So, you’ve decided to construct a carport. The structure, roofing, and panels on top (because, let’s face it, solar panels are a must these days!). But what if you skip the roofing material, like corrugated metal, and go straight to installing solar panels? Is this possible?
Yes, it is possible! However, there are some important details to keep in mind.
Structural Precision
The structure under the panels can be made of wood or steel. However, it must be geometrically perfect. While roofing materials can tolerate minor imperfections, solar panels are perfectly flat and will reveal any flaws in the structure’s geometry immediately.
Sealing Joints
Sealing the seams between the panels is done with T-shaped aluminum profiles on a sealant.
Shading Considerations
If the panels are all on one string, you must consider shading. The most common challenge is the area where the carport meets the house. Anything not facing south will be shaded near the house.
Light Transmission
Panels are not entirely opaque. Standard panels on a white backing allow about 20% of light through, while bifacial panels allow around 40%. This can be a disadvantage (your black car may get hot) or an advantage (the kitchen next to the terrace won’t be too dark).
Seal After Initial Installation
Seal the joints between the panels a couple of weeks after the initial installation. Wait, tighten the bolts, then seal with the T-profile. This is especially true for steel carport structures, which may shift slightly under load in the first few weeks.
Panel Mounting
Attach the panels using the original holes in the bottom frame of the panels—standard clamps will interfere with sealing.
Cable Management
You’ll need to think about where to hide the cables from the panels, as they will be visible here, unlike when mounting on a roof.
Photo expamle
Conclusion
A carport made of solar panels is a great idea, but don’t expect to save much money or effort. However, it will be worth it in the end.
