The waterproofing of the roof after construction of the chimney
remained incomplete, but immediately the following day (17th April, Day 63), the entire chimney was clad in metal.
The photo above shows the base of the chimney in more detail. The sheets overlap with the surround on the outside such that water flows from the walls onto the roof without any chance to penetrate.
The whole installation is completed by a little roof on top of the chimney, preventing rain and snow to enter into the chimney and flood the sitting room. Note also that the edge around the chimney pipe is folded up so that water accumulating around it cannot flow into it. Smartly done, and it looks smart, too. The only thing missing now is a permanent access ladder and platform for cleaning and inspection.
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