Pv Module Clearances From Roof Edge

Solar panels you want to mount on a roof must have at least 3 inches but 4 to 6 inches is better distance between the roof and solar panels frame.
Pv module clearances from roof edge. Nec 690 defines electrical safety requirements for pv systems. The intent of this brief is to provide code related information about photovoltaic systems to help ensure that what is proposed regarding the photovoltaic product itself including accessories such as inverters and controls as well as their individual and collective installation can be verified as being in compliance with safety related codes and standards for residential construction. No solar pv systems should extend beyond the edges of the roof. How far should the solar panels be from the edges of the roof.
Devices listed and identified for grounding the metal frames of solar modules or other equipment can bond. The reason for this clearance is that it allows air flow under the solar panels for cooling them. A pv installer is allowed to construct the support system mount the modules inverters or optimizers and connect the factory provided module wiring harness plug and play. Depending on where you live different laws exist as to how close solar panels are allowed to be from a roof edge.
Structure as equipment grounding conductor. Get quantity solar panels systems discount. So if you have a 50mm high gap between panel and roof 100mm minimum distance panel from the roof edge. 60mm gap 120mm from roof edge 70mm gap 140 mm from roof edge etc.
Mcs say 600mm building regs is grey one report that it is 300mm another company that thinks its 400mm. Roofs under windows now require 36 inch wide access pathway. Solar electric supply inc a leading solar power system integrator wholesale supplier of complete solar electric systems. Exposed non current carrying metal parts of pv module frames electrical equipment and conductor enclosures must be grounded.
Anybody know the minimum clearance required between pv module edge of roof. Call 831 462 8243 for free quote. In some cases access pathways for roof faces with pv may be on roof faces adjacent to the roof face with pv modules. The remainder of the installation such as panel boards raceways boxes fittings.
Wind will get underneath and weaken the fixings leading to a potentially lethal situation.