b'No Sacred Cows Allowed - Just Straight Talk Continued from page 3 ability of roofing to w stand ther mularesulted insystemslish the strain en benchm kfutu performanceof m fied ith hasroofergyar reodimal shock, flexing, fatigue resis that are approachingtheir 30thof3in.lb/in inclu bothbitumenrdingmemb anes. tance, puncture resistance, impactAnniversary with many years ofasphalt and coal tar built-up roofs.Garland\'s real complaint is not resistance,wind andfireresis life still in them.Thus,on the origin with my editorialcom t,but NIST drewalmentance. NBS 55 does not call forGarland realizes that the con dat that wasusedin therather with the test results conabase tothe any load strain ability. However,trols that we insist oninsure1970stoestablishthe200tained inreport of Structural NIST (formerly NBS) later pub roofing success is an irritation topou per inch tensile strengthResearchc.),indepenndsIn (SRI an Ialoadstrainenergymanycon whowanttorequirement.T strainenergydentng lab inddleton, Wis. ishedtractorshetesti Mirequirement of 3lb/in2. Gar continue the some o methodsapproach of today surpassesWe can ap why Garland in.- ldthepreciate land\'s Systems exceed this num that haven theofing indus individual perform conceptsdoesn\'t like theresults, pargive ro ancetest ber by more than daubtry the bad reputation that it has inproposedbyNBSin theearlyticu y w n ther enerle.larl he st aingy of 4,Garland began970s.r. calledndomIn 197whentothe minds of many building own 1 T is isprogress.the Garla systems is c pared develop high-performance roofs toers. Low price roofing is easy toThe secondparagraph of thewithof asystem thatcompeting replacefailingasphalt Built-Upachieve. Anybody can cutab le\'.termisrepresentsthe(Tamko Aw ).Garland truly qualityoveaplan If Roofs, we used the old 5-ply Coalandcut cornersto achieve Icontents of our strain energy arti believes the SRI lab test is "quowesTarPitch Built-UpRoofasaprice.Successfulroofingmaycle and en misses then tiona "are preparedw k tirelypoi t.ble, wetoorbenchmark.Wewantedstrong,come with ainitial price,T strain energy concept allowswithrland to d emhigherheGa evis new coweather-resistant,tough,andbut high performance roofing istheindustry to comparemem petitivelab testsbasedonthe punctureresistantsystems thatusuallyleast costly over thebraneperformance capa strain energy concept devised by thesystem would perform like the old 5-plylife cycle of the roof.bilities,evenwhentheyhaveNIST,providedth Garland at Coal Tar Pitch Bui It-Up Roofs thatGarlandproud of its productsdiffe nt attribu i.e ,ten a es the results will bepisre tes,highgre ubare no longer available todayand systems and we are willing tosile vs. high elongation. Tore lished. Garlandbelievesthatsomestand behind them with guaran quote Dr. ReneDupuis,"StrainIt is veryinteresting that the elongation is important, and we,tees that reflect our confidence inenergy is the only universal yardGarland president has established therefore, added elongation abilitythem. This confiden gainedstick to measure theirhn ,a coaltar pitch systemashis ce wastoug esstheorighbenchmarkofquality,"the with the polymers andorien from the excellent track record andas high strengthh elonga20beper 5-tationof theyarnsinour rein field experience spanning overtion by themselves canveryunquestioned su iority of a forcedfabrics.Webelievetheyears, not from ao labmisleading."ply C Tar Pitch R ." He furquesti nableoaloofelongation ability of our systemstest!Onffere o ,therstates that "5-ply CoalTar four di ntccasions the are many times more than is nec Garland\'shigh-performanceGarland correspondence attemptsP chp Ro a extremely it Built-U ofsre ancestrong, weather resistant, tough essary for roofing success.systems, together with our part to downplay the signific of Garland has never relied on anership warranties that help build the Strain Energy criteria and theand puncture resista " No doubt nt.single lab test to predict the suc ingownerskeeplong-termcomparison test.Allied SignalandKoppers will cess of asystem. The proof iswarrantiesineffectwithourBut, we continue to believe thatappreciate these quotes. roof in the pudding. Garland\'s averageinspec program, providethe combination of strength (ten OurconcerrswithGarland tioncusannual cost for warranty work is atomers withepossible roofsile) and elasticity (elongation),comp ge to Coala as th bestarin its lfTarre fraction of 1of our annualprogramfortheirinvestment.which are measured togetherfollows: percent makeI Then energy test strairevenue. We have several thou What would you rely on toin the strain energy test, pro-sandsatisfiedcustomerswhoroofing decisions, aof avide a superioraddresses the toughness quarter century of success, or alabmeans of p ofamembrane have been continually using thesesingleredictingthewh subjectedto systems tor just under atest?en quarter of aphysicalstrain.Itis century. Garland\'s strengths have been,Commentary on Garlandclear that aof memrobranec taining and always will be, incontrolCorrespondenceonthe thatwebringtoeveryproject,By L.B. Morrisahighstrain which includes proper specifica MRCA Presidentenergy levelis 1970sfar tougher than tions, the best quality materials forThe Garland letter uses a the conditions, and job progressvintagedocument,NBS55, toamembrane buttress its argument, while totallylwith aer level lowinspectionstoinsureproperignoring NIST\'s most recent work\\ofstrain installation,alongwithannual e y.takes inspections to insure that the roofson this subject. Data from NBS 55nerg It are maintained properly. This for- was used by NIST to help estab- a gre leap of at'