Interpretation #7167

Original Request

Code Version: 2010
Code: BUILDING
Code Description: Building
Chapter: 9
Section: 905.4
Topic: Horizontal Exit

Question

1. Is it the intent that in the Exception to sub-paragraph 2 that the term �floor areas adjacent to a horizontal exit� refer to the areas on the side of the horizontal exit where all spaces can be reached with a 100� hose and 30� hose stream from an exit stairway hose connection. 2. Is it the intent that the Exception apply if all spaces in a floor area can be reached by a hose connection adjacent to the other side of the of a horizontal exit? 3. Is it the intent that the distance between the exit stairway hose connection and the stairway door be subtracted from the 100� of hose allowed in the Exception?

Answer Published 05/24/2013 at 12:13 PM

[1] No. The provision applies solely to floor areas adjacent
to the horizontal exit. I don't really understand what the
term "all" in the question means. Adjacent is defined as
"lying near, close, or contiguous; adjoining; neighboring". A
space on the same floor as the horizontal exit may not be
adjacent to the horizontal exit. [2] No. See answer to one. We
are not talking about all areas on the floor, but floor areas
adjacent to the horizontal exit. [3] No. You have 100 feet of
hose from the connection and the 30 feet allowed for the hose
stream to contend with. Item 1 of the Section requires the
hose connection to be located at an intermediate floor level
landing between floors.

Commentary

NOTE: additional hose connections may be required under the provisions of sub paragraph 6 of the Section.