Sika-Trocal SG

A PVC membrane, with glass fibre reinforcement, for use in mechanically fastened single-ply waterproof systems. Highly resistant to ageing and industrial pollutants and requiring no surface treatment or maintenance throughout its service life.

The glass fibre reinforcement virtually eliminates shrinkage, which makes the membrane suitable for use on concave roof surfaces with a radius of less than 20 m.

The membrane is fastened with Sika-Trocal metal discs or proprietary pressure plates, secured with thermally broken fasteners.

Laps are sealed with THF welding agent, with hot air sealing used at details.

General information

Uniclass 2015

Pr_25_57_51_66 Polymeric membranesPrimary


J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

J42/130 Cold deck roof covering

J42/400 Waterproof membrane

Specification data - Polymeric membranes

Product Reference

Sika-Trocal SG


1.1 m

2.0 m


Light grey

Slate grey


Sika-Trocal injection moulded corners

Sika-Trocal metal

Standard product features


1.5 mm.


1.9 kg/m².

Product Options


  • Sika-Trocal injection moulded corners: Pre-formed pieces for forming corners.
  • Sika-Trocal metal: 0.6 mm thick galvanized steel coated on the upper side with 0.8 mm thick layer of plasticized PVC. Coloured to match the waterproof membrane. Used to produce perimeter flashings, connections and fixings.

Third party certifications
  • 09/4668 - Product Sheet 1 : Sika-Trocal Mechanically Fastened Systems - Sika-Trocal S
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