Flexfast lead replacement roll

Function and compatibility

  • Provides a lead free, watertight seal and effective flashing at all abutments
  • High adhesive butyl bonds permanently to a wide variety of roof coverings
  • Suitable for all pitched roofing applications
  • Suitable for new build and refurbishment projects

  • Cost effective when compared with lead
  • No likelihood of theft
  • Lighter and easier to use than lead
  • No need for specialist lead installers
  • Flexible and stretchable, up to 60% elasticity
  • Strong, adhesive butyl backing

Flexfast is a high performance four layer aluminium flashing roll with excellent adhesion, flexibility and durability making it an ideal replacement to lead for all your pitched roofing applications.

The new Lead Replacement Roll, which has similar aesthetics and rigidity to lead, features an ultra-sticky, UV and age resistant, Butyl adhesive backing to ensure a quick and secure fix, making it a cost saving alternative to the traditional solution. 

Manufactured from creped coated aluminium, the new roll is reinforced with metal grid for strength and rigidity, but it can actually stretch up to 60 per cent, so can be moulded to even the deepest profile tiles.

Length:                     5m rolls

Width:                      300mm, 450mm

Weight:                    300mm – 3.3kg per roll, 450mm – 6.4kg per roll

Colour:                    Umbra Grey RAL 7022

Surface finish:         Texture crepped aluminium sheet

Flexibility:                Longitudinal > 60%

Carrier:                   Crepped aluminium – PET compond

                               Aluminium thickness - 20µ

                               PET thickness - 36µm

Reinforcement :     Aluminium mesh grid

Adhesive:              UV stabilized and ageing resistant butyl

                              Thickness – 2x 0.6mm

                              Width – 295 / 445mm

 Liner:                    Film with overlap in the centre

Installation temperature:  +5°C to +40°C

Temperature resistance:  -30°C to +80°C

Ageing resistance   ≥ 10 years

Adhesion    Within contour tiles, ensure minimum contact adhesion of 50mm.

Coverage    Please refer to the below Technical Specification Sheet for guidance on coverage.

Here at Marley Eternit, we are always on hand to offer practical and experienced support. Select an option below or call us on 01283 722588.