EnergyWise Roof Calculator Online has been updated

ROSEMONT, Ill.  - EnergyWise Roof Calculator Online has been updated to include information from the 2004 and 2007 versions of ASHRAE 90.1, "Energy Standard for Buildings Except Low-Rise Residential Buildings."

EnergyWise Roof Calculator Online is available free of charge at NRCA's Web site, http://www.nrca.net/, and offers an interactive, graphic method of constructing virtual roof assemblies to evaluate thermal efficiency. This application denotes minimum thermal insulation requirements established by ASHRAE Standard 90.1. Users also can determine whether the placement of a vapor retarder is effective.

This user-friendly application prompts users to enter specific roof assembly information, such as roof area, climatic region, heating appliance type and cost, roof openings and roofing materials to be used. Users then can generate a report summarizing the proposed roof assembly design, estimated heating and cooling costs, and required minimum thermal requirements.

For more information about EnergyWise Roof Calculator Online, contact Joan P. Crowe, AIA, NRCA's director of technical services, at (800) 323-9545, ext. 7576 or jcrowe@nrca.net.