Working with Lead for flashing.

[Ian H]

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:

 

[^woody^]

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.

 

[Ian H]

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.

 

[noseall]

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.

 

[catlad]

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

 

[Ian H]

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

Cheeky!! I’ll swap it for a few kit kat wrappers

 

[Nige F]

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