While the roofing material on your home will last for many years, it will need replacing at some point. Knowing when it is time to start thinking about having the roof replaced is just a matter of paying attention to what is going on with it. Some telltale signs will help you figure out what is happening with your roof.
Stand back and look at your roof from the ground. If you can see missing shingles or ones that are slipping and loose, you need to have the roof inspected. Once the shingles start to come loose, it is only a matter of time before water starts to find its way into your home. The shingles that have come loose where covering a seam in the row about it and once they have come off the water has a path under them.
Leaks Inside the Home
When you find a leak inside your home, it is essential to evaluate it right away. If the leak is allowed to continue, the water will rot the wood under the singles and can damage the ceiling, walls, and floors inside your home. Often leaks come from areas around things like the chimney but the only way to know for sure where the problem is it is to get up and check the roof. Hire a roofing contractor to take a look at it. They have the experience to find a leak that could be missed by the homeowner.
Another sign that there is a problem with your roof is a sag in the center of the roof. If the wood under the roofing has started to rot, it will sag over time. The weight of the roofing material will make the problem worse until the roof collapses under the weight. While it is not very common for the roof to collapse, it can happen to have it checked out. If the wood supporting the roof has rotted, it will need to be replaced before new shingles can be put on the roof.
Stripping the roof back to the studs is commonly the best way to repair the damage and rebuild the roof. The roof repair contractor will check the trusses as well to ensure there is no structural damage beyond the plywood. If the job is done correctly, you will not need to deal with the roof again for twenty or thirty years.