A companion commentary publication to the NAHB’s National Green Building Standard is now available for purchase.

Available in electronic and print versions, it includes compliance details, efficiency requirements and administrative information.

“To date, nearly 32,000 homes and residential lots have been certified to the NGBS by Home Innovation Research Labs, and that number continues to grow,” said National Association of Home Builders Chairman Kevin Kelly, a home builder and developer from Wilmington, Del. “This new companion publication makes the process of building to the standard even easier, by giving building professionals an in-depth look at the different components, and the reasoning behind these provisions.”

Ordering information is available at www. BuilderBooks.com or by calling (800) 223-2665.