Mark, CertainTeed tells me they don't do fire tests on the kraft-backed stuff.
Scott Office: (763) 425-1001 x 2 Cell: (612) 759-5556 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, June 30, 2015 7:47 AM To: [email protected] Subject: Re: Insulation and combustible concealed ceiling space Scott, You'll need to know the ratings on the batt insulation. It needs to have a flame spread below 25 among other things. Look at A.8.15.1.2.17 references "Batt insulation meeting noncombustible or limited-combustible criteria", to start. Mark at Aero 602 820-7894 Sent from my iPhone > On Jun 30, 2015, at 5:34 AM, "Scott A Futrell" <[email protected]> wrote: > > Has anyone ever had an issue with a combustible concealed space that has one > layer of kraft-faced batt insulation laying on the ceiling (kraft side up > toward the sky) and then the remainder filled full of blown-in, > non-combustible insulation and an AHJ saying the kraft-faced insulation had > to be removed? Or, conversely that the kraft-faced was acceptable. This is > fiberglass batt insulation, standard thickness for joists/studs with kraft > backing. > > I'd really like to hear arguments for 1) having to remove the kraft-faced and > why, and 2) leaving it in place and why. I want to leave it in place. > > Thanks! > > Scott Futrell > > > > _______________________________________________ > 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
