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Domestic solar energy systems are mostly installed on the roof because that is where they would usually get the best sunlight exposure. That being said, you may have concerns about whether the panels causes damage to the roof. Following are a few facts so you will know from the start what’s likely to happen if you choose to install solar panels onto your roof.

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Nearly all roofs are made to withstand at least eight to ten pounds per square foot of weight above and beyond that of the roofing material. That’s usually more than sufficient to bear the weight of the solar panels. However, each house represents a unique installation project. Your local building inspector or a professional solar panel installer should be able to give you an accurate assessment of your roof’s capacity to bear the weight of your solar power system.

The solar panel mounts are usually fastened to the beams. This kind of installation is very stable and provides better load distribution than attaching the mounts to roof decking. As rooftop installations have taken place for over 30 years, professional installers are knowledgeable regarding the best methods to ensure stability and avoid damage.

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However, you need to consider the age and condition of your existing roof prior to scheduling your solar panel installation. Since the mounts are placed over the roofing material, they would have to be taken off and reinstalled if you decide to replace your roof. So if you’re thinking of replacing your roof in the next five to ten years, consider doing it prior to getting your new solar panels to avoid the expense of removal and reinstallation.  

Of course, if you are still have concerns about installing solar panels on your roof, you may be able to use a ground mounted system. The same criteria apply to choosing a solar panel array location whether on a roof or on the ground. They must get sufficient sunlight throughout the day to produce the power that your home needs, and it must be devoid of obstacles that it from the sun. If you have such a location on your property, it may be a good alternative to roof installation.

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This entry was posted on Sunday, November 8th, 2009 at 5:11 am and is filed under Home & Garden Improvements, Home Renovation. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.