Here are a few tips to keep your home safe during a freeze.
1: Stop ice-dams
Heavy snow and ice can do a lot of damage to your roof - as it builds up and as it melts. Ice dams are when ice on your eaves blocks water from draining and the water is forced under the roof and into your attic or down the sides of your walls.
To prevent them, keep your attic well-ventilated to maintain a temperature close to that of the outdoors. A warm attic melts snow on the roof, causing water to run down and refreeze at the roof's edge, where it's much cooler. You should also make sure the attic floor is well-insulated so that heat rising into the attic is minimized.
2: Protect your pipes
Frozen pipes are one of your home's major vulnerabilities. To keep your pipes from freezing, wrap your main shut-off valve in insulation. You'll also want to open hot and cold faucets enough to let them drip slowly. By keeping water moving through the pipes, you'll prevent freezing.
3: Seal your drafts
Sealing your drafts can save you 20 percent on your heating bills, according to the Alliance to Save Energy. You can use incense or a candle to test for drafts around your windows or doors. A drifting line of smoke, rather than a straight one, could indicate a problem.
If the putty in your windows is dry and cracked, add newer sealant. Seal any visible cracks with the weather stripping or cloth. But remember, you don't want to completely button up your home. When you have all your heating equipment running, you may need to get some fresh air into that house once in a while.