You stated CPVC is not permitted in concealed combustible spaces
requiring sprinklers. So, by filling with non-combustible insulation,
you now have a concealed space that does not require sprinklers.
Therefore, CVPC would be permitted.
That is at least how I have always found it to be.
Travis Mack, SET
MFP Design, LLC
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On 9/13/2016 2:23 PM, Zachary Siegrist wrote:
The blazemaster technical handbook states that cpvc pipe and fittings
are not approved for installation in combustible concealed specs
requiring sprinklers, as referenced in nfpa 13 unless protected by
sprinklers specifically listed for this application. Further on down,
the handbook talks about use of a CC1 and CC2 combustible concealed
space sprinkker.
We all know that concealed spaces of combustible construction are
required to be protected by sprinklers unless an exception is met,
which there are plenty.
My question is this: the use of non combustible insulation shall not
require sprinkler protection per 8.15.1.2.7. However, if this
exception is used, is the use of cpvc pipe still permitted since we
are using an exception in 13 that omits the use of the special
sprinklers called for in the combustible concealed space section of
the technical handbook?
Zach
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