Glazing Industry Groups Win Their Appeal of ASHRAE 90.1-2010

摘要

The glazing industry successfully overturned new, "unnecessarily restrictive" glazing provisions from taking effect this month as a part of ASHRAE 90.1-2010 s prescriptive path for code compliance (see November 2009 USGlass, page 14, for related article). In a joint statement issued by the Glass Association of North America (GANA), the Aluminum Extruders Council (AEC), the Insulating Glass Manufacturers Alliance (IGMA), AGC Flat Glass North America Inc., Guardian Industries Corp. and Pilkmgton North America Inc., the group states that an ASHRAE appeals panel reversed a deci- ( sion by ASHRAE's Standing Standard Project Committee 90.1 to reduce the amount of glass permissible in the enve-lope of commercial buildings using the prescriptive path by a full 25 percent- from a maximum window-to-wall ratio of 40 percent to a maximum of 30 percent. It also reversed the proposed inclusion of more restrictive U-factors and solar heat gain coefficient (SHGC) values and the addition of a new minimum for VT/SI ICC (of 1.1) in ASHRAE 90.1 s prescriptive path.