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ACCA Publishes New Technical Bulletin On Determining Insulation Values In Existing HomesSubscribe to RSS feed

ACCA, the nation’s largest association of indoor environmental systems professionals, has published its latest technical bulletin entitled, “Determining Insulation Values In Existing Homes.”

Technical bulletins are provided to ACCA members at no cost and cover a variety of topics related to system design, installation, and maintenance.
This Technical Bulletin provides guidance and strategies for determining insulation values for common types of thermal insulation. HVAC contractors can use the information in this bulletin to accurately calculate the heating and cooling loads for an existing home. Those loads can then be used to establish how home performance upgrades may affect HVAC equipment sizing requirements. Thus, HVAC contractors can use their Manual J8 load calculations as a home improvement performance evaluation tool.
"ACCA continues to develop resources like Technical Bulletins to ensure that our contractors have the most up-to-date information to provide their customers with the highest level of comfort through professional service," said Paul T. Stalknecht, ACCA president and CEO. "As the industry evolves and technology advances we will continue to provide insight into processes that help contractors be more successful."
ACCA technical bulletins may be downloaded by members at For more information, contact ACCA’s Donald Prather at

The ACCA is a non-profit association serving more than 60,000 professionals and 4,000 businesses in the HVACR community, who work together to promote professional contracting, energy efficiency, and healthy, comfortable indoor environments for all Americans. For more information, visit