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TECHNICAL DATA BULLETIN VersiWeld TPO Reinforced Membrane Extreme Testing for Severe Climates Environmental Cycling subjects the membrane to repeated cycles of heat ASTM Standard D6878 is the material specification for Thermoplastic aging, hot-water immersion and xenon-arc exposure. Polyolefin-Based Sheet Roofing. It covers material property requirements 0 ASTM requirement-none for TPO roof sheeting and includes initial and aged properties after heat and xenon-arc exposure.As stated in the scope of the standard, "the tests Versico EXTREME test*: and property limits used to characterize the sheet are values intended to - 10 days heat aging at 240OF(116°C)followed by ensure minimum quality for the intended purpose.'Versico's goal is to - 5 days water immersion at 1580F(70°C)followed by produce TPO that delivers maximum performance for the intended purpose - 5,040 kJ/m2(2000 hrs at 0.70 W/m2 irradiance)xenon-arc of roofing membranes. Maximum performance requires the membrane to exposure far exceed the requirements of ASTM D6878. *Test specimen is 2.75"by 5.5"(69.85 mm by 140 mm)piece of membrane with edges Heat Aging accelerates the oxidation rate that roughly doubles for each sealed. 180F(10°C) increase in roof membrane temperature. Oxidation (reaction *Criterion-after 3 complete cycles,test specimens shall remain flexible and not have with oxygen) is one of the primary chemical degradation mechanisms of any cracking under lox magnification while wrapped around a 3"(76.2 mm)-diameter roofing materials. mandrel. Supplemental Approvals, Statements and Versico Extreme Testing - Heat Aging Characteristics: ASTM Requirement VersiWeld 1. VersiWeld TPO meets or exceeds the requirements of ASTM D6878 Requirement Standard Specification for Thermoplastic Polyolefin-Based Sheet ASTM Test 240'F 32 weeks* >128 weeks Roofing. *Heat exposure comparable to 3,120 weeks(60 years)at 185°F for 8 hours/day. 2. Radiative properties for ENERGY STAR, Cool Roof Rating Council • Test specimen is 2" by 6" (50.8 mm by 152.4 mm)piece of (CRRC)and LEED. 45-mil(1.14 mm)membrane unbacked, placed in a circulating hot-air oven. 3. VersiWeld TPO membranes conform to requirements of the US E.P.A.Toxic Leachate Test(40 CFR part 136) performed by an • Criterion-no visible cracks after bending aged test specimen independent analytical laboratory. around 3" (76.2 mm)-diameter mandrel. 4. VersiWeld TPO was tested for dynamic puncture resistance per A-Trac testing combines accelerated weathering with real world conditions ASTM D5635-04 using the most recently modified impact head. using an array of ten mirrors to reflect and concentrate full spectrum 45-mil (1.14 mm)was watertight after an impact energy of 12.5 sunlight onto membrane test specimens.The Q-Trac device automatically J (9.2 ft-Ibf)and 60-mil (1.52 mm)was watertight after 22.5 J tracks the sun's path from morning to night.Also, it adjusts to compensate (16.6 ft-Ibf). The 80-mil (2.03 mm)was watertight after an impact for seasonal changes in the sun's altitude. Eight years in Q-Trac testing is energy of 30.0 J (22.1 ft-Ibf). equal to 40 years of real-world exposure.Versico requires its VersiWeld TPO membranes to pass the equivalent of 40 years of exposure in the 5. NSF-P151 Certification for rainwater catchment system components. Q-Trac. - Plant 91/White Only Versico Extreme Testing - Q-TRAC ASTM Test ASTM D6878 Requirement VersiWeld Requirements N/A N/A Equivalent of 40 years of exposure QVJA VE2sICo ROOFING SYSTEMS BUILDING VALUE