Things Your Roofer Might Check When Determining If Your Roof Is Ready For Solar Panels

Posted on: 29 December 2020


If you want to switch to solar power and the solar company has determined your roof gets enough sun, the next step is to have your roof inspected so it can be repaired or replaced if necessary. Here are some things your roofing contractor may check and the work your roof might need before solar panels can be put on your home.

The Attic Ventilation

One reason the roofer checks your roof is because it's best to avoid having to remove the panels to repair roof damage later if possible. If your attic doesn't have proper ventilation, your roof ages faster.

Improving ventilation could be a matter of installing new vents. The correct amount of ventilation can be calculated based on the size of your roof so your roofer can tell for sure if you have enough ventilation or need more vents added.

The Condition Of The Deck

Solar panels are attached to the deck of an asphalt shingle roof, so it's not possible to do roof repairs in the area of the panels unless the panels are removed. The roofer will probably check the deck carefully to make sure the plywood and rafters have no damaged areas that need to be replaced.

If the wood is rotting due to water damage from bad roofing, the damage may continue to spread, and then you have to take the panels off later to make repairs. The roofer wants to make sure all wood parts of the roof are in good shape so they last as long as possible. Simply replacing the roofing shingles isn't enough if the deck has water damage. The rotted areas of the deck have to be replaced too.

The Flashing

The flashing around the chimney and vent pipe might not be directly under the panels, but if the flashing develops a leak, water can roll down the roof and cause damage under the shingles that needs work at some point in the future. The roofer can check for rusty areas and loose edges around the flashing and replace it if needed so there is no risk of leaking.

The Shingles

The shingles are checked for damaged areas, the amount of granules left on them, and their overall condition. Unless your roof is fairly new, you may need to discuss options with your roofer when it comes to whether you should replace the shingles or repair damaged ones.

If the shingles are old, your roof will need to be repaired in a few years and the panels will have to come off. You may decide it's better to replace the roof now. However, if the shingles are in good shape, but just have a few problems, the roofer can make repairs and save you the expense of installing new roofing.