This manual is intended for design professionals who want to specify energy-efficient roof systems

Updated in 2009, this manual is intended for design professionals who want to specify energy-efficient roof systems, as well as for those who need to meet the requirements of the recently updated ASHRAE Standard 90.1-2007, "Energy Efficient Design of New Buildings Except Low-Rise Residential." This manual is best used with The NRCA Roofing Manual: Membrane Roof Systems-2007 and the Moisture Control section of The NRCA Roofing and Waterproofing Manual, Fifth Edition.