DESCRIPTION

Roll cast lead has been in use in the construction industry for a wide variety of applications for many hundreds of years.  Architects, engineers, contractors & property-owners are attracted to it for its durability, flexibility (malleable), its’ superior corrosion-resistance and low maintenance requirements.  When installed correctly it provides a high visual aesthetic for both traditional and contemporary buildings.  Also known as milled lead, rolled lead is made by rolling a solid slab of lead between closing rollers on a rolling mill. Rolled lead sheet is usually made to BS EN 12588 specification.

Flashings can be formed around all areas where water ingress is high risk such as chimney base & rooftile abutments, roofing tiles and brickwork of a building. Due to the malleability of the material itself and the consistency of its thickness, correctly installed lead will move with a building, expanding and contracting, coping with the wide range of temperature fluctuations a building can experience. Flashings made from plastics and bitumen can be susceptible to cracking under UV-rays becoming brittle over time. This can lead to water ingress, damage to the roof structure itself, severely reduce K-value of the insulation and cause internal damage to the building. Flashings around chimneys, dormer or bay windows, parapet cappings, gutters, parapet gutters and valley gutters in particular are specifically designed to keep out water and should always be formed using a trusted and tested material that will not require maintenance or replacement for many years to come. Lead is by far the best material to install.

FEATURES AND BENEFITS 

• Durable and Malleable
• Maintenance free for many years
• Can be used in a variety of roofing applications
• Code 4: nominal weight of 20.4kg per m2.

What are the differences between the many types of ‘Codes’ of lead – what do they mean and what are they used for:

Code 3 Lead is 1.32mm thick (labelled Green) & has a nominal weight of 15.0Kg per m2 - Roll cast Lead flashing is used for soakers only.

Code 4 Lead is 1.80mm thick (labelled Blue) & has a nominal weight of 20.4Kg per m2 - Roll cast Lead flashing for soakers, flashings (Hip, Ridge, Apron, covers, Chimneys), pitched valley gutters, bay tops & canopies, dormers & vertical cladding.

Code 5 Lead is 2.24mm thick (labelled Red) & has a nominal weight of 25.4Kg per m2 Roll cast Lead flashing for flat & pitched roofing, soakers, flashings (Hip, Ridge, Apron, covers, Chimneys), pitched valley gutters, bay tops & canopies, parapet – box & tapered valley gutters, dormers & vertical cladding.

N.B. ALL LEAD WEIGHTS ARE SUBJECT TO A +/- 5% TOLERANCE

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