Extreme Measures Planmine™ Help Desk
About Us
Sign In / Up

Extreme Measures

This help desk is a free resource intended for discussion purposes only. Neither BOMA, its chapters, affiliates, or Extreme Measures Inc.® are responsible for the information, comments or opinions expressed herein. For complete information, refer to the official publications of the standards themselves.

FAQ & Read-Me Articles
What are as-built drawings / models?
What is CAD and BIM?
How do I resolve an area dispute?
Where can I get measurement standards publications?
BOMA Office Overview
BOMA Industrial Overview
BOMA Retail Overview
BOMA Multi-Unit Residential Overview
BOMA Gross Areas Overview
BOMA Mixed-Use Overview
IPMS for Office Overview
Alternative Methodologies
Glossary of Industry Terms

Egress Corridor at Exit Stair

J Brunson
CTC, Inc
March 26, 2010

Hello. I see in the 2010 rentable area standard that a fire-rated egress corridor leading from an interior exit stair to the street may be counted as Building Service Area. If the interior exit stair (in a building tower, say) is connected by a similar corridor to another exit stair closer to the perimeter (say, at the Ground and First Floors), does this egress corridor get counted as Building Service? Or is it Major Vertical Penetration? Thanks!

Adam Fingret
Extreme Measures Inc.
March 27, 2010

Page 30, Section 3.4 of the Standard indicates that "discharge corridors" are indeed Building Service Area. It is reasonable that a corridor of similar function which connects two (or more) egress stairs should also be treated as Building Service Area. To further strengthen this position, it is worth noting that the corridor itself does not meet the criteria to be considered a Major Vertical Penetration.

Your Comments ...

Please allow up to 24 hours for your question to appear after it is reviewed.