b'Qsistthat the general contractor or steel erector certify in writing that theMRCA Membership Alert metal deck meets the upliftuirements forrating.do notItthe opinion ofMRCA Technical andCommittee that the req thespecified WeistheResearch expect this to come quicklyhappily since theing for metal deck current FM 1-52 testing criterion does not take into account the upward orengineeringisallbased ondown pressure.If thiscertificationcannotbedeflection ofmetal decks thatrooting systems areto, based wardtheourattached obtained,theroofing contractor should ask that the testrequ beon engineering calculations for 22 gauge steel deckour techirementperformed by waived before roofing begins. Incase of re-roofing, the ownerldnical consultants. theshouprovide the certification for deck uplift resistance and attachment or waiveThe engineering data supporting our conclusion is available to each the requirement to test.MRCA member upon request. MRCA freely admits that the components used in our analysis are mini G information ourhaswe feel itbe iven thecommitteereceivedwouldprumums and that heavier gage deck and shorter steel spansdthedent tor each MRCA member bidding projects requiring bubble testing to woul change amount of deflection. T point isat deflection of the deck occurs a inrequest from the installer ofdecking system, (or in the case ofreroof heth ndthea the FM test that deflection is imputed to the deflection of the rooffrom the owner) certification of the finished deck upward deflection inforassembly and causes test failures that are clearly not failures.mation.until the certification is received each membercarefully Andshould This test was n developed to test new assemblies but to check assem consider its own liability tor installing the roof. ot blies that had already experienced w dtests are no substi This certification mustincluded in the submittal stage ofproject in damage. Thesebetheso tute for continuous accurate observation of thefing process. T is nothat any testing offinished root will be subject to the data provided by roo herethe ccuratetoowner. a measure of the costsmake an assembly,including the metalthe deck installer or deck, that will consistently pass this test. B it wouldbe surprising ifMRCAwillcontinuetomonitorthis situationandwill p any utnotrovide they exceed the premium increase if th not performed.this reasonupdates requiredthere is any change inprocess. As antive to ey areForifthisalternaMRCA has issued alletin tomembersrded as follows.the FM ratings andwe recommend the wind up-lift calcu tions probu itswo testinglavided by the NRCA wind calculator located at www.roofwinddesign . er.comZrJ.DCJ11Suppliesforlow cost p Contractors Roofing Wildcat Roofi?g Supply_theroducer of_ pply items for issuprofessional roofing contractors. Let our buymg power SUPPLY{OM PAN Yput money to your bottom line. TARPSKNIVES Priced fromPriced fromROLLERS $3.00$2.49Priced from ROLLERS$396.00 HAMMERS Priced from&HATCHETSGLOVES $13.10 Priced fromPriced from $7.99$.46 TAPESKNEE PADS Priced fromPriced from~MS $6.83~ i ~?m$9.27~ rQuality Products- $6.54 At EverydaySHOP ONLINE:www.wifcfcatsuppfy.com Competitive PricesCALL TODAYAFREE CATALOG FOR 866-419-0508'