July 2006
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Web exclusives

The "Web exclusive" section offers additional editorial and images related to articles available in Professional Roofing's print version and on its website. This section provides a valuable supplement to information in this issue. Web-exclusive information is updated monthly and is available only online.

Link to the Department of Energy's list of appropriate energy calculators and the IRS' Notice 2006-52.

Building codes and design guidelines

NRCA NRCA