Good day, All
I see that running cpvc in a return air plenum for the most part is alright with exception of running the line directly above a return air grille (no cpvc lines to be above the horizontal). It would appear then that running cpvc behind a return air grille on the vertical is ok...
What is your take on this installation example. No shut-offs on the FDC line, on the water supply side of the check valve, not within a specific zone... or does that base standpipe riser shut-off become a...
It appears the latest idea in my town is to take existing warehousing (where racking is already standing) and dividing the rack areas into smaller rooms complete with ceilings... basically a group of small rooms with racking inside all within a big warehouse.
The couple I have been asked to...
As per NFPA 13 2013, 22.4.1.2 "exception" one can design to Ordinary Hazard 2 for powder coating but does not get into the ductwork portion of the design . I would imaging the 30gpm/15 psi would still apply but seems to defeat the purpose of the exception.
Also - I see that some treat the...
Good Day, All!
I am inquiring about Owner's responsibility pre lease. As example: If an owner has a building with an ordinary hazard 2 system installed and leases a CRU in that building to a Tire Shop storing tires in the back to 20'-0" is it not the owner's responsibilty to ensure the system is...
nfpa 13 2016 8.12.5.2 #2 says no coverage is required underneath (the obstruction) if the obstruction is 24" or less in width and located horizontally from the sprinkler at least one foot. To some of us "horizontal" means at the same plane but others argue that it is one foot horizontal and at...
How close can a radiant tube heater be installed (above) a sprinkler line/main before it becomes troublesome to the sprinkler pipe and closest sprinklers and fittings (couplings and gaskets).
Hello, All
With the NFPA 13, 2016 (8.15.26) and tyco shops clarifying what can and cannot be done in regards to glazing protection is there any other option for glazing protection on a set of windows with horizontal mullions? The architect's up here in my land want to use Glazing protection to...
Hello All!
Have a project involving car wrap printers
Seems the ink involved is the big issue... and (in my world at least) info on the inks is minimal
anyone have some experience with these?
Thanks!
Hello, All
Have computer accessories to 20' in racks. Typical shop type environment so most are boxed and ready for the sales floor. Commodity? Is there enough plastic involved to consider it group A?
I was on a site today where the sprinkler piping was hung via (from pipe up) pipe hanger, ready rod, pipe hanger wrapped around structural member (top of joist). This just seems so wrong BUT of course when I brought it to the installers attention he asked to prove that it cannot be done that...
Does the NFPA 13 2013 section 11.2.3.2.6 "high temperature sprinklers" apply to Paint/spray booths and/or flammable spray areas? I ask as NFPA 33 / 13 says to use sprinkler temperatures as low as possible BUT a 500ft sq. decrease in calc area sure makes things nice.
I have a mansard type roof placed on a building - a pitched from soffit to peak type roof but only a certain distance in (versus a complete roof structure) and unfortunately has a plywood interior on steel joists thus combustible. By NFPA standards and NFSA research this does have to be...
As per NFPA I'm designing a paint booth to extra hazard group ii... now the question is: does NFPA say anything anywhere about the sprinkler having to be a minimum 11.2k? I'd like to use 8.0k in this specific project. Most designers will reference the 0.2 to 0.34 densities with 8.0 k and 0.34...
