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Sika-Trocal S

Sika-Trocal S

Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type


Homogeneous PVC waterproof membrane for mechanical fastening.

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

A homogeneous PVC membrane, without any polyester fabric carriers, 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 absence of carrier within the membrane enables the natural flexibility and extensibility of the membrane to absorb any movement of the roof. The membrane also absorbs some of the dynamic wind loads applied to the roof, so reducing the loads transferred to the fasteners.

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 S


1.1 m

2.0 m


1.5 mm

2.0 mm


Light grey

Slate grey


1.9 kg/m²

2.5 kg/m²


Sika-Trocal injection moulded corners

Sika-Trocal metal

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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