I've posted many times, as recently as a month ago, about the discoloration on the front of our house, and our desire to treat it. We thought for a while that it was fungus or mold of some sort, althought without an expert chemical analysis it was hard to tell for sure. Rutger and I put a chemical treatment on the house almost two years ago, and the spots have not changed appreciably since.
We thought about painting, and had spoken to one of the archipelago's painters, Krister, about using the traditional slamfärg on the spotty front exposure, in a color that matched the nice silvering along the rest of our house.
However, after some investigating, Krister felt it wouldn't be a good idea to paint over our the järnvitriol we put on the house three years ago. So we were back to square one: it probably isn't mold or fungus (or it it was, it was inert now), and it didn't seem we could paint over it, so we would have to just let it be for the time being.
We headed to the house this summer, resigned to just ignore the discolorations and get on with it. However, like a thoughtful neighbor (and a great builder and handyman), Olle told me he did some investigating about painting over jarnvitriol. He felt it was quite possible to do, so Sooz and I started thinking and googling on the subject once again.
We found a number of interesting things, which we'll save for further posts, as this one is getting a little long!
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