Originally Posted by
Cajun90
_ Not even close. The foam expands and acts as an air barrier. I spent a lot of years reseraching the stuff before using it. It is gaining traction slowly in the South. It is applied on the roof line and not the ceiling and obviously to all exterior walls. I can walk into my attic in the midde of the summer and it won't be more than eighty degrees. It is mold resistant and bugs and rodents hate the stuff. As a bonus kids allergies went down significantly. Cellulose and most loose fill insulation will become airborne at some point. If you have dust problems in your house see if that dust is the same color as the loose fill insulation in your attic? By the way R-values don't mean much when it comes to foam but that is a long conversation. _