Chesterfelt Bituminous Membranes – Performance You Can Specify with Confidence

23 October 2025

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CHESTERFELT has been manufacturing and supplying bituminous roofing membranes for over 45 years, offering a wide portfolio of products designed to support a range of roofing applications, including warm roofs, cold roofs, overlays, and refurbishment work.

All Chesterfelt membranes are manufactured to defined specifications with supporting technical documentation, making it easier for contractors and specifiers to choose suitable products based on performance requirements, site conditions, and regulatory standards.

A Comprehensive Range for Flat and Low-Slope Roofs

The Chesterfelt range includes:

  • Torch-on membranes, such as Deflector Mineral, Deflector Plus 5 Mineral, and Laser Gold Mineral, which are reinforced for mechanical strength and durability in exposed conditions.

Chesterfelt torch-on membranes

  • Underlay options, including Universal Underlay and Laser Gold Underlay, which provide a stable, waterproof foundation layer in multi-layer systems.

Chesterfelt underlay

  • Self-adhesive membranes, like Chesterfoil, an aluminium-faced vapour control layer, designed for straightforward application and compatibility with a range of roof types.

Learn more…

Key Benefits for Contractors and Clients

  • Defined Product Performance – Each membrane is manufactured to consistent quality standards with product data sheets that outline physical properties, installation method, and system compatibility.
  • Ease of Installation – Options for both torch-on and self-adhesive application allow for flexibility on-site depending on the project type, substrate condition, and safety considerations.
  • Durability and Weather Resistance – Reinforced membranes offer high tensile strength and resistance to UV exposure, weathering, and mechanical stress, with material guarantees available up to 20 years when used as part of a recommended system.
  • Regulatory Alignment – Chesterfelt membranes support compliance with BS 8217:2005, Approved Document L, and other relevant UK regulations when correctly installed.

Chesterfelt membrane

Designed for Practical Use

Whether for new construction or refurbishment, Chesterfelt membranes are suited to the practical demands of roofing professionals. With clear guidance, support documentation, and technical assistance available, contractors can specify and install with confidence.

To explore the full Chesterfelt range or speak with a technical advisor,
visit the Chesterfelt website

>> Read more about Chesterfelt in the news

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