Why Your Roof Isn't Fully Covered with Panels
Even if it looks like more panels could fit on your roof, installations must follow strict safety and building code requirements. These rules ensure firefighters have safe access to your roof in an emergency.
Fire Access Pathways Are Required
Codes generally require clear pathways so fire crews can safely reach, ventilate, and work on the roof. Common pathway requirements include:
3 ft. setback on the gable end
18 in. ventilation setback at the ridge
These clear zones cannot be blocked by solar panels.
Your Local Authority (AHJ) May Require More Space
Every jurisdiction can adopt its own version of building and fire codes. Some AHJs require:
Larger ridge setbacks
Wider access pathways
Additional spacing near hips, valleys, or chimneys
Your system was designed to comply with the requirements specific to your address.
Safety and Code Compliance Always Come First
Even if the roof visually appears to have room, panels can only be installed in areas that meet structural, electrical, and safety standards.