The Best Insulation for Existing Homes
Old cellulose and fiberglass in exterior walls are not good enough to stop airflow in your home.
If you have no insulation, it's worse -- nothing will stop that air from getting in or heat from getting out.
Injection foam insulation creates an air seal that will stop air movement. Stopping that air leakage can make a huge difference in the comfort of your home, as well as the energy efficiency.
1. Remove a strip of siding around the home.
2. Drill a hole in each stud cavity and check for obstructions.
3. Inject RetroFoam into each cavity.
4. Replace siding and cleanup project.