Liquid Roofing

FIX-R Liquid Roofing is a cold-applied, single component modified Polyurethane, resulting in a seamless, liquid waterproofing membrane that is totally non-hazardous. FIX-R Liquid Roofing is a firm favourite for Roofers, as it can be applied to almost any roof substrate and is ideal for roofs with complex detail and upstands. It is fully reinforced with a polyester membrane and cures naturally through contact with moisture in the air, creating a waterproofing system suitable for use on both new and remedial projects.

Typical Applications

Small or large commercial projects

New or refurbishment


Profile roofs

Complex detailing, up-stands, penetrations and terminations

Over-coating failed single ply or existing coatings



Virtually odourless with extremely low VOCs

Fast curing (1-2 hours touch dry)

Safe, flame-free installation

Minimum wastage: unused product can be stored and reused

Water repellent on application (wet-on-wet)

Wide range of applications

Surface-specific Primers available

15-year product warranty


Can’t be applied in the rain

Must be used with Fabric

Product Specifications


Use FIX-R Fabric to fully reinforce FIX-R Liquid Roofing, creating a flexible and strong waterproofing system.

Fabric Sizes:

  • 25m x 1m (for field area)
  • 25m x 250mm (for detailing and upstands etc.)
  • 25m x 100mm (for board joints)

Stain Blocker Primer

FIX-R Stain Blocker is a high build primer designed to be used on all bitumen substrates before the application of the main Liquid Roofing.

  • FIX-R Stain Blocker is bright blue in colour and designed to promote adhesion to all bitumen based surfaces
  • All chippings and ballast must be removed from the substrate; the surface must be cleaned thoroughly by power washing and then sealed with FIX-R Stain Blocker

GP Primer

A water based, low viscosity white primer intended for adhesion promotion on:

  • PVC Single Ply Membrane
  • Treated and Untreated Wood
  • GRP
  • Approved Insulation Boards
  • OSB3 Decking Boards
  • Apply only when atmospheric and substrate temperatures are greater than 5°C
  • The surface of the substrate should be clean and dry and must be 3°C above the dew point

Jointing Tape

FIX-R Jointing Tape is a polyester reinforced self-adhesive tape designed to seal joints and seams prior to the application of the FIX-R Liquid Roofing System. It replaces the need for the 100mm wide reinforcing fabric and liquid application reducing overall installation costs.

  • Seals telescopic tube fasteners in a mechanically fixed insulation system
  • Excellent adhesion to most substrates
  • Water resistant immediately after application
  • Available in rolls of 25m x 100mm

Registered Office: SIG Trading Limited, Adsetts House, 16 Europa View, Sheffield Business Park, Sheffield, S9 1XH. Registered in England No. 01451007 VAT No. GB 487 01733