Roofing Overlay Systems

Many liquid applied membranes can be used as overlays to existing waterproofing on flat roofs or profiled sheeting systems like profiled metal or fibre cement sheets. Liquid applied membranes are seamless and fully bond to the substrate making them ideal for use over waterproofing systems that have failed at laps or seams or are coming to the end of their economic lives. Liquid applied membranes are available in light colours that help to reduce heat stress on the existing system.

For more information regarding the use of liquid applied membranes as an overlay to an existing roof please refer to the LRWA Code of Practice for Roofs which is available to download.

Roofing Overlay Systems in Detail


Roofing Overlay Systems – The Benefits

  • Seamless
  • Tough flexible membranes
  • Easy to install
  • Simple detailing
  • Fire and impact resistance