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A protection sheet based on polyvinylchloride (PVC) with inlay of glass, non-woven, containing flame retardant.

Features and benefits:

  • Easy and safe application.
  • Excellent weldability.
  • Good mechanical strength.
  • Reaction to fire in accordance with EN 13501-1.
  • Recyclable.


Used as a protection layer on top of Sarnafil G roof waterproofing membrane in ballasted flat roof systems. Not applicable for permanent exposure to ultraviolet irradiation, or as a primary waterproofing membrane. Not compatible with direct contact to other plastics, e.g. EPS, XPS, PIR or PF, and not resistant to tar, bitumen, oil and solvent-containing materials.

Standard product features

Technical characteristics:

  • Size (l x w): 15 x 2 m.
  • Thickness to EN 1849–2: 1.3 mm.
  • Weight: 51 kg.
  • Material: Polyvinylchloride (PVC).
  • Surface: Smooth.
  • Colour: Top surface: Beige. Bottom surface: Dark grey.
  • Reaction to fire (EN 11925–2, classification to EN 13501–1): Class E.
  • Tensile stress to EN 12311–2: ≥10 N/ mm².
  • Elongation to EN 12311–2: ≥130%.
  • Water vapour transmission properties to EN 1931: 13 000 μ.
  • Resistance to impact to EN 12691: ≥750 mm.
  • Resistance to root penetration to EN 13948: Pass.
  • Foldability at low temperature to EN 495–5: ≥-20°C.
  • Application temperature: -20 to + 60°C.

NBS Specification

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This product is associated with the following NBS Create clause:
45-65-50/325 Plastics sheets

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Sika Sarnafil


+44 (0)1707 394444

Product reference

Sarnafil G 445-13

Manufacturer details

Welwyn Garden City,
Hertfordshire, AL7 1BQ
Tel +44 (0)1707 394444
Fax +44 (0)1707 377300
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