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EshaFlex 370 z/z is an SBS modified bituminized cap sheet in loose laid and ballasted systems or as base layer in pour and roll systems. EshaFlex 370 z/z is an SBS modified bituminized polyester fibreglass composite with a sanded finish on both sides. Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment. Overlaps must be sealed with hot bitumen.

For all applicable roofing systems see Esha System Information Sheets and KOMO certificate.


KOMO certificate: K66713, NL-BSB: K66717, CE-0620.

General information
Specification data - Reinforced bitumen roofing sheets
Product Reference

EshaFlex 370 WS z/z

Standard product features

Product characteristics:

  • Appearance top side: Sand.
  • Coating top side: SBS modified bitumen.
  • Reinforcement: Polyester fleece, glass yarn reinforced.
  • Coating bottom side: SBS modified bitumen.
  • Appearance bottom side: Sand.


1 m.

Product Options

Technical data:

  • Mass per unit area: 2.9 kg/m² (± 10%).
  • Effective thickness: 2.6 mm (± 0.2 mm).
  • Reaction to fire: Pass, Class F.
  • Watertightness: Pass, ≥ 10 kPa.

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