I had my designer send the guy an email stating that they were U.L. listed for use in lay in ceiling grids and that uplift was part of the testing. She also copied excerpts from NFPA 13, 2007 (the edition currently in use in PA) 9.2.1.3.3.3 an A9.2.1.3.3.3. He emailed her back saying OK he just wanted to be sure someone had addressed the issue.
Richard Mote Design Manager [http://www.rowesprinkler.com/emailsig/Email_Sig_Logo.jpg] W: 877.324.ROWE • F: 570.837.6335 PO Box 407 • 7993 US Route 522, Suite 1 • Middleburg, PA 17842 505 A Cornerstone Court • Hillsborough, NC 27278 RoweSprinkler.com • [email protected] ________________________________ From: Sprinklerforum [[email protected]] On Behalf Of MFP Design, LLC [[email protected]] Sent: Wednesday, May 30, 2018 1:50 PM To: [email protected] Subject: RE: Ceiling Grids and Flex Drops What was the final resolution?? [cid:[email protected]] Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:[email protected]<mailto:email:[email protected]> http://www.mfpdesign.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mfpdesign.com%2F&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=HJ8OA4xyeHAoxXNz5mu%2FYfycgtd5nsFrrpvzulZiNkQ%3D&reserved=0> https://www.facebook.com/pages/MFP-Design-LLC/92218417692<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.facebook.com%2Fpages%2FMFP-Design-LLC%2F92218417692&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=H%2BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk%3D&reserved=0> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> LinkedIn: https://www.linkedin.com/in/travismack<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linkedin.com%2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=tT5E7LsZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <[email protected]> On Behalf Of Richard Mote Sent: Wednesday, May 30, 2018 12:46 PM To: [email protected] Subject: Re: Ceiling Grids and Flex Drops Thanks everyone for the feedback. I think we have the problem taken care of. -----Original Message----- From: bcasterline <[email protected]<mailto:[email protected]>> To: sprinklerforum <[email protected]<mailto:[email protected]>> Sent: Wed, May 30, 2018 2:05 pm Subject: Re: Ceiling Grids and Flex Drops The last problem I had like this Richard was in Reno, 1979. A Corp of Engineers guy told me I couldn't use toggles in precast hollow core concrete panels because it wasn't metal lath and plaster. Since then though it seems like all the AHJs i deal with get smarter every year. Brad Quoting Richard Mote <[email protected]<mailto:[email protected]>>: > I have a AHJ that is questioning the use of Flex Drops especially > the Victaulic ones. He says that they are so flexible that when a > sprinkler goes off the jet effect is going to lift the sprinkler up > through the ceiling. I told him that the drops are mechanically > attached to the ceiling grid and in order to lift up they would have > to lift the entire weight of the ceiling grid, ceiling tiles, the > lights and HVAC diffusers. His answer prove, it either by letter > from the manufacturer or from someone a lot higher up the food chain > than either he or I am. Or something specific in NFPA 13 that says > he is wrong. > > Richard Mote > Design Manager > [http://www.rowesprinkler.com/emailsig/Email_Sig_Logo.jpg] > W: 877.324.ROWE * F: 570.837.6335 > PO Box 407 * 7993 US Route 522, Suite 1 * Middleburg, PA 17842 > 505 A Cornerstone Court * Hillsborough, NC 27278 > RoweSprinkler.com * > [email protected]<mailto:[email protected]> _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[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
