# Smoke rated sliding transaction window

**URL:** <https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788>\
**Category:** Archive - Product Discussions #6\
**Created:** [February 13, 2015, 5:27pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788 "2015-02-13T17:27:42Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![lynn\_javoroski](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/lynn_javoroski/32/188_2.png) [@lynn\_javoroski](https://forum.4specs.com/u/lynn_javoroski)\
**Post date:** [February 13, 2015, 5:27pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/1 "2015-02-13T17:27:42Z")

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Any one encountered this before? (3’-6" by 3’-10" in a smoke rated wall).

We’re not finding anything.

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**Author:** ![rich\_gonser](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@rich\_gonser](https://forum.4specs.com/u/rich_gonser)\
**Post date:** [February 13, 2015, 9:10pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/2 "2015-02-13T21:10:54Z")

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Counter shutter S-rated on the wall face or inside the jamb, is the only solution I’ve seen.

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**Author:** ![lynn\_javoroski](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/lynn_javoroski/32/188_2.png) [@lynn\_javoroski](https://forum.4specs.com/u/lynn_javoroski)\
**Post date:** [February 13, 2015, 9:12pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/3 "2015-02-13T21:12:42Z")

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Yeah, that’s what we were thinking, too, but there’s always hope that someone has invented a new mouse trap.

Thanks!

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<div class="post-metadata">

**Author:** ![rich\_gonser](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@rich\_gonser](https://forum.4specs.com/u/rich_gonser)\
**Post date:** [February 13, 2015, 9:32pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/4 "2015-02-13T21:32:22Z")

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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](http://www.fyre-tec.com/pages/fire_rated/slider/900_features.html)

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**Author:** ![sheldon\_wolfe](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/sheldon_wolfe/32/197_2.png) [@sheldon\_wolfe](https://forum.4specs.com/u/sheldon_wolfe)\
**Post date:** [July 13, 2015, 10:46pm UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/5 "2015-07-13T22:46:36Z")

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The [UL Marking and Application Guide for Doors, Windows and Related Hardware](http://industries.ul.com/wp-content/uploads/sites/2/2014/02/DoorWindowAG.pdf) 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.

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**Author:** ![redseca2](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/redseca2/32/50_2.png) [@redseca2](https://forum.4specs.com/u/redseca2)\
**Post date:** [July 14, 2015, 12:41am UTC](https://forum.4specs.com/t/smoke-rated-sliding-transaction-window/2788/6 "2015-07-14T00:41:30Z")

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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).