Mold and mildew on your roof if the underlayment fails you will likely will see it on you ceiling
3
Curled cracked or missing shingles will not longer providing an effective protection this is a sign that roof have aged
4
Paint blistering and peeling do to high temperatures from old roofs High temperatures and high humidity levels can caused moisture to get trapped in to your home
5
Dark and dirty looking roofs may need attention or replaced This are roofs that are covered form algae or fungus they will retain moisture. And creating leaks
6
Flashing issues that are improperly installed around chimney, vents, skylights can also lead to leaks
7
Granule loss shingles will lose the protective barrier on shingles making roof vulnerable
