I want to take some slates off my roof and replace them with
with something like plywood for a few months..

Ideas please on what type of plywood to use, and how?

Is there a kind of plastic I can cut with scissors and staple into place
between the plywood and the existing slates?

What sort of plywood is best?
or would caravan aluminium be better?
or what?
What do roofers use?

I plan on screwing the plywood into postion,
and making a hatchway up to the roof so i can
start on patching the roof,
learning how to work with slates and lead,
make a frame for solar hot water,
getting some broken rotten rafters fixed,
etc.

[george]