When designing a passive solar building, the roof plays a crucial role in maximizing solar gain and energy efficiency. Factors such as orientation, pitch, materials, insulation, overhangs, and vents must be considered to ensure optimal performance. Common roof shapes used in passive solar design include gable, shed, hip, and butterfly, and a combination of shapes can also be used. The installation of solar panels on a roof may require specialized racking systems to achieve optimal tilt and size. Material choices for the roof should take into account reflectivity, emissivity, and insulation properties to maximize energy efficiency.

LESSON: roof for passive solar house