Roofing Contractor Question Roof Weight Limits Solar Panels are one of the most sustainable and cheaper energy sources and a great way to generate power with no costs.  But when people decide to install a solar panel, one general question for a licensed Fort Smith roofing contractor appears:  will my roof support solar panels? To find the answer to this question, first you have to decide on the size and shape of the solar panel that you want to mount on your roof, because there is a big variety on the market. Then, you can calculate if there are any risks. Usually, a solar panel system weighs 2-4 lbs per square foot (10-20 kg per square meter). After that, you should check the roof age, material and structure, because the right structure should be able to sustain the weight of the entire solar panel system. It would be recommended to consult a roof specialist and a photovoltaic contractor for this job. If your roof isn`t strong enough, it can always be adjusted or reinforced. It is important to do that before you install these solar panels, not after. Among the most resistant materials that can support heavy loads are concrete tiles, which are known for their durability, but also metal, which is able to withstand the additional weight of solar panels. It is very important that you make sure to reduce the distributed weight of solar panels.