HPAC Magazine

ASHRAE and ICC Issue 2018 IGCC User’s Manual

April 6, 2021 | By Logan Caswell

Key information in the International Green Construction Code includes sample calculations, forms to demonstrate compliance and references to helpful resources.

The American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) and the International Code Council (ICC) have announced the much anticipated release of the 2018 International Green Construction Code (IGCC) User’s Manual.

The manual was created to provide an understanding of the principles on which the IGCC is based, including the requirements of the code, and how each given requirements are structured. Key information is provided such as sample calculations, forms to demonstrate compliance and references to helpful resources.

“ASHRAE remains committed to providing sustainability strategies to improve indoor air quality and building performance,” said 2020-21 ASHRAE President Charles E. Gulledge III, P.E. “The IGCC User’s Manual offers a clear roadmap to the specific requirements of the 2018 IgCC with provisions that promote sustainable construction in an integrated fashion.”

“As the demand for green building design, construction and operational techniques continues to grow, the IGCC remains one of the many strong solutions that help communities establish sustainable, resilient, high-performance buildings,” said Code Council Executive Vice President Mark Johnson. “The new IGCC User’s Manual provides resources that aid the career development of building safety professionals, which is key to our efforts to welcome the next generation of industry leaders and lead the way to the sustainable and resilient building.”

The goal of the user’s manual is intended to support building professionals, including architects, engineers, contractors and other building professionals applying the 2018 IGCC and is also suitable for use in a variety of educational programs. Readers of the publication will find corresponding chapters throughout the 2018 IGCC.

This marks the first fully integrated edition of the IGCC to be developed cooperatively by ICC and ASHRAE.




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