Further to David's comment, "non-combustible or limited combustible" materials (exterior siding for example) tested in the horizontal plane (laying down) have shown in both fire and testing conditions to be extremely combustible in the vertical plane (when they are installed on the side of the building)!
Scott (763) 425-1001 Office (612) 759-5556 Cell -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David de Vries/Firetech Sent: Friday, January 12, 2007 9:48 AM To: [email protected] Subject: RE: Wood Coating Todd: That appears to be UL, not ULC. Whether this product, or any other product listed in that category would turn a ceiling or concealed space that is otherwise combustible into a non-combustible or limited combustible ceiling or space is problematic. The test applied by UL is the one for Surface Burning Characteristics, UL 723. It does not necessarily correlate to the flammability of the material. For example, gypsum board with typical paper face might have a flame spread index of 10 or 15, just like a wood product treated with one of these fire retardants. The difference is that the core material of the gyp board is non-combustible, whereas the wood product is combustible. Once the surface protection is gone, you're back to a combustible concealed space, or combustible ceiling. -- David de Vries, P.E., CSP Firetech Engineering Incorporated [EMAIL PROTECTED] -------------- Original message -------------- From: Todd Williams - work <[EMAIL PROTECTED]> > Bill, > > Is this UL or UL Canada listed? > > At 09:23 AM 1/12/2007, you wrote: > >This product has a UL listing. I'm not endorsing one way or the other but I > >think the intent of NFPA 13 would be to accept products like this when > >applied properly as Roland indicates. > > > >http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html ?name > >=BMQX.R19565&ccnshorttitle=Coatings,+Fire+Retardant&objid=1078153113&cf gid=1 > >073741824&version=versionless&parent_id=1073984654&sequence=1 > > > >Bill Brooks > >Pittsburgh, PA > > > >-----Original Message----- > >From: [EMAIL PROTECTED] > >[mailto:[EMAIL PROTECTED] Behalf Of Roland > >Huggins > >Sent: Thursday, January 11, 2007 1:13 PM > >To: [email protected] > >Subject: Re: Wood Coating > > > > > >AS we all know, 13 allows fire retardant wood to be used as defined > >by NFPA 703. The last time I looked (was nit recently but a year or > >3), NFPA 703 addresses both pressure treated wood (as required by the > >building code to qualify as treated) AND surface applied (ie field > >painted). > > > >IMHO, bad approach. > > > >Roland > > > >On Jan 10, 2007, at 2:09 PM, Todd Williams - work wrote: > > > > > I had a architect ask me about using this in a combustible church > > > attic. I was skeptical and did a little investigating. The tests > > > that produced the results had a minimum film thickness in order to > > > work properly. How do you verify the minimum thickness in a field > > > application? My guess is that the tests shown (by UL Canada only) > > > were not done on assembled structures, but on individual pieces of > > > material that were coated under near ideal conditions. What would > > > happen in a structure coated after assembly? Why is there no UL - > > > United States or FM tests? Too many questions for me; I'd walk > > > away. (So did the architect referenced above) > > > > > > Todd > > > > > > At 04:15 PM 1/10/2007, you wrote: > > >> Has anyone seen this product? > > >> It touts that it replaces sprinklers in combustible concealed spaces, > > >> under NFPA-13. > > >> If you have seen it, pros and cons? > > >> > > >> http://www.eaglecoatings.net/content/safecoatlatex.htm > > >> > > >> > > >> Wayne Automatic Fire Sprinklers, Inc. > > >> 2006 Inductee into "The Players Hall of Fame" > > >> at The Great Games of Business > > >> Wayne Automatic Fire Sprinklers, Inc. "Best Places to Work" > > >> Rated #1 in 2006 > > >> Large Business Category > > >> by Orlando Business Journal > > >> _______________________________________________ > > >> Sprinklerforum mailing list > > >> [email protected] > > >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > Todd G. Williams, PE > > > Fire Protection Design/Consulting > > > Stonington, Connecticut > > > 860-535-2080 > > > www.fpdc.com > > > _______________________________________________ > > > Sprinklerforum mailing list > > > [email protected] > > > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, Connecticut > 860-535-2080 > www.fpdc.com > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
