Great thread - thanks for taking the time to document it Red. What ratio of Beet to Sugar are you getting?
Today was painting render (or trying to in the rain) to get old barn walls weatherproof before the frost finally finishes off the bricks with split facings this Winter....ahhh the glamour
If the barn contains hay or anything that produces heat and moisture the vapour will go through the wall and condense out on the inside of waterproof paint.
Then it pulls the face of the bricks/render off when it freezes.
Its not usually water getting in that's the problem, its usually* water vapour trying to get out that causes it although if the guttering is knackered it will cause problems.
I'm a big fan of roofs with big overhanging eaves as well but we don't seem to have them much in the UK, possibly due to not having much space in general.
*Not always admittedly.