Yes, it has.
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17 years ago
harvesting rainwater from a lead roof
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17 years ago
That will be why lead on a roof has such a *very* short life?
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17 years ago
Tallow isn't a flux - quite the reverse. You use it on the wiping cloth to stop it sticking to the molten lead.
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17 years ago
Indeed, hence the importance of properly patinating any freshly cleaned lead roofwork. Bare lead will pinhole if left untreated (actually it probably won't now - back in smoky '50s cities it was a different matter).
Once patinated though, it's a different story - the surface is no longer bare metallic lead. A lead storage cistern is an issue, but rain simply passing over a lead roof isn't going to collect any measurable lead content.
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17 years ago
The message from "Mary Fisher" contains these words:
Dunno - I haven't listened for ages.
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17 years ago
I was being sarcastic...
Actually loss of mediaeval lead flashing is usually down to thieves..
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17 years ago
First time for everything - she is speechless! ;-)