I made a post a few weeks ago that made no headway as my explanation wasn't that good. Anyway my garage is at the end of a terrace of garages with a single skin brick wall and corrugated asbestos roof. I have found the damp problem I had originally posted about. The asbestos roof is pourous the bottom of it is soaking wet and it's also dripping in places. What can I do as I use it as a workshop type area with tools and bit's and bob's all over the place, that I obviously don't want getting wet/damp.