High-performance building envelopes are rewriting the playbook for HVAC contractors — as buildings are getting more airtight and insulation more robust, loads drop and demand curves flatten, meaning ...

Until recently, it has been lighting, mechanical, and control system upgrades which have received the most attention in the green building movement. At long last, the industry is now recognizing ...

The ASHRAE/IES energy standard would have multiple compliance options to ensure verification of delivered building envelope performance under a new proposal. “Uncontrolled air leakage has long been an ...