Solar Roofing Possibilities: The Difference between Solar Panels, Shingles, and Tiles

From Renee on November 5th, 2007 in Green Remodeling

There are several reasons why you might be interested in harvesting solar power. It could be the reduced amount on your electricity bill. Or a belief in clean, non-polluting energy. Or the government rebate. Or the fact that the money you spend on equipment may come back to you in savings within 5 to 7 years. The list goes on. Whatever your reasons, you’ve now got a decision to make. Solar roofing has come a long way since 1954, when the solar panel was invented. Here are some of the differences between the traditional panel and the fancy newcomers: shingles and tiles.

Solar Roof Panels

• Photovoltaic devices are housed in metal frames, which are mounted to the roof. This requires puncturing the roof to bolt the technology down.
• Are frequently shaded by upper roof tiles, reducing sun exposure.
• Reliable and time-tested.
• Utilizes the same silicon-based PV technology as shingles and tiles.
• Typical installation cost is around $8,500, comparable to that of shingles and tiles. To get more details on pricing ranges, contact a certified solar contractor for a free estimate.

Solar Roof Shingles

• Take the place of the original, asphalt tile, and can be stapled directly into the roofing cloth.
• Are an average of 12” wide and 86” long, with an exposed area of 5 inches when stacked.
• Take less space and can be positioned for optimal sun exposure.
• Flexible control over placement, number of shingles, and desired power range/cost.
• Average power output is 50 watts.
• High aesthetic quality for homeowners because they can be mistaken for traditional shingles.
• Installation costs starting at around $10 per watt and go up from there.

Solar Roof Tiles

• Uses interlocking technology to attach to existing tiles without roof penetration.
• Has a seamless look that fits into the shape of the roof.
• Individual tiles can be removed without disturbing surrounding material.
• Adds a layer of protective insulation against UV rays and weather damage.
• Weigh about 2.5 lbs per square foot.
• Typically blue in color.
• Durable and easy to maintain.
• Similar to shingles, average power output is 50 watts.

Now that you’ve benefited from a basic comparison, go to the makers with your questions, or call a certified solar contractor. Solar roofing technology is available through companies such as Atlantis Energy, Uni-Solar, LEED Pro, Sharp Electronics, Sun Electronics, PowerLight, and General Electric.

More about Solar Power:

• Produce Your Own Electric Power
• A Building Focus on Solar Roof Tiles