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What Do Roofers Need To Know About Lead-Free Flashing?

Wednesday, 19th October 2016

lead free flashing

Why use a Lead-Free Flashing?

Anti-theftLead-free flashings have become popular for 2 main reasons:

  1. The cost of lead has increased massively over the past 5 years
  2. Despite recorded incidences now being on the decline, the risk of lead theft remains.

The opportunity to use a viable alternative for upstand work on roofs removes any such threat, as well as the associated problem of increased building insurance premiums.

Shop Lead-Free Flashing

Do I Need Planning Permission to use Lead-Free Flashing?

Lead alternativesThere will be situations in which only lead flashings can be used to retain a building’s authenticity, most notably those of historic significance and/or with Listed status.

For day-to-day applications, however, higher quality lead-free flashings offer exceptional long-term performance and considerable material and installation cost savings. As a general rule, it’s always best to check with your local authority before any work is carried out as policies differ from one area to another.

What Should I Consider When Choosing Lead-Free Flashing?

It’s worth remembering that the 2 elements of a lead-free flashing that vary markedly in quality are its facing and backing. Higher performance facings offer scope to be stretched by a considerable degree and, in conjunction with a self-adhesive backing such as PIB, enable the product to offer the same detailing qualities and flexibility as lead.

Haus Profi Wakaflex really excels as a lead-free flashing due to its exceptionally strong Butylon adhesive, enabling it to be stretched by up to 50%. On laps, the facing and backing effectively form a chemical weld.

Remember too… There is no standard covering the quality of lead-free flashings, and products using basic oxidised bitumen will not last. Products with BBA certificates can’t automatically be considered to be the same, as some have no backing and rely on a bead of adhesive to maintain contact with the surface.

What are the Benefits of Haus Profi Lead-Free Flashings?

  • Around 75% lighter than lead
  • Can be stretched and cut by knife, shears or scissors
  • No susceptibility to thermal movement so can be laid in full roll lengths without fixing clips
  • No priming normally needed to secure a good bond
  • No need for a lead forming tool

What can I use Lead-Free Flashing for?

Anything on a roof that you would otherwise use lead for - traditional upstand work, forming over deeply profiled tiles, closing off dry valleys, sealing solar panels, rooflights, hips, saddles, pitch transitions and flue penetrations - all in around half the time that lead takes.

About Haus Profi

Haus Profi are experts in lead-free applications. They offer a range of products that are high-quality, easy to use alternatives to lead:

Wakaflex flashingWakaflex is lead flexible, adhesive roof flashing that can be used instead of lead in most modern roofing applications. It's available in a range of colours to suit the roof you're working on.

EasyFlash flashingEasyFlash is a lightweight flashing that can be used on almost any tile or slate roof to seal abutments. Again, it's available in a range of colours.


Haus Profi is a brand of Klober Limited