Your home's roof is one of its most important features. A roof protects your home against the outdoor elements and insulates it against seasonal hot and cold temperatures. However, roofs don't last forever and need occasional replacement. If you're wondering whether you need to hire a local roofing company to replace your rooftop, here are four signs that suggest you should.

Old Age

A roof has an expected service life and needs to be replaced before that expected service life reaches its end. According to State Farm, metal roofing lasts between 40 and 70 years, while an asphalt roof lasts about 20 or 30 years. We've seen that asphalt roofs are the most popular among homeowners by a very wide margin. If you have one that's about 20 years old, it's at or near the end of its service life and should be replaced soon.

Leaking Rooftop

Preventing leaks inside your home is one of the primary purposes of putting up a roof. When it leaks, your home is jeopardized by moisture and water intrusion that weakens the roof and its support structure. This could cause mold and mildew growth. Instead of placing pots and pans to catch dripping water during rainstorms, you should contact your local roofing company to inspect the roof and fix or replace it.

Sagging Roof

A sagging roof is a sure sign of major problems that likely require a new rooftop. A sagging roof indicates the underlying plywood and support structure has weakened and begun to rot due to water and moisture contamination. A local roofing company can inspect the roof to determine the extent of the problem and replace it when necessary. Delaying the service makes it more likely the roof will collapse under the weight of ice and snow when the home is located in a colder climate.

Moss Growth

The growth of moss is never a good sign for rooftops. Moss growth means the roof is allowing moisture to enter and saturate it. As mold spores collect on it after being blown around by the wind, they take root and start to grow. Replacing the roof will get rid of the mold and its underlying causes.

Have you noticed any of the signs above? If you have, then it's imperative you seek roof replacement services as soon as possible. Call or visit David Martin & Son Roofing today to learn more about our services or get started with a new roof.