D2000 Vent

An oxidized bituminous membrane with glass fibre core and 25 mm wide perforations, designed for use as a preparation layer for partially bonded built-up roofing systems.

General information

Uniclass 2015

Pr_25_57_08_71 Reinforced bitumen membrane perforated underlaysPrimary


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Specification data - Reinforced bitumen membrane perforated underlays

Product Reference

D2000 Vent

Standard product features

Technical characteristics:

  • Visible defects (EN 1850-1): None.
  • Length (EN 1848-1): 30 m -1%.
  • Width (EN 1848-1): 1 m -1%.
  • Straightness (EN 1848-1): 20 mm/10 m.
  • Thickness (EN 1849-1): 0.8 mm.
  • External fire performance (EN 13501-5): F roof.
  • Reaction to fire (EN 13501-1): Class F.
  • Flexibility at low temperature (EN 1109): 0ºC.
  • Flow resistance at elevated temperature (EN 1110): 120ºC.

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