Sika-Trocal SGK Adhered Roof System S-Vap 500E

PVC waterproof system for warm roofs.

System includes:

  • Sika-Trocal® SGK waterproof membrane.
  • Polyisocyanurate foam board insulation.
  • S-Vap 500E vapour control layer.

- Waterproof membrane:

A PVC membrane, with glass fibre reinforcement and a fleece backing to the underside, for use in adhered single-ply waterproof systems. Suitable for pitched, flat and curved roofs. Highly resistant to ageing and industrial pollutants and requiring no surface treatment or maintenance throughout its service life.

The membrane is designed to be fully adhered to suitable substrates using Sika C300 polyurethane adhesive.

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

- Vapour control layer:

A 0.15 mm thick, polyethylene based, vapour control layer. S-Vap 500E is manufactured from low density polyethylene, blended to produce a vapour control layer that is flexible when cold, resistant to chemicals and ageing and rot proof. It is suitable for use in most mechanically fastened systems using the Sika-Trocal membranes. Not suitable for high humidity applications or under green roofs.

General information

Uniclass 2015

Ss_30_40_30_80 Single layer sheet warm roof covering systemsPrimary


J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

Specification data - Single layer sheet warm roof covering systems

Product Reference

Sika-Trocal SGK Adhered Roof System S-Vap 500E

Waterproof membrane



Sika-Trocal SGK


Light grey

Slate grey


Polyisocyanurate foam board

Vapour control layer

S-Vap 500E


Sika-Trocal C300 PU Adhesive

Sika-Trocal metal

Sika-Trocal S membrane

Sika-Trocal SG membrane

Standard product features

Waterproof membrane:

- Width:

2.00 m.

- Thickness:

  • Membrane: 1.5 mm.
  • Membrane and fleece: 2.4 mm.

- Mass:

2.1 kg/m².

Vapour control layer:

- Material:

Low density polyethylene (LDPE).

- Dimensions:

  • Thickness: 0.15 mm.
  • Width: 5.0 m.
  • Roll width: 1.3 m.
  • Roll length: 25 m.

- Weight:

0.144 kg/m².

- Colour:


- Vapour resistance:

>476 MNs/g.

Product Options


  • Sika-Trocal C300 PU membrane adhesive: One-component polyurethane based adhesive curing by humidity for partial bonding of SGK membranes.
  • Sika-Trocal SG membrane: Used for detailing work.
  • 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.
  • Sika-Trocal S membrane: Used for detailing work.

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