John, Thank you for the input. Would love to see the pictures offline if you get a chance. [email protected]
Ron - In this case we are proposing a different building type with separation walls and a 13R system. Not only will it save the owner money but we are an investor on the project. The savings side of the cost benefit analysis is much greater for the 13R if the truss space was to be sprinklered. Clear benefits to the full 13 but wanting to know the true difference. Per John's email below looks like this can be done but isn't easy. Just didn't seem right to me. Thank you both as always. Rod at Rapid -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of rongreenman . Sent: Monday, March 24, 2014 5:00 PM To: [email protected] Subject: Re: truss filled with insulation And how is this your problem Rod? If you must write a letter saying in your expert opinion this won't work and sprinklers should be added. Give a contingency number for an attic dry if you're in the bidding phase. Unless you're an insulation contractor bidding that, as well as the sprinkler guy, and bidding that, it's not your problem. Let the architect, the GC, and the insulator sort it all out. I believe the "fill the void space with non-combustible insulation" concept was for smaller spaces like under platforms, small concealed spaces, etc., not whole building, peaked attic spaces. Of course it doesn't restrict the size, so I'm probably wrong. I'll let the Hugginses and Druckerses weigh in on intent. Smeagal Greenman On Mon, Mar 24, 2014 at 2:24 PM, John Drucker - Home < [email protected]> wrote: > Rod, > > I experienced this exact situation. In order to blow it in the > drywall has to be in place on the underside with installation holes > bored in the decking above. The holes (typically 2") have to be > properly placed and spaced and are left open after installation for > inspection where a stick is used to determine if there are any voids. > Where a void exists the stick will cause the insulation level to drop > requiring it to be topped off. It's a ton of work to avoid putting > sprinklers in a qualified concealed space. > > PS, If they ever ever open the ceiling, oh boy, like an hour glass it > pours out requiring reinstallation of semi rigid insulation such as > roxul or thermafiber. > > I have pics if you want to see, off list. > > > John Drucker, CET > Assistant Construction Official > Fire Protection Subcode Official > Building/Fire/Electrical Inspector > Borough of Red Bank > Red Bank, New Jersey > Email: [email protected] > Cell/Text: 732-904-6823 > > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Rod DiBona > Sent: Monday, March 24, 2014 4:59 PM > To: [email protected] > Subject: truss filled with insulation > > > > I have an apartment building where the architect took the area > increases for a full 13 system. They are utilizing a 16"open web truss > in between the floors. The mechanical is running hvac in the truss. > The sections show the space filled with insulation with an > accompanying note that states that it will be. My question is how is > this "completely filled with non - combustible insulation?" They are > planning on blowing in the insulation around all the duct etc that is > in the space but it just seems really hard to believe that it will > indeed be completely filled. I remember a while back Roland tried to > get a 2" gap on the top and I think that was a battle. I am picturing > the duct blocking insulation from getting in plenty of spots. > Maybe not? Any thougts? > > Rod at Rapid > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
