How to install photovoltaic panels in a foam house
Solar installers steer clear of this Passive House retrofit and the owner figures out why. By Scott Gibson | May 17, 2021. This drawing shows a roof assembly with exterior rigid foam, which has been enough to discourage solar installers from attaching panels. Illustration courtesy Kaster.
Solar installers steer clear of this Passive House retrofit and the owner figures out why. By Scott Gibson | May 17, 2021. This drawing shows a roof assembly with exterior rigid foam, which has been enough to discourage solar installers from attaching panels. Illustration courtesy Kaster.
If you currently own a home or building with a sprayed polyurethane foam (SPF) roofing system and would like to install a PV solar system, there are a couple of ways this can be done, however the best way is to re-spray the areas where the solar standoffs have been installed with SPF.
The first step in planning your solar panel installation is to evaluate your roof’s condition and suitability. In the Northern Hemisphere, a south-facing roof pitched between 30 and 45 degrees is considered ideal for solar panels. Your roof should be in good condition and able to support the additional weight.
Now that we’ve covered the basics of connecting solar panels to a roof, it’s time to find a place for the panels. The most obvious feature we’re looking for is large, uninterrupted roof space. Bigger chunks of roof are easier, and cheaper, to install solar panels.
In this guide, we will provide you with a step-by-step process on how to install solar panels on your home roof. Additionally, we will explore the benefits of solar panel installation, pre-installation considerations, required components, the installation process itself, and whether a permit is needed.
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