Unvented attics are a real concern for home owners. Receiving proposals for properly foaming the attic roof-line is nothing like getting bids on blowing cellulose on the attic floor or installing fiberglass insulation. Foaming the attic alters the chemistry of the entire home and has a direct impact on its pressure boundaries, the operation of the central HVAC system, water vapor characteristics, heat loads, etc.

Central Air-conditioning and heating systems and the ductwork are usually located in our attics simply because this is the easiest place to install them. However, installing the system in the attic is actually the Top 10 Dumb Things To Do In The South for several reasons. First, and most importantly, the ductwork leaks. Case studies of thousands of homes from different parts of the country over many years continue shedding light on the fact that all ductwork leaks…