Why is racking important?
Just like any other component of the building process, solar systems must be structurally secure and sound. Many problems can occur if systems are not installed to the structure properly. Even though solar panels are not heavy, they still add a new load to the building/structure it is installed on. When wind, snow or other elements affect the load on the structure, you need to make sure your system will be able to withstand it. Solar panel systems generally are fixed onto a roof and angled to gather the maximum amount of sunlight. Solar panels have a lifetime of around 35 years. Having a racking system that will last as long as your PV system is important to having reliably renewable energy.
Pros of Railless racking
Railless racking procuts are compact, easy to use and cheap to ship. Railless systems are a single assembly, so rails are not needed to attach a PV panel to the roof. This reduces material and installation time and labor. This method is faster to install, fewer tools and requires less training time for crews. Simpler logistics are needed, the parts are small and lightweight, easily transportable and are not prone to damage while shipping like rail systems. Railless systems are more visually appealing than rail-in systems. As the solar industry spreads to new geographic locations, the look of the systems have been gaining importance. Railless systems are small, sheek and designed to be virtually invisible. There are no alignment issues with railless racking systems as there are no rails to align. Usually railless is the cheapest option for racking systems because you don't have to pay for the framing. The PV system is more accessible when maintenance is needed, there are not as many moving parts in these systems making the probability of malfunction less.