Cosmofin GF

A glass reinforced PVC roofing membrane incorporating a polyester fleece backing. The factory laminated polyester backing allows the membrane to be partially or fully adhered to the underlying substrate using a compatible cold applied adhesive and can be the ideal solution on curved, steep or undulating roof designs that prove challenging for other systems.

General information



Uniclass 2015

Pr_25_57_51_66 Polymeric membranesPrimary


J42/10 Warm deck roof covering

J42/400 Waterproof membrane

Specification data - Polymeric membranes Enhanced data

Product Reference

Cosmofin GF



Light grey

Standard product features




1.5 mm.

Roll size:

2.12 m x 15 m.

Technical properties:

  • Dimensional stability (to BS EN 1107-2): ≤ 0.3%.
  • Elongation (to BS EN 12311-2 (A)): 30%.
  • Elongation (to BS EN 12311-2 (A)): 30%.
  • Hail resistance (to BS EN 13583): ≥ 17 m/s.
  • Joint shear resistance (to BS EN 12317-2): ≥ 600 N/50 mm.
  • Peel strength overlap (to BS EN 12316-2): ≥ 185 N/50 mm.
  • Reaction to fire (to BS EN 13501-1): Class E.
  • Resistance to impact (to BS EN 12691 (A/B)): ≥ 500 mm.
  • Resistance to static loading (to BS EN 12730): ≥ 20 kg.
  • Resistance to static loading (to BS EN 12730): ≥ 20 kg.
  • UV exposure (to BS EN 1297): Pass.
  • Water vapour diffusion value (to BS EN 1931): 20 000 µ (± 30%).
  • Water tightness (to BS EN 1928(B)): Pass.

Product Options


Other colours are available to special order, contact manufacturer for more information.

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