Is there a compelling reason why you want to use CPVC instead of steel going through the OH2 area? Other than gluing is easier than screwing? Is the space above the 3 hr ceiling combustible?
At 05:48 PM 5/30/2010, you wrote: >Another question for anyone like me working this weekend. >I have a riser from the residential second floor passing through the OH2 >retail first floor. >It has a slight offset before passing down into the basement. >I'm using CPVC for the residential second floor and would normally >transition to steel but I'm wondering if I could use CPVC for the riser >through the first floor and then transition to steel before passing into the >basement. I don't think I can but it's above a 3 hr. clg. for a 10" offset >and then in a chase with the plumbers plastic water and sewer pipe. >I need a life. >TD > >Tyco TY-FRBs are listed for OH and I'm sure the others have >comparable products. Given it is retail, my guess is that there could >be products outside under the porch during good weather (like >today). I would continue OH on the porch as well. > > >At 08:56 AM 5/26/2010, you wrote: > >Campers: > > > >Following up my query from 2 weeks ago.. > > > >I'm just looking for clarification and information on a couple of things. > > > >I have to sprinkler a mixed use buildings first floor retail shops with > >sidewalls from a soffited main. > > > >Retail spaces are only 19' deep and I'll have sidewalls front and back. > > > >What are you guys using for OH listed sidewalls? > > > > > > > >The same front main will also have to serve dry sidewall heads protecting a > >farmers porch that exterior stairs lead down into. > > > >The porch also extends over both retail spaces (70'), 6' wide on all three > >sides. Front retail entries (2) and stairs at each end. > > > >The ceiling of the porch has just over 6" clear against the building but >the > >builder is filling the entire combustible space. > > > >Do I have to use OH design for the porch heads? > > > > > > > >Thanks, > > > >TD > > > >Go Red Sox! > > > >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
