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Sika-Trocal SGmA

Third party certifications:
  • BBA Agrément Certificate

    Certificate type


PVC waterproof membrane with glass fibre reinforcement for ballasted applications.

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+44 (0)1707 394444 www.sikatrocal.co.uk

A PVC membrane, with glass fibre reinforcement, for use in ballasted single-ply waterproof systems. The membrane contains biocides and is highly resistant to ageing, to industrial pollutants and to the bacteria that flourish in the moist layer of dirt present immediately above the membrane in ballasted roofs. It requires no maintenance throughout its service life.

The membrane is restrained by the weight of ballast, although under timber decking additional restraint such as Sika-Trocal metal discs or proprietary pressure plates may be required.

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

General information
Specification data - Polymeric membranes
Product Reference

Sika-Trocal SGmA


1.5 mm

2.0 mm


Light grey

Slate grey


Sika-Trocal injection moulded corners

Sika-Trocal metal

Product Options


1.5 mm thick membrane.

  • Width: 2.0 m.
  • Mass: 1.9 kg/m².

2.0 mm thick membrane.

  • Width: 2.0 m.
  • Mass: 2.5 kg/m².


  • 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 3 : Sika-Trocal Loose Laid & Ballasted System - Sika-Trocal SGmA
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