Arfa Daily wrote:

Or of course as lead flashing on every house ever built, or lead guttering,
as is found on many old - and even ancient - buildings, and has been there
for hundreds of years, being 'dissolved away' (ha!) by the rain for all that
time, including the several decades of bad-arsed acid rain, that we had in
the last century ...


Some US homes have a sacrificial strip of Zinc along the ridges on
roofs to kill mildew.


--
Greed is the root of all eBay.