A leaking roof causes more trouble than an annoying “drip drop” from your ceiling; it can damage your attic insulation and roof deck and lead to mold and mildew growth and reduced energy efficiency. Roof leaks can be due several causes, all of which will require the immediate assistance of a professional roofing contractor. Here are some common roof leak culprits: 1. Loose, Cracked or Rotting Shingles: If your roof is 20 to 30 years old, you may see signs of aging such as cracking or rotting. In some cases, the shingles may come loose and fall to the ground. A weakened outer layer will expose the underlayment; continued exposure to wind and sun can wear the layers away and eventually cause leaks to form. If your roof is in such a condition, you need to have it inspected. Your roof may only need repairs, which will definitely cost less, and, if properly done, can extend your roof’s life for a few years. This is enough time to prepare for a scheduled roof replacement. ...