Translations:Mounting system types/5/en

• A module should be at least 1cm from a roof surface for optimal performance. Less distance will have a significant impact on performance and more distance will not greatly increase performance.
• The space between modules in an array will typically be determined by the mounting system that is used. At least 10mm between modules is recommended to permit expansion, contraction and adequate ventilation.

IJIRSET - Optimization of Air Gap Required Below Solar PV Modules,Mounted on Metal Sheet roof-tops, through Thermal Analysis and Experimental Verification. http://www.ijirset.com/upload/2017/october/75_Optimization.pdf