Roof Flashings

Lead roof flashings are specifically designed to provide a durable and weatherproof seal. Protecting your roof and preventing water ingress. Beyond their practical function, certain designs, such as scalloped lead flashing, are carefully crafted to enhance the aesthetic appeal of architectural structures with their decorative touch.

Leadworx fabricates a range lead flashing products. Made using 100% recyclable Code 4 sheet lead milled to British Standard BS EN 12588.

What are the rules for lead roof flashing?

In the UK and across the world, rules for lead roof flashing to ensure safety, durability, and effectiveness in protecting buildings from water ingress. Lead is a highly durable material, but incorrect installation can cause issues such as leaks, corrosion, or structural damage.

In the UK, lead roof flashing must adhere to guidelines set by the Lead Sheet Training Academy (LSTA) and British Standards (BS EN 12588). The rules show that lead must be of the correct thickness, typically between Code 3 and Code 5, depending on the application. Flashing should be installed with sufficient overlap to ensure water tightness, typically 100mm for most roof pitches. 

Fixings must allow for thermal expansion and contraction to prevent cracking, with provisions for free movement such as sliding clips. Proper sealing with lead sealant or mortar is essential, and lead must not be over fixed or excessively long to avoid buckling. Additionally, health and safety standards must be followed, particularly for working at height.

What are the benefits of using lead for roof flashing’s?

Lead is an ideal material for roof flashing’s due to its durability, weather resistance, and flexibility. Allowing it to fit complex roof profiles while accommodating thermal movement without cracking. With a lifespan exceeding 100 years, it offers excellent long-term value and aesthetic appeal, developing a natural patina over time. Additionally, lead is sustainable and recyclable, making it an environmentally friendly choice. With a proven track record in both traditional and modern roofing applications.