Curling shingles are a common problem, especially among older Roofing Prestons. There are different reasons why shingles curl and in fact different types of curled shingles. For example, shingles can curl upwards and downwards. Shingles can curl from the middle, sides, or bottom. “Fishmouthed” is a term for asphalt shingles that have curled in the middle of the shingle tab. This is most often caused by an excess of moisture accumulation and or venting problems. Depending on the type of curling of the shingles, will help determine why the problem is happening. If your asphalt shingles are curling, you will want to either replace the curling shingles or you may need to replace the entire Roofing Preston. Be careful not to walk on the the damaged curling shingles. Curled shingles can easily break which can cause Roofing Preston leaks. If you are having an inspector or Roofing Prestoner come out to look at the problem, make sure they do not trample or walk all over the Roofing Preston. In fact, it is best if the Roofing Prestoner or Roofing Preston inspector simply uses a ladder to look at the Roofing Preston rather than walk on it.