Many people looking to use Foam it Green insulation in their homes ask us if they need to use spray foam insulation exclusively, or if they can combine different insulation materials to complete their project. You have many options when insulating, and combining your materials may be the most cost-effective solution for your specific situation.
One method is to combine different types of spray foam to get complete coverage and balance your costs. The best way to do this is to use Foam it Green Closed Cell Spray Foam for the first 50+ percent of the R value you need for your home. For most, that’s 2 inches of spray foam, although this amount varies depending on your geographic location and whether you heat your home in the winter months. This first layer will provide an airtight barrier in your walls or attic space, offering you the best protection possible for the base layer of your insulation.
Over this layer, you can switch to the more affordable Anti-Microbial Open Cell Spray Foam, which will help offer a high level of mold resistance. Plus, since Foam it Green is sprayed on, it is a quick and easy solution that offers a higher R value per inch than batting. You can also cut and lay fiberglass or other insulation materials on top of the initial spray foam layer, using this to back up and build your combined overall R value for the insulation.
The important thing to keep in mind with cold climates is that the warm air of your home’s heating system tends to condense when reaching the exterior walls or ceilings that are cooled by the cold air outside during winter months. When this happens, condensation can occur inside the home, which is what often leads to mold and wear with traditional batting. This is why it’s important that more than 50 percent of your total R value is provided by spray foam insulation in mixed material situations.
For more on determining the correct level of insulation – including a few common example R-value combinations – check out our complete article on Combining Insulations.
At Foam it Green, we can help you determine the best approach for your specific project. Contact us today for a free consultation, or reach out by email or phone for answers to your questions about spray foam insulation.