Could I also point out to Peter Dunn that there are probably no thatched buildings left from medieval times, and certainly there were no combined wheat reed (CWR) thatchers then, because there was no CWR, because there were no CWR combers (which were driven by steam power prior to tractors). And I'll bet there probably wasn't much wheat for thatching, as the material then was usually straw.
See the problems us thatchers have]
Isle of Skye
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