Is air sealing my attic more important than adding more insulation?
The answer is quite simple “NO”. Although air leakage accounts for 40% of a home’s energy loss, when you insulate your home with anything the home will get tighter and have less air flowing through it. This is exactly what happens when adding additional insulation to your attic. Cellulose by itself is a good product to upgrade your attic for air tightness and insulation. A layer of spray foam and then blown cellulose is the best but there is also an associated cost. A fibrous insulation will always work better when the airflow is slowed down or minimized around it. Connect with an Insta insulation representative and what options is right for you.