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EshaFlex 370 WS Mini Slate is a root resistant torch applied SBS modified bituminized polyester/ fibreglass composite cap sheet with a black mineral finish for use in bituminous green/ biodiverse roofing systems. Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment. Overlaps must be torched.

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


  • KOMO certificate: K66713, NL-BSB: K66717, CE-0620.
  • Root resistance tested according to BS EN 13948.

General information
Specification data - Reinforced bitumen roofing sheets
Product Reference

EshaFlex 370 WS Mini Slate

Standard product features

Product characteristics:

  • Appearance top side: Black mini slate with an overlap film.
  • Coating top side: SBS modified bitumen.
  • Reinforcement: Polyester/ fibreglass fleece, glass yarn reinforced.
  • Coating bottom side: SBS modified bitumen.
  • Appearance bottom side: PE film.


1 m.

Product Options

Technical data:

  • Mass per unit area: 4.6 kg/m² (± 10%).
  • Effective thickness: 4.4 mm (± 0.2 mm).
  • Reaction to fire: Pass, Class F.
  • Watertightness: Pass, ≥ 10 kPa.

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