Picking up the twigs, leaves and trash which are blown out on the panel and slicing the branches that include the panel as proper ประสิทธิภาพสูง, เงาบังแผงใดแผงหนึ่งไม่กระทบทั้งระบบ In the situation of your roof that should be put in for a metal sheet Or tiles or whichever is definitely the purlin composition https://bluetechsolarcell.com/solar-rooftop-%e0%b8%82%e0%b8%ad%e0%b8%99%e0%b9%81%e0%b8%81%e0%b9%88%e0%b8%99/