Steve Orlowski of WDMA addresses the WDMA-Northeast Winter Meeting in Philadelphia.

There have been some important updates to industry codes and standards during the past year. Steve Orlowski, the senior director of standards and technical activities with the Window and Door Manufacturers Association (WDMA), gave a presentation on what’s been going on in the codes arena during the recent WDMA-Northeast Winter Meeting in Philadelphia.

Orlowski noted that the North American Fenestration Standard (NAFS) has been updated for 2017, and those changes have been published. He said because of that, windows and sliding doors must be tested and labeled in accordance with NAFS 2017 in the 2018 I-Codes from the International  Code Council (ICC).

He said the changes to NAFS were mostly incremental, though two new products are covered: parallel opening windows and folding door systems.

For windows, Orlowski said NAFS clarifies that window opening control device requirements must conform with the applicable section of ASTM F2090, and guards and fall protection screens must conform to ASTM F2006. Among other the proposed changes were simplified air infiltration requirements to meet U.S. and Canadian model codes and expanded options to exclude door hardware during water testing of sliding, folding and dual-action doors. There are also new exceptions for emergency escape and rescue openings in basements.

Another change for replacement windows will use the area-weighted average for U-factor and solar heat gain coefficient. Additionally, permanent labeling of impact-resistant glazing is now required. It must be etched or embossed on the glass.

Orlowski said the International Residential Code has added the the Energy Rating Index Path to create a fourth compliance path for energy efficiency.

“We’re finally starting to see that there’s really not a whole that can be done for each individual product,” he said. “So now they’re starting to look at whole systems. This path will allow builder or designer to use a certification path.”


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