If you take a close look at your exterior and interior walls, you're likely to notice a few little gaps and holes. If you have a newer home, you'll probably see them around electrical outlets and places where wires and pipes pass through the walls. If you have an older home, you may even find cracks and gaps between panels.
How can you seal these little gaps? Spray foam insulation is the perfect solution. It expands to fill in these gaps and cracks, so air can no longer escape from them. As a result, less heat is lost from your home in the winter, and the hot summer air does not flow in during the summer. You'll notice that your energy bills decrease and your home's temperature becomes more even and comfortable once you seal the gaps.
Even if you've been rather unaware of them until this point, these small gaps in your walls should not be ignored. In homes that are otherwise well insulated, they can compromise the barrier between indoors and outdoors, undermining the entire insulation effort. Cold air is not the only thing that flows in -- moisture, pollen, and pests can also enter through these cracks and cause endless issues. If moisture enters your home, for example, you may end up with mold growth. It's a lot harder to fight off mold than it is to have your cracks and gaps sealed with spray foam insulation.
One-component spray foam in a can is available to both professionals and consumers. You can likely seal small holes yourself by following the directions on the can. For larger projects, use the "find an applicator" tool on NCFI Polyurethanes website to find a certified spray foam applicator who offers services in your area.