Setbacks in the context of a roof refers to the distance between the edge or perimeter of the roof and certain features or obstacles. Setbacks can be made visible if you toggle on View setbacks?. The setback dimensions on all sides or any one particular side can be manually adjusted.

In solar PV design, setbacks are important because it affects the available space for installing solar panels and influences the efficiency and performance of the solar PV system. Setback considerations include:

1. Edge Setback: This refers to the distance between the solar panels and the edge of the roof. It is essential to maintain a setback to ensure that solar panels are not too close to the roof edge, avoiding potential issues such as shading, water runoff interference, or safety concerns during installation and maintenance.

2. Roof Pitch Setback: The pitch or slope of the roof can affect the placement of solar panels. Setback considerations account for the space needed to accommodate the solar panels at the desired tilt angle, taking into account both the pitch of the roof and any applicable local regulations.

3. Fire Setback: In some jurisdictions, there may be setback requirements related to fire safety. This could involve maintaining a certain distance between solar panels and the roof's edge or other potential fire hazards.

4. Aesthetics: Setback can also play a role in the aesthetic integration of solar panels into the overall design of the building. Proper setback ensures that the installation looks visually appealing and fits seamlessly with the architectural elements of the structure.

When designing a solar PV system, engineers and installers must consider setback requirements to optimize the use of available roof space while complying with safety regulations and maintaining system efficiency. Careful planning and adherence to setback guidelines contribute to the long-term performance and reliability of the solar PV installation. Additionally, understanding setback regulations and local building codes is essential to ensure compliance with legal and safety standards.