And this seems to be the difference between the Classification of the
Occupancy/Commodity (hard part performed by EOR) and figuring out what
sprinkler and spacing to use in a particular compartment with clouds, soffits,
skylights, beams, joists, hidden spaces, piping configuration, hanger
A multilevel industrial facility is using extensive open grate flooring
systems. Is it feasible to use a density/area calculation when the fire plume
does not stop at the open grate? Does a building have to have a "ceiling"
(2016 3.3.5) to perform a hydraulic calculation? Just questioning
To address the initial concern, 2015 IRC M1601.4.4 regulates support for ducts
and refers to two SMACNA standards for fibrous glass and metal ducts. For
reference, the 2012 edition requires nonmetallic ducts to be hung in accordance
with manufacturers’ instructions. I’d bet neither recommends
Some of the EOR brainstorms we see on this forum are pretty farfetched. This
one seems to be based on precedent in current codes and standards.
The EOR appears to have created a performance objective which says the heat
absorption rate of the water curtain exceeds the likely rate of heat flow
