Running pipe under duct work using trapeze hangers.. to achieve required height above ceiling, we need to have pipe on top of trapeze hangers. I have seen this before but never have had to use this method. Is this allowed per NFPA? Thank you for your...
In Boston mass. Most high rises have the entrance to the elevator lobby’s glass which has closely spaced heads 4”-12” from glass and 6’ apart. The situation we are in has the lobby finished with a sheet rock ceiling and the tenants space open construction. See picture. They want just uprights in...
So I’m taking it as that’s a downward discharge diffuser. So from the edge of the vent on the diffuser how far would everyone keep a ordinary 155 head ?
In regards to a ceiling diffuser in Acoustical ceiling. Would that fall under downward discharge? I’m trying to understand if you can have a ordinary temp. 155 degree. 1 foot away? Basically in the center of the 2x2 tile next to the diffuser tile.
Unobstructed Beam and girder construction. Corrugated metal deck. Parking garage. There is duct that is over 4’ that will have coverage under it but is only 12” between the top of duct to the deck. Is there a minimum distance from deck to top of obstruction that you don’t have to put heads above...
hi everyone,
Parking garage, ordinary hazard, ssu heads.130 sqft max protection area and max spacing 15'... heads are spaced 10x13 on jobsite, does that mean max spacing off wall is 6'6"? or does it stay 7'6" because because you can max them out at 15'.
