Ice-dam dynamics on glass tiles: do Solar Roof surfaces change melt/freeze patterns vs asphalt or metal—when are heat-cables or design changes justified?
Okay, so solar roofs are pretty good at shedding snow, but you might still get ice dams where the solar panels meet the edges of your roof or the gutters. Heat cables can help in certain spots, but they’re not a total fix. Really, the smartest way to deal with this is to make sure your attic is well-insulated and has good airflow. That way, the roof stays cold, and ice dams won’t even get a chance to form.
Glass tile solar roofs reduce ice dams vs. asphalt/metal due to smoother surfaces and slight heat, but don’t eliminate them. Heat cables help severe cases; better insulation/ventilation is ideal.