AAMA Provides Development Update of NAFS-2011 DocumentJune 8, 2011
During AAMA’s National Summer Conference in Minneapolis, MN the North American Fenestration Standard (NAFS) Committee met on Wednesday, June 8 to review the outcome of the 4th ballot of the 2011 draft of AAMA/WDMA/CSA 101/I.S.2/A440 NAFS-North American Standard/Specification for windows, doors, and skylights for the next edition which will be published later this year. Co-chairs Ray Garries (JELD-WEN) and Steve Fronek (Apogee) directed the overall meeting.
Prior to the summer conference, the Joint Document Management Group (JDMG), which consists of a balanced roster of representatives from AAMA, WDMA and CSA, held three conference calls on April 1, April 5 and April 20 to discuss the fourth ballot of NAFS that was sent to the AAMA membership on December 31, 2010. All comments submitted by AAMA members were reviewed and resolved by the JDMG members during those conference calls. The comments identified as persuasive and substantive are being addressed in the fifth ballot, which was scheduled to be sent out on June 1.
AAMA’s Technical Services Manager, Ken Brenden, reported on the JDMG’s activities since the 2011 Annual Conference.
Some impending changes include multiple locations where ASCE 7-10 is referenced in documents, noting that positive or negative design pressure (DP) refers to “allowable stress design,” as opposed to strength design, as previously referenced. The 18.104.22.168 Uniform Load Structural test will now be conducted in accordance with ASTM E330, Procedure A. The positive load duration shall be 60 seconds for TDDs, roof windows, and unit skylights (long duration) and 10 seconds (short duration) for all other products. The negative load duration for all products shall be 10 seconds.
Hardware and general topics were introduced, stating that operable products shall be equipped with operators, counterbalances, spring detents or holding devices, which should be permitted to be part of the latching device, and capable of holding the operable sash at the full extension of the hardware in the open and intermediate positions, as specified by the manufacturer.
Following the Summer Conference presentation, a subsequent conference call has been slated for late July or early August to review the comments received from the fifth ballot from all three associations and to review the outcome of CSA editorial review. The JDMG hopes to have the NAFS 2011 document published and available for purchase by December.
For further information, please go to the Members Only Section of AAMA’s website to access all JDMG minutes, agendas and 101-2011 development files. NAFS Updates are also provided in each edition of AAMA’s monthly e-News.