1. Missing Shingles
Though there are different signs of roofing problems, one of the most common is missing shingles. If you see shingles on the ground or bare spots on the roof, these are likely signs that you need a new roof.
Hire a professional roofing company to help you determine the best course of action. While a couple missing shingles can be repaired, it is best to replace the roof if there are many that have fallen off. Similarly, if the shingles are cracked or warped across the roof, this means that they are no longer protecting the boards underneath.
2. Sagging Means You Need a New Roof
If your asphalt roof is about 20 to 30 years old, your roof may begin to sag and droop. When this happens, all of the materials of your roofing system will need to be replaced. A drooping or sagging roof usually means that there is water trapped under the shingles and the boards are rotting. If left unchecked, the roof is at risk for collapse.
3. Moss Growth
If you see moss, mold, or any type of fungi growing on your roof, these are signs of moisture in the roofing materials. The growth can usually be removed with a stiff brush, but the fact that there is enough moisture for it to grow in the first place means that there may be other water-related damage.