7.2.2 Sprinklers. The following types of
sprinklers and arrangements shall be permitted for dry pipe systems:
(1) Upright sprinklers
(2)* Listed dry sprinklers
(3) Pendent sprinklers and sidewall
sprinklers installed on return bends, where the
sprinklers, return bend, and branch line piping
are in an area maintained at or above 40°F (4°C)
(4) Horizontal sidewall sprinklers,
installed so that water is not trapped
Now, what could be so confusing to THIS AHJ?
At 05:58 PM 7/27/2007, you wrote:
We have an AHJ telling us that we can not use a dry system to feed an
unheated attic and the heated space below the ceiling. He is insisting that
we use a wet system for the lower area with insulation on top of the piping.
We have done this many times in the past but on this project it is very
difficult to accomplish this due to the construction.
I am having a hard time refuting him with concrete proof that there is
nothing wrong with using the dry system with dry pendents.
Thanks for any input from the forum.
Greg
Living Water Fire Protection, LLC
1160 McKenzie Road
Cantonment, FL 32533
850-937-1850
Fax: 850-937-1852
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