On Thu, Feb 18, 2016 at 4:47 PM, Travis Mack, SET <[email protected]> wrote:
> I have seen mains routed over the roof in several instances. Some were > industrial, some were freezer storage buildings. We just always had > structural engineer verify everything. > > Travis Mack, SET > MFP Design, LLC > 2508 E Lodgepole Drive > Gilbert, AZ 85298 > 480-505-9271 > fax: 866-430-6107 > email:[email protected] > > http://www.mfpdesign.com > https://www.facebook.com/pages/MFP-Design-LLC/92218417692 > Send large files to us via: https://www.hightail.com/u/MFPDesign > > On 2/18/2016 5:46 PM, Ed Vining wrote: > >> Frans, in the 1970's or 80's an unprotected fire protection main was >> installed on the roof of the C&H Sugar Company at Crockett California. I >> don't remember the size, but believe it was at least eight inch. The >> lowest temperature I can find at that location is 28 degrees F. As far as >> I know the pipe has never frozen. You could question them at: >> >> - >> *830 Loring Ave, Crockett, CA 94525* >> - Phone number (510) 787-2121 >> >> >> >> On Thu, Feb 18, 2016 at 3:45 PM, Frans Stoop <[email protected]> wrote: >> >> Dear colleagues, >>> >>> A client has an existing alarm valve room in an open air courtyard of his >>> complex building, fully enclosed by parts of the building. >>> It may freeze in this coutry, sometimes upto -20 deg C (-4 deg F). >>> We are looking for a way to connect the valve room to the underground >>> fire >>> water mains outside the perimeter of the building by way of a new DN300 >>> (12 >>> inch) header. >>> Passing through the building or its souterrain is very difficult or might >>> even be impossible. >>> (All rooms, including the souterrain are in full use and have access >>> limitations.) >>> Drilling a tunnel underneath the souterrain has been rejected because of >>> possible damage to the foundation and all the existing pipes and cables >>> that might lay under the building. >>> >>> Client has come up with a proposal to route this 12 inch header over the >>> roof, meaning 14 m up along the outside wall, 17 m horizontal over the >>> roof >>> and 14 m down again into the courtyard. >>> That above ground loop would be made in hot-dipped galvanized steel, >>> insulated and heat-traced. >>> >>> What is your opinion about that solution? >>> And why? >>> Has this been done often? >>> Looking forward to your appreciated views. >>> >>> Met vriendelijke groet/Kind regards, >>> >>> Frans Stoop >>> Riskonet B.V. >>> Singel 540, 1017AZ, Amsterdam >>> T +31 6542 37 642 >>> www.riskonet.com >>> [email protected] >>> >>> _______________________________________________ >>> 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 > -- Ed Vining 4819 John Muir Rd Martinez CA 94553 925-228-8792 Cell 925-787-0465 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
