Hi,
I am working on the wood frame building with Flat roofs.
Open Web Wood trusses are the overhead structure, The roof Deck above is
insulated. There is going to be a suspended ACT ceiling system below. The
combustible interstitial space ranges from 4' to 5' high between roof deck
and finished ceiling. The floor in question is 4900 SF. Sprinklers listed
for interstitial spaces can't be used.
The Open web joists members are in vertical position, 2x6 top and bottom
cord with 2x4 braces, vertical and angled. The 18" tall joists do not have
big openings in them. (I have cuts sheets I can share with you). I would
like to think I can treat them as obstructed construction. That would allow
for heads installed 1"-6" below bottom of joist.
Your thoughts would help.
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638
<mailto:[email protected]> [email protected]
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