b'II reenRoofingUpdate Opportunities and Challenges ofRoofing Green By Kurt Baumgartner As h been discussed before inroofs) are not LEED certified;youassessingbui dingperformance asI Midwest Roofer and other publica must use products that, along withand achieving sustain lity goals, abipor th ll individuations, "Green Buildings" are im o er considerations, allow you towhile a owing forl buildtant totoday\'sbuildingowners,accumulate points toward certifica ing design function. managersoccupants.tionofan entirebuilding.LEEDTh isagroup anderealsocompeting Severalcitiesandsomestatesgives youfor using productstoLEED called Green Glob that pointses have already mandated guidelinesthat have been recycled or containpromotestheuseofwoodasa for the use of "green" or en recycledmaterials.Themaximumrenewable resource, whereas LEED vironhealvailablewith mentally-friendly products. T twotot points a are 69.is more comfortablesteel conprograms most commonly u toTheLEED subm processisstruction as ale resource. sedittalrecyclabachie th are Energy Star andcu Thereis a registra GreenGlobesis now accep in veismbersome.ted When people thinkLEED.tion fee involved.LEED certi severalequalLEED. Basicstates asto E Star is at e ort of theficationisachievedwith26-32Accordingtotheseorganizanergyjoin ff"gre roofing,"Departmentpossible.sta roofi can ofenU.S.of Energy, the EPApoints, higher levels aretions, su inability inng they think ofand private industr You may haveSomeare now calling for sil be achieved by the use of fivedify.cities seen theEnergyStarlabelasanver or gold LE ratings for theirferent criteriathatmaybeeither ED rooftop gardens orendorsementany of aofownbuildings. L point levelsexclusivetothesystemorcomonnumberEED products.ne to achieve a higher level ofbinedtoachievethedesired "vegetative roofs."eded In 2004,theNational Associa "green" are as follows:results.include: These In some cases theytionofHomeBuilders(NAHB) Silver - 33-38 points T use of recycled materialsI") he._ began development of their Model Gold - 39-51 The u of n materialsca1, are correct, butpointsseewthat GreenH BuildingGuidelines.Platinum - 52 - 69 pointsberecycledwh th have omeeney T project wasledbyNAHB\'stheir origihe "green roofing"Youcan gain additionalpointsreached the end ofnal ResearchCenterusing a processfor roofing if 20% of the materialslife cycle technically meansthat mirrored their AN -accreditedusedaremanufacturedwithin a Extendedice I SI serv ife anything that isprocedures. TheGuidelineswere500-mile radius of thel T morent use ofy fina assem heefficie energproduced to provide aset ofblyint. Remember that there areand other natural resources modelpoenvironmentally green building provisions for use innoLEEDcertifiedproductsand T renewingn lrces heofatura resoufiiendly.residential construction.every building will score differently The U Green Building Coun becauseof thecategoriesdevel.S. cil\'sLeadershipinEnergyandoped for consideration. The LEED EnvironmentalDesign{LEED)Program provides a framework for GreenBuilding Rating Systemis, for now, aluntary national buildvoing guideline that assigns points to ratetheenvironmentalimpactof each building. T LEEDProgramaddresses he ergyenvmany en savings andironmentalconditions,allowinga "wholeilding" pe which bu rspective considers the building\'s life cycle. LEEDis a self-assessingprocess designedfornewandexisting buildings.ividual products uInd sed inbuilding con ruction (suchas st'