Polyvap

Application

Polyvap membranes are designed to be used as vapour control layers in warm roof construction and as part of a built-up system in new or refurbishment work.

Description

A range of high performance, aluminium cored vapour control layers (VCL’s) coated with a high quality polymer modified bitumen coating. The underside of Polyvap TT and Polyvap TS are protected by Polyflam, a special polyethylene film which melts upon torching. In the Polyvap TT version, the top surface is also protected by a layer of Polyflam, providing a bitumen rich surface. The top surface of Polyvap TS has a coating of fine sand thereby enabling the use of bitumen or Polyglass polyurethane adhesive to bond insulation to the upper face of the VCL. Polyvap SA is a self-adhesive membrane manufactured using ADESO® technology and can be incorporated in to a completely flame free ADESO® self-adhesive roofing system.

Features:

  • Torch-on and self-adhesive applications available.
  • Aluminium core stops ingress of water vapour and damage to roof construction.
  • Durable polymer modified bitumen coating.
  • Cost effective performance.
  • Part of a complete package of waterproofing components.

Application:

Polyvap membranes are designed to be used as vapour control layers in warm roof construction and as part of a built-up system in new or refurbishment work.

General information

Finish

Polyvap SA: Removable mono-silicone coated polyethylene film both sides

Polyvap TS: Fine sand upper face and Polyflam film lower face

Polyvap TT: Polyflam film both sides

Features

Torch-on and self-adhesive applications available

Aluminium core stops ingress of water vapour and damage to roof construction

Durable polymer modified bitumen coating

Cost effective performance

Part of a complete package of waterproofing components

Material

Polyvap SA: Aluminium foil core coated with a special elastomeric (SBS) self-adhesive compound

Polyvap TS and Polyvap TT: Aluminium core, reinforced with a glass fibre and coated with an advanced APP modified bitumen compound

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

J42/120 Inverted roof covering

J42/395 Air and vapour control layer

Specification data - Reinforced bitumen roofing sheets

Product Reference

Polyvap SA

2 mm thickness.

Polyvap TS

3 mm thickness.

Polyvap TT

3 mm thickness.

Standard product features

Material:

  • Polyvap SA: Aluminium foil core coated with a special elastomeric (SBS) self-adhesive compound.
  • Polyvap TS and Polyvap TT: Aluminium core, reinforced with a glass fibre and coated with an advanced APP modified bitumen compound.

Finish:

  • Polyvap SA: Removable mono-silicone coated polyethylene film both sides.
  • Polyvap TS: Fine sand upper face and Polyflam film lower face.
  • Polyvap TT: Polyflam film both sides.

Roll size:

  • Polyvap SA: 1 x 15 m.
  • Polyvap TS: 1 x 10 m.
  • Polyvap TT: 1 x 8 m.

Technical properties:

  • Tensile strength (to BS EN 12311): MD: 500 N/50mm; TD: 200 N/50mm.
  • Elongation (to BS EN 12311): Polyvap SA: 4%; Polyvap TS and Polyvap TT: 30%.
  • Low temperature flex (to BS EN 1109): Polyvap SA: 4%.-25°C; Polyvap TS and Polyvap TT: -10°C.

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