With the forecast of Nov 13 being power cut, it gets me to thinking. I'm one of the maint guys at church. Suppose the power goes off, and it's below freezing.
The building is masonry, with some metal truss, and flat roof. Roof is flat rubber, think there is some styrofoam under the rubber. With freezing and rewarming, there is concern about the wall paper might be damaged by condensation when it warms up. But, the big damage is likely to be the water lines. Old copper, in the ceilings and along the inside walls.
Ideally, I'd be able to shut off the water at the meter where it comes in. Use a compressor and blow out adapter to blow most of the water out of the lines, and hope for the best. I do have a small pump, to pump in pink RV antifreeze, but that would likely take a LOT of pink. Ten gallons or more, at the very least.
What else should I be thinking, in terms of damage reduction?