Smoke rated sliding transaction window

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Author Message Lynn Javoroski FCSI CCS LEEDŽ AP SCIP Affiliate Senior Member Username: lynn_javoroski Post Number: 1967 Registered: 07-2002 Posted on Friday, February 13, 2015 - 12:27 pm:    Any one encountered this before? (3'-6" by 3'-10" in a smoke rated wall). We're not finding anything. Richard Gonser AIA CSI CCCA SCIP Senior Member Username: rich_gonser Post Number: 95 Registered: 11-2008 Posted on Friday, February 13, 2015 - 04:10 pm:    Counter shutter S-rated on the wall face or inside the jamb, is the only solution I've seen. Lynn Javoroski FCSI CCS LEEDŽ AP SCIP Affiliate Senior Member Username: lynn_javoroski Post Number: 1968 Registered: 07-2002 Posted on Friday, February 13, 2015 - 04:12 pm:    Yeah, that's what we were thinking, too, but there's always hope that someone has invented a new mouse trap. Thanks! Richard Gonser AIA CSI CCCA SCIP Senior Member Username: rich_gonser Post Number: 96 Registered: 11-2008 Posted on Friday, February 13, 2015 - 04:32 pm:    I had a thought, a simple fire rated window rated for exterior use might just be able to pass the "S" rating. An example: http://www.fyre-tec.com/pages/fire_rated/slider/900_features.html Sheldon Wolfe Senior Member Username: sheldon_wolfe Post Number: 869 Registered: 01-2003 Posted on Monday, July 13, 2015 - 06:46 pm:    The UL Marking and Application Guide for Doors, Windows and Related Hardware says this (page 7): "Windows in smoke partitions must be sealed to resist the free passage of smoke or be automatic closing upon detection of smoke." It's possible there is an auto-closing transaction window, but thus far, responses to my inquiries have been negative. Steven Bruneel, AIA, CSI-CDT, LEED-AP, EDAC Senior Member Username: redseca2 Post Number: 501 Registered: 12-2006 Posted on Monday, July 13, 2015 - 08:41 pm:    The best solution unfortunately is a nice, easy slider window backed by a fire-rated coiling door on a local smoke detector or controlled by the fire alarm system. Our sliding transaction windows usually occur in healthcare settings where there is an increased focus on accessibility. By the time a window is fire-rated and then has some sort of auto-close function you can never meet the force requirement to manually open and close it. A collateral virtue of the coiling door is that it can provide security for sensitive areas (pharmacies).