Leadax waterproofing solutions

Rethink lead.
Choose Leadax.

High-quality lead alternatives for watertight connections. Lightweight, non-toxic and designed for construction today and tomorrow.

Choose the solution that suits the way you work.
Leadax flashing dressed over roof tiles at a dormer connection
Recycled PVB

Recovered from laminated safety glass

Non-toxic

No heavy metal

Up to 85% lighter

Less physical strain

KIWA & BBA

Independently assessed solutions

Two solutions. One new standard.

Which Leadax suits your work?

Choose familiar installation with Original or self-adhesive flashing with Easy. Available as Easy FA and Easy SA.
Leadax Original lead-free flashing roll
Works like lead SHEET

Leadax Original

For professionals who want to use familiar techniques while choosing a lighter, non-toxic material.

Leadax Easy FA self-adhesive lead-free flashing roll
SELF-ADHESIVE SOLUTIONS

Leadax Easy

Choose the adhesion that suits your work: Easy FA has a fully self-adhesive backing. Easy SA uses two self-adhesive butyl strips.
Why Leadax?

Smarter. Safer. Cleaner.

A different material choice changes the product and the way you work.

01

Smarter

Long rolls and low weight help you work faster, with fewer overlaps and less material waste.

02

Safer

Leadax contains no toxic heavy metal and reduces physical strain during transport and installation.

03

Cleaner

Made from recycled PVB recovered from laminated safety glass and designed to be reused as a raw material at the end of its service life.
Proven in practice

For watertight connections on and around the roof

From valleys to extensions: Leadax is used every day in new builds, renovation and prefabricated construction.

Valleys

For a durable, watertight seal in valleys.

Chimneys

For connections to roof tiles and installation around details.

Dormers

For connections at dormers, roof windows and cheeks.

Extensions

For a watertight connection between walls and flat roofs.

Tools & accessories

Everything for reliable installation

Work quickly and accurately, following the current installation instructions, with the right Leadax tools and accessories.

Pressure rollers

For even adhesion and finishing

Scissors

For quick, precise cutting

Joint clips

For securing Original in mortar joints

High-Tack Sealant

For sealing joints and edges

Experience Leadax for yourself

Feel the difference and discover which solution suits your next project.

Stuart Penrose, roofing specialist and Leadax ambassador

EXPERIENCE FROM THE TRADE

Confidence built on site

“After more than three years of installing Leadax on customers’ properties, I have developed genuine confidence in what it offers. I have never been someone who endorses products lightly.”

Stuart Penrose

Domestic and heritage roofing specialist

Read Stuart’s story →
Sika, Leadax distributor in England

Our distributor in United Kingdom

Leadax is distributed in England by Sika Limited. Contact Sika for product availability and purchasing enquiries.

Sika Limited — Head Office
Watchmead
Welwyn Garden City, Hertfordshire
AL7 1BQ, United Kingdom

Telephone: +44 (0)1707 394444
Email: enquiries@uk.sika.com