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Cold liquid applied membrane for the flat roofing refurbishment market. The system provides a guaranteed watertight roof without the need to remove the existing roof.

The Topseal Direct Lay System can be applied directly to felt, asphalt, concrete, GRP and insulation (TR27 T&G or equivalent). Topseal Direct Lay Primer is laid directly onto a clean, dry and structurally sound substrate. Used with a 600 g/m² roofing grade reinforcement mat, roofing resin and topcoat, the system provides an direct lay roofing system suitable for new builds and refurbishment roofs on both domestic and commercial properties.

Features and benefits:

  • Up to 20 year guarantee with optional guarantee with optional guarantee protection certificate.
  • Ten year insurance backed guarantee available.
  • Direct lay to felt, asphalt, concrete.
  • Cold liquid applied reinforced membrane.
  • To be installed by Topseal trained approved installers only.
  • Minimal disruption on site and no landfill as no removal of the pre-existing roof.
  • No new decking boards required.
  • Minimal risk of water penetration into the building whilst work is carried out.
  • Faster installation than standard GRP system.
  • Full range of BS/ RAL colour topcoats.
  • Available with anti-slip finish.


  • Topseal Direct Lay Primer.
  • Topseal resin.
  • 600 g/m² reinforcement mat.
  • Topseal topcoat.

General information
Specification data - Polyester resin waterproof coatings
Product Reference

Topseal Direct Lay System


See 'Options' below and insert requirements.


As drawing

Contractors choice

Product Options


Available standard colours: Cool Grey and Dark Admiralty. Topseal roofs can be specified in any BS 4800 or RAL colour, consult manufacturer.


A wide range of GRP edge trims are available, consult manufacturer with requirements.

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