The cat (mine, not this one!) has been nagging me to find the table again. She shoves thing off and disturbs the strata so I can't find anything. With the record cold today, it seems like a good day to do that, as well as reorganize the loft (heat rises, after all!).

My issue with the frozen hot water pipes has not re-occurred, so I'm sure that it was the gale force winds and wind-driven snow from that nor'easter that caused the problem. The crack between the sills isn't wide enough for me to get any real insulation around the exposed bits, although I did tuck as much into the crack as I could, so the fact that it was a special set of circumstances that probably won't repeat makes me feel better.