The spacing between solar system roof hooks can vary depending on various factors such as the type of mounting system, the weight and size of the solar panels, and the local wind and snow loads. These factors will determine the structural requirements and the recommended spacing between the roof hooks.

It is essential to consult the solar mounting  manufacturer guidelines or work with a professional solar installer who can assess your specific rooftop conditions and provide the appropriate spacing recommendations. They will consider factors such as roof pitch, roof material, and the load-bearing capacity of your roof when determining the optimal spacing for the solar roof hooks.

In general, the spacing between roof hooks typically ranges from 4 to 6 feet (1.2 to 1.8 meters) for typical asphalt shingle roofs. However, this can vary, and it's crucial to follow the specific recommendations for your chosen mounting system and the requirements of the local building codes.

By following the manufacturer's guidelines or consulting with a professional, you can ensure that the spacing between the roof hooks is appropriate to provide sufficient support and stability for your solar panel installation while maintaining the structural integrity of your roof