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Table 1 Physical and Performance Requirements for Type 1 Elastomeric Sheet Membrane Roofing
Property Unit Requirements
Measured thickness sheet–overall mm 1.016
Tensile strength MPa ≥ 9.0
Dynamic puncture resistance -- Pass @ 5 J
Static puncture resistance -- Pass @ 20 kg
Elongation ultimate % ≥ 300
Tensile set % ≤ 10
Tear resistance kN/m ≥ 26.27
Brittleness point °C –45
Ozone resistance, on cracks -- Pass
Heat aging - tensile strength MPa 8.3
Heat aging - elongation, ultimate % ≥ 200
Heat aging - tear resistance kN/m ≥ 21.9
Heat aging - linear dimensional change % ≤ ± 1
Water absorption mass % ≤ +8, –2 of original
Weather resistance - visual inspection -- No cracks or crazing
Weather resistance - PRFSE Footnote (1) % ≥ 30
Weather resistance - elongation, ultimate % ≤ 200