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AluFlash lightweight flashing

AluFlash is a flexible, environmentally friendly alternative to lead as a weathering flashing material for buildings. It is aluminium based and available in two unique surface finishes depending on the application. The lead-free embossed finish is designed for applications requiring less complex shapes such as pitched roof valleys, secret gutters, soakers for slates and double lap tiles and box gutters.

The cross corrugated finish allows up to 25% extensibility and is designed for use where the flashing has to be moulded over and around complex shapes such as profiled roof tiles and corner junctions. It is available in 5m rolls in 150, 200, 250, 300, 350, 400, 450, 500 and 600mm widths

AluFlash is also available factory fitted to all Glidevale brick and blockwork abutment trays and horizontal cavity trays.

Features & Benefits

  • Lightweight, easy and safe to handle.
  • Minimum 30 year design life.
  • Lead free and non-toxic. No potential hazards for installer and no contamination of run-off water.
  • Environmentally friendly. Suitable for rain water harvesting systems.
  • 6% the weight of code 4 lead, providing health and safety benefits for installers.
  • Easy to form over a range of roof profiles without the need for specialist skills or tools.
  • Highly durable surface finish, which does not oxidise, stain or require patination oil.
  • Independently certified.

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Frequently Asked Questions

What is AluFlash and where is it used?

AluFlash is a light-weight, environmentally friendly alternative to lead and can be used as a weathering flashing material or as an internal lining for box gutters.

How long does it last when fitted?

The product is designed to last a minimum of 30 years if it is fitted correctly and in accordance with the manufacturer’s fixing instructions. If the flashings are to be left unsecured for any length of time or are subject to strong winds, it is advised that a batten be fixed across the face of the flashing to prevent wind uplift.

What colours are available for AluFlash?

AluFlash is available in two colours: terracotta and lead grey.

Is AluFlash certified?

Yes, AluFlash has been independently certified by BM TRADA. Click here to view the certificate.

What is it made from?

AluFlash is a combination of a highly durable aluminium sheet with solvent lacquer upper surface and an adhesive butyl backing, with high levels of adhesion to prevent wind uplift to prevent water penetration. AluFlash can be used in water harvesting areas as it is nontoxic, this also makes it safer for the user to work with.

Do I need to patinate it once it’s fitted?

No, as it has a lacquered finish there is no need for patination, it will not oxidise or stain in the same way as lead does. This saves time and money for the user and removes the need for more aggressive chemicals on site (patination oil is flammable and should be applied using rubber gloves).

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Have a question?

For any questions or queries about our product ranges and the technical support services we can offer, please contact us using the form below.