| Author |
Message |
John Bunzick, CCS, CCCA
Senior Member
Username: bunzick
Post Number: 783
Registered: 03-2002
| | Posted on Tuesday, August 28, 2007 - 03:48 pm: |    |
I'm wondering if it is typical practice in firms to indicate doors requiring temperature rise ratings by a notation in the door schedule, or merely by a description in the spec. It seems to me they must be identified on the schedule to preclude missing them on horizontal exits. What are others doing? |
Ronald L. Geren, RA, CSI, CCS, CCCA, SCIP
Senior Member
Username: specman
Post Number: 506
Registered: 03-2003
| | Posted on Tuesday, August 28, 2007 - 04:22 pm: | |
John:
From what I understand, the Massachusetts State Building Code is based on the 2003 IBC. The IBC only requires temperature rise doors on vertical exit enclosures and exit passageways; horizontal exits are not required to have that type of door.
I typically cover it in the specs, mainly because I don't prepare the door schedule; and the door schedules that I've seen do not address it.
I should also point out that there is an exception to the temperature rise provision. If the building is sprinklered throughout by an NFPA 13 or 13R system, then the provision is not required. |
John Bunzick, CCS, CCCA
Senior Member
Username: bunzick
Post Number: 784
Registered: 03-2002
| | Posted on Tuesday, August 28, 2007 - 04:27 pm: | |
Mass has not yet adopted IBC, though we've been talking about it for about seven years. It's still at least six months away. Our current code does require temp rise rated doors in horizontal exits, and who knows, that provision may be one that we keep when the new code finally comes. But glad to see this is simpler with IBC. |
Ronald L. Geren, RA, CSI, CCS, CCCA, SCIP
Senior Member
Username: specman
Post Number: 507
Registered: 03-2003
| | Posted on Tuesday, August 28, 2007 - 05:28 pm: | |
I'm not familiar with MA interpretations as you are, but my reading of the MA State Building Code is that only doors for "exit enclosures" are required to have the temperature rise requirement.
However, this is were there's a gap in the MA State Building Code--there is no definition of what an exit enclosure is. Typically, these include exit stairways and passageways because they're "enclosed." Horizontal exits don't enclose a space, they divide a space. So, if I was using this code based on typical code usage, a horizontal exit would not be considered an "exit enclosure."
But, to get to your question, the spec can cover it, but the exit components would need to be clearly defined on the drawings so the contractor can apply the spec requirement to the correct doors. |
Joseph Berchenko (Unregistered Guest)
Unregistered guest
| | Posted on Wednesday, August 29, 2007 - 02:16 pm: | |
The Door Schedule should indicate the location of temperature-rise doors. |
Wayne Yancey
Senior Member
Username: wyancey
Post Number: 380
Registered: 05-2005
| | Posted on Thursday, August 30, 2007 - 12:02 pm: | |
I include this information in the door schedule as part of the label rating. I include explanatory notes with my schedules. |
Phil Kabza
Senior Member
Username: phil_kabza
Post Number: 281
Registered: 12-2002
| | Posted on Tuesday, September 04, 2007 - 10:23 pm: | |
I don't encounter institutional projects that are not fully sprinklered and therefore exempt from the temperature rise door requirements. Apparently the PAs are avoiding circumstances that require TRDs as part of horizontal exits that are not exempt. |
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