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While the snow may have already melted off peaked roofs, snow and ice can remain longer on flat roofs. Those roofs are designed to be waterproof, but if you already have a small leak, it can turn into a big one during a thaw, said Mike Kozlowski of the Kozlowski Co., a roofing company in Tallmadge, Ohio.
Make sure the drains on the roof are open, so melting snow can escape easily, he said. It’s OK to remove snow and ice from the roof if you can, he said, but don’t chip off the ice. You could cause further damage.
Check for faucet leaks
If you’re tempted to wash your car at home during a thaw, do so with caution, Mackin said.
The stem leading to your outdoor faucet can break if water freezes inside it, which will cause a leak when you turn the faucet on, he said. But since the leak is indoors, you might not even be aware of it.
Mackin suggested that when you first turn on an outdoor spigot after a cold spell, go indoors to check for visible water and listen for leaks inside the wall.
If you have a freeze-proof faucet, you can just shut off the faucet to stop the leak, he said. For other types of faucets, you need to shut off the water supply leading to the faucet.