean space to adhere to, and your old insulation is just in the way. At Cape Fear Foam LLC, we have the expertise and experience to take care of your insulation needs. We are a family-owned business and have been providing quality house insulation solutions for over 14 years. Give us a call today!