The Office of Energy Efficiency and Renewable Energy in the DOE have said that HVAC systems are the biggest energy consumer in a conventional home — they can account for as much as half of a home’s total energy use. About 20% - 40% of the heated or cooled air circulating through forced air ducts leaks into the basement, attic, and inside the walls.
What is it?
The technology behind AeroBarrier was invented by the U.S. Department of Energy and has been developed. AeroBarrier is a goopy polymer that's blown in to a building and that accumulates in gaps and cracks to seal envelope air leaks around ceilings, walls, floors, doors, windows, and electrical and plumbing fixtures in a single step process. AeroBarrier and other products, such as tapes and gaskets as well as integrated sheathing systems such as ZIP System, are evidence of market transformation sparked by demand for more airtight building enclosures as seen in passive house standards from PHIUS and PHI and updates to the 2102 and 2015 International Energy Conservation Code, or IECC.