Project Description

GRP Felt Roofing Upgrade

This beautiful property located close to the home of Mick Jagger situated in Dartford, Kent required a GRP Flat Roof Upgrade.

As a matter of urgency, LAM were contacted by a client and were asked to attend site and survey an existing Felt Roof and provide a maintenance free GRP Roof Lining Solution after reports of a leaking felt roof.

Client Brief

On completion of the site survey our assessments identified the following problems

  • Existing felt protection failed
  • Refurbish of two existing felt flat roofs
  • Felt showing signs of significant deterioration
  • Water loss into building
  • Potentially weakening the roofs structural integrity.


LAM Liquid Roofing Coatings solution for Felt Roofs that encompasses all of the following requirements.

  • Fully Managed Start to finish
  • 3 Days Scope.
  • No disruption to build functions
  • Benefit from a Leak Free Liquid Applied Roofing membrane
  • Existing Felt Roof Cleaned And Prepared Ready For the new fibreglass (GRP) roof to be installed.
  • Substrate is then lined with a Mechanically Fixed 18mm OSB 3 Smart PLY before application of the fibreglass (GRP) Waterproofing Membrane.
  • Prefabricated Edging Trims are installed to give the roof the correct water run-off.
  • Fibreglass (GRP) Layer is carefully moulded to complete a seamless waterproof lining to encapsulate the entire roof area.
  • The final enamel like hard wearing topcoat is applied to give the roof lasting protection before lead flashing and detailing are reinstated.


  • OSB 3 Smart PLY

Time Taken

  • 3 Days

Contract Value

  • £(*POA) call for more information

We strive for excellence in our GRP Lining and Provide Responsible, Fully Managed Turnkey Solutions.

  • Remove all surface contaminants including the failed existing coating
  • GRP Lining of all internal surfaces
  • Lining Inspection and Testing commenced and certified
  • 25 Year Lining Guarantee


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