Cold Pack. As a rule, spray foam doesn’t seal or dispense very well in cold temperatures — but there’s an exception: Hilti’s CF 512 Cold Weather Foam is designed for temperatures as low as 30°F. The cans screw onto standard dispensing guns. A case of 12 24-ounce cans costs about $175. Hilti, 866/445-8827, us.hilti.com.

Antiperspirant. A sweaty toilet tank is a maintenance headache and a menace to floors and framing. A 109-503RP Toilet Anti-Sweat Valve from B&K can help. The bronze valve mixes a little hot water into the tank, which raises the overall water temperature and stops the sweating. It can be connected with threaded, sweat, or compression fittings...

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