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 <cabralm...@rocketmail.com> 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 . <rongreen...@gmail.com
> <javascript:_e(%7B%7D,'cvml','rongreen...@gmail.com');>> 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 <st...@protectiondesign.com>
> 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 <derblitzkrie...@gmail.com>
>> 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 <st...@protectiondesign.com
>> > 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 <aksei...@gmail.com>
>>> Date: 10/6/16 7:23 PM (GMT-08:00)
>>> To: sprinklerforum@lists.firesprin 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 <st...@protectiondesign.com>
>>> 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:* sprinklerforum@lists.fires prinkler.org
>>> *Subject:* re: Monolithic domes
>>>
>>> Repairing buried CPVC branch lines sounds like fun.
>>> Not.
>>>
>>>
>>> Maurice Marvi
>>> ------------------------------
>>>
>>> *From*: "Ben Young" <derblitzkrie...@gmail.com>
>>> *Sent*: Thursday, October 06, 2016 3:18 PM
>>> *To*: "sprinklerforum@lists.firespri nkler.org" 
>>> <sprinklerforum@lists.firespri
>>> 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
>>>
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>>>
>>>
>>>
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>>>
>>>
>>
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>>
>
>
> --
> Ron Greenman
>
> 4110 Olson Dr., NW
> Gig Harbor, WA 98335
>
> rongreen...@gmail.com
>
> 253.576.9700
>
> The Universe is monstrously indifferent to the presence of man. -Werner
> Herzog, screenwriter, film director, author, actor and opera
> director (1942-)
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-- 

Benjamin Young
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