RE: High Density Art Storage

2007-07-28 Thread Eric Shelton
Thanks, these references are right on target. However, they are somewhat vague, presumably because as NFPA 909, A.16.4.8 says, Compact storage systems present a severe fire challenge that requires engineering solutions specifically designed for each installation. Todd, there aren't any catwalks

RE: Dry System with Pendents

2007-07-28 Thread Greg McGahan
His reasoning is flawed - He says that the dry system will result in a delay in water getting to the fire. True enough, but that is why the increased remote area usually. The engineer specified that the any method of calcs allowed in NFPA 13 would be acceptable; therefore the largest room rule

RE: High Density Art Storage

2007-07-28 Thread Todd Williams - work
Eric, A couple more questions worth asking. What is the value of the art? Are we talking Picasso or Elvis on black velvet? Also, are there a lot of water colors? Sprinklers don't do water colors any favors, nor does is do any for most paintings. The water damage issue could be significant.

RE: Dry System with Pendents

2007-07-28 Thread Eric Shelton
I went down his road once, thinking that if an area wasn't subject to freezing then a dry system can't be used. After all, that's just the reverse of the requirement that if an area IS subject to freezing then a dry system MUST be used. There are some who specify this, but after doing much

Re: Dry System with Pendents

2007-07-28 Thread Ron Greenman
I would bet money that he is confusing Quick Response with water delivery time and as others have pointed out the latter is compensated for in the increased design area when using area density. This I interpret to be a property protection issue. As to life safety 13R/2002 5.3.1 states: A wet pipe