Should I replace my roof before installing solar panels?

A few items to take into account when considering whether or not to replace your roof before you switch to solar: the roof’s age, its condition, and the costs involved for repairs or replacement.
There are a few signs you may know about already to determine the condition of your roof without even climbing up a ladder. Those signs include:

• Leaks or stains in the attic or walls
• Mildew
• Dark “dirty-looking” spots on the roof
• Excessive energy costs due to insufficient ventilation

Professional inspection

If you are unsure or haven’t seen any of these signs, that’s probably a very good thing. Either way, you’ll definitely need a professional to assist you in further assessment. Your solar contractor can recommend a good local roofing company to work with and most reputable roofing contractors provide free estimates, so there should be no additional cost for the assessment.

http://www.thesolarco.com/should-i-replace-my-roof-before-installing-solar-panels/