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Working with Lead for flashing.

Discussion in 'Roofing and Guttering' started by Ian H, 18 Mar 2019.

  1. Ian H

    Ian H

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    I need to do some stepped Lead flashing over a porch onto double roman tiles so planned to use 300mm Lead.

    My grandad was a builder/joiner and left a well stocked workshop when he died.

    There is some Lead in there 600mm wide and 450mm wide. One of the 600mm rolls has flattened, i’m sure it’s all Code 4 because it’s about 2mm thick.

    So my questions are:

    Would 300mm be the right size for this job?

    Would the flattened roll be still useable or should I weigh in the lot and buy a new roll of 300mm?

    If it’s still useable what’s the best way to cut it into 2 lots of 300mm? If I ran a knife down the middle would it fold and seperate?

    Thanks

    I watched a video on YouTube and this is what I intend to do:
    BAB49E70-6953-4478-9CCE-4D5306BC33B3.png
     
  2. ^woody^

    ^woody^

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    300 may not get you 150 up the wall, the extra for the joints and the cover for across the tiles - which will depend on the profile.

    That image is not correct, as the lead should always go into the trough of a profiled tile. It may work, but it's not right and should not be used as a reference.

    But yes, flattened lead could be used, but it depends what it is like when it is unflattened. Always cut with a Stanley whenever possible.
     
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  3. Ian H

    Ian H

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    Ok thanks.

    So if I measure from the wall to the far side of the first tile ‘hump’ then add 170mm for going up the wall?

    I’ll unroll the sheet and see what’s it’s like.
     
  4. noseall

    noseall

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    As long as you have enough horizontal travel to pass up and over and back down a complete profile then you are in good shape. 150mm vertically is plenty.
     
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  5. catlad

    catlad

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    I'd be surprised if it's 4lb lead if its 2' wide, more
    likely to be 5lb lead ie. code 5 and too good for your porch:D
     
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  6. Ian H

    Ian H

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    Cheeky!! I’ll swap it for a few kit kat wrappers :LOL::LOL:(y)
     
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  7. Nige F

    Nige F

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    Forget this mm lark - measure the lead in inches and weigh in lbs. Code is what used to be Lbs per square foot.;)
     
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