What is bossing sheet lead?

Bossing is the method used to shape and form lead sheet into complex shapes and joints without leaving tool marks or causing any significant reduction in the thickness of the metal. Welding is the alternative method for shaping lead and can also be used when sheets need to be joined together.

Do you need flux to weld lead?

The welding of lead is similar to welding of other metals except that no flux is required. Processes other than gas welding are not in general use.

How long can a lead valley be?

Lead sheet for lead flashing should be no longer than 1.5 metres. If the lead is cut any longer it could lead to splitting of the lead work due to expansion and contraction.

Can I stick lead to lead?

CT1 can affix lead to brick or any other base material with a formidable bond strength of 265 N/cm2. CT1 can adhere onto a wet surface with no difficulty yielding a superb bond for many years. CT1 has a 350% elongation break so therefore providing a strong long term bond and in many situations a permanent one.

Can lead be TIG welded?

yes you can weld lead with a tig set,but isnt easy,even at the lowest setting you cant hang around or you will just blow thru,did a couple of slate adaptors,in the workshop,for where the soil pipe goes through the roof,only used tig because the porta pack had run out of oxy,as for doing it outside,i.e on a roof, forget …

What width lead flashing do I need?

The minimum recommended depth for lead roof flashing to be set into a chase is 25mm, but remember that this is roughly a quarter of the width of the remaining mortar. This is fine unless the brickwork becomes unstable, which may result in a need to reduce the depth.

How wide should lead flashing be?

What size are lead soakers?

Soakers are traditionally made from code 3 lead sheet (1.3mm thick) but could equally be made from code 4 lead sheet (1.8mm thick) but should not be thicker, as the thicker the material the more the soaker will affect how the tiles and slates lay in an array.

What kind of skills do lead sheet workers use?

It covers basic bossing and welding, the two skills most commonly used by today’s leadworkers. Bossing is the method used to shape and form lead sheet into complex shapes and joints without leaving tool marks or causing any significant reduction in the thickness of the metal.

What’s the best way to shape lead sheets?

Bossing is the method used to shape and form lead sheet into complex shapes and joints without leaving tool marks or causing any significant reduction in the thickness of the metal. Welding is the alternative method for shaping lead and can also be used when sheets need to be joined together.

How is patination oil used in the lead sheet industry?

NEW FORMULATION Patination oil specifically developed for the industry by Calder on behalf of the Lead Sheet Association, minimises unsightly staining and imparts a pleasing appearance to newly applied lead sheet and flashings. Occasionally the patina formed on lead looks patchy and unattractive.

What should the fall of a lead sheet be?

All lead sheet must be laid on a minimum fall of 1:80 or just over 1 degree. Failure to do this can result in ponding water which may find its way into the fabric of a building. 7. Clipping There are so many instances where we see lead flashings or other edges of roofing, cladding and weathering’s missing any form of restraint to their free edges.