Prior to solar panel or PV installation, Melbourne University engaged Cocoon to install a water proof, heat-reflective membrane to the roof of their Dookie Campus near Shepparton.
The PV installation process essentially involves putting lots of penetrations in the roof to fix the panels in place and risks creating water leaks. As such Cocoon returned after installation to reseal the roof and issue a ten-year warranty against leaks.
The other advantage of a cool roof in conjunction with PV is it helps to improve their performance. Solar panels have an optimum working temperature, usually around 25 degrees Celsius. As the ambient temperature rises above 25 the performance of PV typically declines at an increasing rate. A cool roof helps to maintain the right working temperature of PV by keeping the roof micro climate at a much milder temperature than on an uncoated roof.