EshaBase SA Alu 4.2 mm

EshaBase SA Alu 4.2 mm is a self-adhesive aluminium cored vapour barrier for bituminous roofing systems. Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment. For all applicable roofing systems see Esha System information sheets, KOMO certificate and FM approvals.

EshaBase SA should be fully cold bonded to surface pre-coated with Esha SA Primer.


  • FM approved ID: 3017648.
  • Product characteristics report BDA 0059-L-11/3.
  • CE according to BS EN 13970.

General information

Uniclass 2015

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Specification data - Reinforced bitumen roofing sheets

Product Reference

EshaBase SA Alu 4.2 mm

Standard product features

Product characteristics:

  • Appearance top side: Sand, plus removable overlap film.
  • Coating top side: SBS modified bitumen.
  • Reinforcement: Glass fibre fabric, plus aluminium/ polyester laminate.
  • Coating bottom side: SBS modified self-adhesive bitumen.
  • Appearance bottom side: PP release film.


1 m.

Product Options

Technical data:

  • Mass per unit area: 4.9 kg/m² (± 10%).
  • Effective thickness: 4.2 mm (± 0.2 mm).
  • Reaction to fire: Pass, Class E-d2.
  • Watertightness: Pass, ≥ 60 kPa.

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