Gentlemen,
NFPA 13 par. 23.4.4.6.3 states:
The requirements of 23.4.4.6.1.1 to include every
sprinkler in the design area shall not apply where spray sprin-
klers or CMSA sprinklers are provided above and below ob-
structions such as wide ducts or tables.
Question:
Does the same apply to sprinklers underneath mezzanines?
And how about sprinklers under a floor with a large opening to the
(sprinklered) floor above?
And how when the large opening is filled with obstructions (pipe
rack) with additional sprinklers underneath the obstructions?
Looking forward to your insight....
Best regards,
Frans Stoop
TOS architecture & fire protection
Netherlands <[email protected]>
Tel. +31-24-324 0112
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