On Nov 18, 5:50*pm, Clive George wrote:
I've got a slate roof with some slates missing. It needs properly
looking at, but that may take some time. In the meantime, has anybody
got any ideas on a suitable patching technique? Ie what to patch with,
how to attach it? I think there's about one lath showing.

(I've got safe access to the roof from the outside, none from the inside)..

Flashband. You might need a heatgun this weather to warm it up to
make it stick. Sticks like **** to a blanket.