Residential Solar Installations
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Types of Residential Installations:
Roof MountAsphalt Shingle
- Most common type of installation in Georgia
- Typical racking components: Flashing, Stand off, rails
- Solar Racking placed onto roof after shingles are installed
- Lag bolts are screwed directly into the rafters every 2 feet
- Solar panel lay flat (flush) on the rails and are secured
- Just about any roof angle can be used.
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Standing Seam
- Also common in Georgia
- Least expensive type of mounting
- Flat mounted solar array
- Panels can be tilted at higher angles
- Very few roof penetrations needed
- Solar panels clamp onto the seam
- Typical Racking Components: Clamp, PV Kit
- Ground
Mount
Pile Driven or Encased Concrete
- Slightly more expensive due to additional engineering
- Need more space due to angle of the panels
- If space is available you can build a larger array
- Shading becomes a factor since array is close to ground
- Depending on size of array there may be permitting issues
- Easier to clean and maintain on the ground
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Residential Solar
What to Look Out For:
Roof Mount | Old Asphalt Shingles - The newer the roof the better off you will be. The panels are warranted for 25 years. How about your shingles? | Shading - A shading analysis will need to be done to ensure that throughout the year the trees in your yard will not interfere with the solar production. |
Roof Warranty - You want to contact your roofer to make sure they will honor the warranty. | HOAs - Home Owner Associations don't have to allow solar in their neighborhood. Check with your HOA's architectural committee before calling a solar contractor. | Historical Societies - Same as HOA's, if you are in a historical district check with your city's representative first. |
Ground Mounts |
Expense -Typically more expensive, need more engineering time to make sure it is done right. |
Space -Need more space. Ground arrays are built at steeper angles so there needs to be more space between the racks |