Or sometimes you see old things, not used anymore, for the first time. I have been at this for 37 years and don't recall seeing anything like that. I personally owned a 1952 Central Fire Truck with all the devices, and nope that was not one of the accessories.
PW located in the heart of...
As indicated the percentages are provided by the manufacturer and I have used the same foam manufacturer on two different projects, but both were flammable liquids, one in a 3% and the other in a 6% solution. One good reason for using one over another is the %-age that requires the least amount...
I appreciate the replies. I noted the width being the determining factor by some, and wish to point out that I did a Sysco project a few years ago and in the freezer the air diffusers were 32" x 48" and below the bar joists. Their insurance man and Sysco's construction PM both said that in...
Per the referenced verbiage from the NFPA standard, where there is NO possibility for storage. I have seen all kinds of things stored on lay-in ceiling grids/ACT, and even more and worse above hard ceilings. NFPA standards are based on anticipation of a fully sprinklered building (fully meaning...
My experience is conditioned building (kept cool) the pipe is high in the peak, is it getting any reflected thermal energy that would heat the sprinkler pipe & water or is it leaving an attic where it is hot compared to the conditioned space? That could cause condensation. I have also found pipe...
Typically there is also a requirement from the building and fire codes to provide fire sprinklers above the finished area, when they are not fully demised. They look at it from a different perspective, sprinkler contractors often say we are protecting the floor area but if the area above the...
Reference thread184-371238. To the posters and interested parties on ESFR heads and light fixtures. I have gone through an abbreviated review on the width of fixtures and as I am travelling I don't have my standards at hand, this is a question. The width was stated a number of times as a maximum...
