Homeowners often suspect that they have a leaky roof, when they see water marks on a second floor ceiling or roof. If these are small, sometimes a homeowner will ignore them for awhile. That’s a mistake, because once a roof starts leaking, it doesn’t stop on its own. Often the wind has to blow from a certain direction for the water to spill under a loose shingle. But over time the shingle will only loosen more and make the leak bigger. The best thing to do is to call one of the roofing Contractors in Billings MT as soon as the water damage is found.