EPDM Roof Flashing for pipe sizes 5mm - 127mm Box of 50. Design Excellence Flexible design meets all roofing profiles. Boot flexibility accommodates vibration and pipe movement caused by expansion & contraction. The soft aluminium base easily conforms to most metal roof profiles. Weather Protection Made from E.P.D.M or Silicone compounds, these flashings are compounded specifically for maximum resistance to weathering due to ozone and ultraviolet light Base Flexibility The base is designed to form a seal on most panel configurations and roof pitches regardless of pipe location Fire Retarding Agents The addition of fire retarding agents milled directly into the rubber compound creates a self extinguishing feature which enables it to be used with type "B" vents. Listed with IAPMO certification No.3121