CCM provides details for the NVELOP roof, wall and below-grade systems based on your building’s location, use and type of construction. NVELOP prescribes a complete air and moisture barrier, and includes highperforming, continuous insulation.

A study completed by the National Institute of Standards and Technology (NIST)* in 2005 indicated that minimizing air leakage in a building envelope resulted in annual savings of up to 37 percent. As energy prices continue to rise, this percentage cannot be ignored.
The American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) recently raised its Energy Standard, ASHRAE 90.1, to require a minimum insulation R-value of 20 for new roof and wall construction. This is a 33% increase from the previous standard, standard and an obvious affifirmation of the value that insulation plays in building performance.

"Minimizing air leakage in a building envelope resulted in annual savings of up to 37 percent."

Canada and some U.S. states require air barriers in their energy codes. ASHRAE is also developing a standard for high performance buildings, called 189P, which will likely include air barriers. Because of their widely-recognized benefits, air barriers are specified on many projects throughout the USA, even where they are not mandated.