Quick Answer
Choose solar flashing that matches your roof type, follows local building codes, and provides a watertight seal to protect the roof and panels. Consider factors such as material, color, and durability. Research and select a flashing that meets all necessary requirements.
Selecting the Right Material
When choosing flashing for solar installations, consider the type of roof you have. For asphalt shingle roofs, use a 20-gauge aluminum or 24-gauge stainless steel flashing. For tile or metal roofs, use a 24-gauge aluminum or 16-gauge stainless steel flashing. Make sure the flashing is specifically designed for solar installations and can withstand the weight and stress of the panels.
Ensuring a Watertight Seal
To ensure a watertight seal, install flashing that is at least 1 inch taller than the solar panel. Use a flashing that has a 1-inch overhang on the top and a 2-inch overhang on the sides. Secure the flashing with screws that are spaced 6 inches apart, making sure not to puncture the panel. Use a bead of sealant around the edges of the flashing to prevent water from seeping through.
Local Building Code Compliance
Before selecting flashing, check local building codes and regulations for specific requirements. In some areas, flashing may need to be installed in a specific pattern or configuration. Ensure that the flashing you choose meets these requirements and provides the necessary protection for the roof and panels. Consult with local authorities or a professional if you are unsure about compliance.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.