Well problem solved... Went to a descope meeting and found out we can install everything exposed and surface mounted. CPVC is obviously out since top run it exposed you need a smooth flat horizontal ceiling...
Before the meeting another person had recommended aquatherm On Monday, October 10, 2016, Mike Cabral <[email protected]> wrote: > REHAU Had a complete line of fittings for installation of PEX fire > sprinkler systems imbedded in concrete which is used in the UE. > > It was used in systems beyond 13D. Check with them might be able to work > something out with them. > > Mike C > > > > > Sent from Yahoo Mail for iPhone <https://yho.com/footer0> > > On Friday, October 7, 2016, 11:25 AM, rongreenman . <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > > Isn't PEX used as the piping in heated floors where you would have a large > change in temperature from winter (using it to halt the floor cum building, > and summer where you wouldn't? > > > On Fri, Oct 7, 2016 at 6:31 AM, Steve Leyton <[email protected]> > wrote: > >> I think an investigation of the potential for thermal expansion would be >> prudent. The applications I described topped with 3-8 feet of earth, so >> temperatures were stable year-round. But PEX is designed to expand and >> contract without loss of structural integrity, so it's well suited for >> embedment in concrete. >> >> >> Steve >> >> >> -------- Original message -------- >> From: Ben Young <[email protected]> >> Date: 10/7/16 6:27 AM (GMT-08:00) >> To: sprinklerforum@lists. firesprinkler.org >> Subject: Re: Monolithic domes >> >> I thought about PEX as well Steve, its no four letter word for me. At >> least with the CPVC we can comply with the pipe requirements from NFPA 13, >> which would require less 'selling' than PEX use. Although as Mark points >> out about thermal expansion, PEX does have a lower rate of I think about an >> inch per 100 feet. Because the concrete acts as a thermal sink and they >> are insulated on the outside, I think the temperatures inside are >> incredibly stable. The Wikipedia page for these things makes them sound >> incredibly attractive for almost any building type, but there are some >> drawbacks. >> >> >> I'm just really surprised at the complete and utter lack of information >> on sprinklering these except for the one I posted. >> >> >> Benjamin Young >> >> On Thu, Oct 6, 2016 at 10:41 PM, Steve Leyton <[email protected] >> > wrote: >> >>> Listed PEX A and I think the sprinklers were screwed right into the >>> branch fittings because we only needed 30 minutes per UL 1821. If you >>> really need the details, I have to look at my technical report and may not >>> be able to do that for a couple days as I'm taking a long weekend. >>> >>> Wine caves are a little different than overhead domes because we ran a >>> CPVC main down the corridors under the floor and branched off with 1" PEX >>> that wrapped halfway around the vault serving a single sprinkler. The CPVC >>> was directly buried and the floors were made of hand-laid stone on a sand >>> bed. >>> >>> But I think you could drop to the sprinklers with CPVC or even use PEX >>> because I'm not as worried about protecting piping that has a sprinkler >>> between it and the heat source as I might be concerned about a piping span >>> that's between sprinklers. >>> >>> Steve >>> >>> >>> -------- Original message -------- >>> From: AKS-Gmail-IMAP <[email protected]> >>> Date: 10/6/16 7:23 PM (GMT-08:00) >>> To: [email protected] kler.org >>> Subject: Re: Monolithic domes >>> >>> If I may ask, was that PEX A or B and how were the last bit of drop >>> piping handled where the sprinklers screwed in? >>> >>> Allan Seidel >>> St. Louis, MO >>> >>> >>> On Oct 6, 2016, at 3:32 PM, Steve Leyton <[email protected]> >>> wrote: >>> >>> It’s a dirty word on this Forum to some, but I would consider looking >>> into PEX tubing if you can get it to work hydraulically. The challenges >>> with PEX are smaller ID and temp/pressure rating. However, PEX can easily >>> be attached to the formwork for concrete or Gunnite and we have used it >>> with great success in wine caves out here on the Left Side. Aggregate >>> concrete has a fire resistance rating that can be extrapolated as about >>> 22.2 minutes per inch and I’ve done tech reports for two wine cave >>> applications where we obtained equivalency approval for this application. >>> >>> Steve Leyton >>> >>> >>> *From:* Sprinklerforum [mailto:sprinklerforum-bounces >>> @lists.firesprinkler.org] *On Behalf Of *Maurice Marvi >>> *Sent:* Thursday, October 06, 2016 12:58 PM >>> *To:* [email protected] prinkler.org >>> *Subject:* re: Monolithic domes >>> >>> Repairing buried CPVC branch lines sounds like fun. >>> Not. >>> >>> >>> Maurice Marvi >>> ------------------------------ >>> >>> *From*: "Ben Young" <[email protected]> >>> *Sent*: Thursday, October 06, 2016 3:18 PM >>> *To*: "[email protected] nkler.org" >>> <[email protected] >>> nkler.org> >>> *Subject*: Monolithic domes >>> >>> Does anyone have any information at all about putting sprinklers in a >>> concrete monolithic dome? >>> >>> I was able to find one article about it at the monolithic dome >>> institute's website here: >>> http://static.monolithic.com/c onstruction/sprinklers/index.h tml >>> <http://static.monolithic.com/construction/sprinklers/index.html> >>> Looks crazy, but also interesting. >>> >>> Benjamin Young >>> >>> ______________________________ _________________ >>> Sprinklerforum mailing list >>> [email protected] kler.org >>> http://lists.firesprinkler.org /listinfo.cgi/sprinklerforum- >>> firesprinkler.org >>> <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> >>> >>> >>> >>> ______________________________ _________________ >>> Sprinklerforum mailing list >>> [email protected] kler.org >>> http://lists.firesprinkler.org /listinfo.cgi/sprinklerforum- >>> firesprinkler.org >>> <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> >>> >>> >> >> ______________________________ _________________ >> Sprinklerforum mailing list >> Sprinklerforum@lists. firesprinkler.org >> http://lists.firesprinkler. org/listinfo.cgi/ >> sprinklerforum-firesprinkler. org >> <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> >> >> > > > -- > Ron Greenman > > 4110 Olson Dr., NW > Gig Harbor, WA 98335 > > [email protected] > > 253.576.9700 > > The Universe is monstrously indifferent to the presence of man. -Werner > Herzog, screenwriter, film director, author, actor and opera > director (1942-) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > -- Benjamin Young
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