Solar PV Panels can be fitted to the vast majority of roof spaces and land. The Mounting System is the physical connection between the Solar Panels and the roof system or ground. Compatibility and flexibility in design means that your roof space commercial or residential is almost certainly suitable for a Solar PV installation.
The solar array of a PV system can be mounted on rooftops, generally with a few inches gap and parallel to the surface of the roof. If the rooftop is horizontal, the array is mounted with each panel aligned at an angle. If the panels are planned to be mounted before the construction of the roof, the roof can be designed accordingly by installing support brackets for the panels before the materials for the roof are installed. The installation of the solar panels can be undertaken by the crew responsible for installing the roof. If the roof is already constructed, it is relatively easy to retrofit panels directly on top of existing roofing structures. For a small minority of roofs (often not built to code) that are designed so that it is capable of bearing only the weight of the roof, installing solar panels demands that the roof structure must be strengthened beforehand.
In all cases of retrofits, particular consideration to weather sealing is necessary there are many low-weight designs for PV systems that can be used on either sloped or flat roofs. Most however, rely on a type of extruded aluminum rails. Recently, tension-based PV racking solutions have been tested successfully that reduce weight and cost. In some cases, converting to composition shingles, the weight of the removed roof materials can compensate the additional weight of the panels structure. The general practice for installation of roof-mounted solar panels include having a support bracket per hundred watts of panels.
Integrated roof mounting kit allows the in roof installation of standard solar panels on new buildings or buildings being renovated. The system has the advantage that it fits 95% of solar PV panels available on the market. It can be designed to cover the whole roof surface if necessary, subject to panel size.
Panels can be installed in portrait format or in landscape format. The system can be installed on wood or metal structures and mounted on battens or lathing. It can also be mounted directly on common rafters and can be installed on slopes between 12° and 50°.
Here is a video from our 5 kWp solar PV system in Crosby which was installed by using a integrated roof mounting kit. Click here to see case study – https://www.genfit.co.uk/projects/crosby-sunstation-bipv-and-tesla-powerwall-2/
An on roof mounting kit is usually put together with two horizontal mounting rails that carry one row of PV modules mounted vertically. These rails are fastened to the roof structure using roof hooks or other fasteners. The modules are fastened to the rails using the middle and end clamps.
Here is a video of an on-roof mounting kit being installed at Screwfix in Peterborough. See full case study – https://www.genfit.co.uk/projects/screwfix-solar-pv-installation-chester/
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