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D 1 11 : ° ' 1 1 1 ROOFING .O PVC materials when moisture,such as liquid water,dew,condensate, PVC roofing application should install these systems.Never snow or ice,is present on the roof deck or substrate to which the allow contact between the heated surface'of a hot welder or materials are to be applied. other tool and the applicator's hair,skin,or clothing.Always E.Material installation during periods of low ambient temperatures, wear protective gear,including but not limited to:hardhats,eye typically below 45OF(7.20C),can result in poor installation protection,heavy-duty gloves,and snug-fitting clothing. quality.To avoid these problems: C.Solvent-containing accessories may be combustible and should 1.Store accessory materials in a warming box. always be kept from heat,flame,or any source of ignition.Empty containers must be disposed of in posted toxic substance landfills 2.Use as soon as possible after removal from warming box. in accordance with local,state,and federal regulations. 3.Allow adhesives to properly cure. D.Thoroughly train all personnel in first-aid procedures,and 4.Adjust welder settings to ensure proper welds for applicable always comply with all OSHA safety standards and fire codes. ambient conditions. Also,use extreme caution when working around equipment, such as gas lines or HVAC units,which have electrical or gas connections. 1.06 Working Environment E.EverGuard®TPO or PVC roof membranes may be slippery A.Work should only begin when the contractor has decided to his/ when wet.Exercise caution when walking on the TPO or PVC her satisfaction that all specifications are workable as specified, membranes during or after a rain shower,or if moisture is and that the contractor can meet project and code requirements. present in the form of dew,frost or ice.Pay attention while walking on light-colored surfaces as ice or frost build-up may not B.The contractor should only begin roofing work when the be as visible as on a dark surface. substrate(s)have been prepared as necessary,and are ready to accept the roofing materials installed as specified. C.Provide a safe working environment,including,but not limited PART 2-PRODUCTS to,adequate fall protection,restriction of unauthorized access to 2.01 Membrane the work area,and protection of the building and its occupants. A.EverGuard®TPO D.Safe work practices should be followed,including,but not limited B.EverGuard Extreme®TPO to,keeping tools in good operating order;providing adequate ventilation if adhesives are used;and daily housekeeping to C.EverGuard®TPO FB Ultra remove debris and other hazards.See section 1.07 for further D.EverGuard Extreme®TPO FB Ultra details on safety. E.Protect the building,contents,surrounding area,building E.EverGuard°PVC occupants,and contractor personnel during work.Coordinate all F.EverGuard®PVC Fleece-back work operations with the building owner and building occupants G.EverGuard°PVC KEE so that adequate interior protection,as necessary,is provided and disruption to normal building operations is minimized. H.EverGuard®PVC KEE Fleece-back F.Where heavy wheeled or other traffic over the partially completed roofing is unavoidable,provide and use adequate plank or 2.02 Flashing-Wall&Curb plywood,set over a minimum thickness of rigid board insulation to protect the newly installed roof. A.EverGuardO membrane flashing should be of the same type and thickness as the roofing membrane.EverGuard Freedom—TPO G.Provide temporary water cut-offs and tie-ins at the end of each can be used with EverGuard®TPO membrane for flashing in the workday.Remove all temporary work at the beginning of the same thickness as the field membrane. next workday. B.The use of EverGuard Extreme TPO flashings is required on H.When tearing off an existing membrane,limit removal to the EverGuard Extreme°systems. area that will be completely reroofed that day with the new roofing system. C.Because colored TPO membranes may exhibit different welding characteristics,please call 800-766-3411 before attempting to I.If conditions are uncovered or created that would be detrimental weld different-colored TPO membranes with white membranes or to the proper execution of specified work,immediately notify the fleshings. building owner and the designer of record of these conditions for consultation on acceptable remedy or resolution of the problem. D.EverGuard®TPO and PVC Fleece-Back®embranes are optional flashing membranes for all EverGuard TPO and PVC roofing systems,respectively.These membranes may be a solution when 1.07 Safety Considerations&Warnings a contaminated substrate is encountered. A.As with any construction project,safety is a key element.All applicable safety standards and good roofing practices must 2.03 Flashing Accessories be followed.Read and understand GAF's Design&Application Guidelines before starting application.Follow all precautions A.EverGuardO preformed flashing accessories must be of the same and directions. type as the roofing membrane. B.Only properly trained and professionally equipped roofing contractors experienced in the installation of each TPO and 38