The number of customers who have owned a solar system through its full lifecycle.
Installing solar panels on older roof.
In this video this old house energy expert ross trethewey installs solar panels.
Before you install solar panels on your asphalt shingle roof it s important to identify the type of shingles you have.
On the roof lay out the locations of the stanchions that will support the solar panels.
Solar shingles and solar tiles.
If your roof is old please put a new roof on before installing solar on it.
Screw each stanchion through the roof and into a roof rafter.
You ll need to weigh the convenience with the cost to see if it s a better option to just replace the roof before the panels go up.
Ideally you have records from your last roofing job that identify the manufacturer and product line of your shingles so that you can look up the warranty information.
For standing seam roofs the solar panels simply clamp onto the seam where two panels are connected.
If the roof structure is old you may need to get a structural engineer to verify the load imposed by the solar system is adequate.
Putting solar panels on your roof costs as much as a car but the cohort of experienced buyers is far far smaller.
If you don t have that handy contact your roofer.
So are thousands of other diyers.
The typical roof lasts about 20 30 years.
The former can be installed on top of your existing roof while the latter serves as a replacement for concrete tiles.
When installing conventional solar panels on asphalt shingles the solar panels are simply bolted through the shingles to the roof joists providing a very strong sturdy attachment.
Since they don t offer a non photovoltaic option they are integrated with conventional shingles and tiles.
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Installing solar panels on your roof is also a wonderful way to generate electricity for your home and business as well as the grid without increasing your impact on the environment.
While you may be able to squeeze out a few extra years on an older roof the best scenario for installing solar panelsis on a roof that is in good condition and will not need replacement for a while.
Also be sure the stanchion flashing fits beneath the roof shingles to prevent leaks.