In article ,
Drake wrote:
Can anyone recommend some kind of sealant or mastik suitable for
sealing cracks and joins in lead flashing?

Joints should be made in such a way as they don't leak. Cracks usually
mean poor workmanship - too long continuous lengths.

Why not simply replace it? Lead flashing is well within the scope of DIY,
and if done properly should have an extremely long life.

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*Gargling is a good way to see if your throat leaks.

Dave Plowman London SW
To e-mail, change noise into sound.