Unless you’re building a solar farm, the most common place to install your solar panels is on your rooftop. But, it is not as easy as simply putting them on top of your house. There are things you’ll need to consider before installing a rooftop solar power system.
Roof Orientation and Tilt Angle
The primary thing to consider is your roof’s orientation. For homes in the southern hemisphere, your best choice is due north, but it will differ from house to house since most are not made for solar panels. The second ideal orientations are northeast- and northwest-fronting roofs. These are followed by east and west. Anything lower than that will result in an under-efficient performance.
Tilt Angles can also affect the performance of your system. Beyond the tropics, 32 degrees is the ideal roof tilt angle, while 20 to 40 degrees will still do. If your roof is angled lower than 20 degrees, you’ll need to use mountain breaks before installing the panels.
It’s an obvious factor to consider when you’re installing solar panels on your roof. Normally, a single polycrystalline or monocrystalline panel measures around 1.6 meters by 1 meter. The number of panels will also depend on the amount of electricity you’ll need at home. If you don’t have space on your house’s rooftop, you can use a nearby structure, such as a garage or a garden shed.
If your house has either a tile roof, slate/shingle roof, or a corrugated metal roof, you’ll have to make sure that there will be no gaps during the installation. Missing to spot them will result in a leakage of your roof top. Mounting solar panels on these types of roofs is possible. In fact, they’re the standard types for rooftop solar panel installers.
If you have an older roof, you should consider replacing the shingles
first before installing the solar panels. Consider renting a roofing dumpster to get rid of all the old shingles since they are extremely heavy.
Types of Mounting Systems
a. Universal Mounts
Typically, universal mounts are for small- to medium-sized arrays. Flash mounts can also be used for arrays with only 1-2 solar panels. The universal mount allows you to adjust the tilt angle of your array.
b. Roof-Integrated Photovoltaics
If you’re replacing your rooftop or building a new house, we suggest that you should consider choosing photovoltaic roof tiles or shingles for your solar power system. It will definitely save you a great deal of money, especially when you decide to replace your roof/build a new home and buy new solar panels at the same time.