Eric, as an experienced roofer i would highly suggest, refering to a Pro!! When dealing with your home there are about three things that need first hand experience!!! And your roof is one of them. A house with a bad or improperly done roof might as well be worthless. The reason being is further problems arrise and may be unknown for years. Water damage, structural rotting, property damage caused by leaking. look into it lots if you decide to go at it, and dont be affraid to call a pro!!