Tab R 121 Proper Flashing

Photovoltaic sloped roof flashing installation

Choose an appropriate racking and mounting system for the type of PV module, and install the system along with needed flashing and seals. See the Compliance Tab for links to related codes and standards and voluntary federal energy-efficiency program requirements. . Aluminum flashings for built-up roofs are available from Quick Mount PV in 4" and 8" cones (sold separately). For membrane roofs, be sure to use manufacturer-specified flashing and utilize the services of a certified roofer. When installed correctly, the flashings provide a watertight seal against the elements. Your toolkit should include: First, always locate the roof rafters. This technique virtually eliminates leak potential and is becoming the industry. . Solar panel flashing is a waterproofing component that seals roof penetrations where solar mounting hardware is installed. This critical system prevents water infiltration that leads to structural damage, mold growth, and electrical system failures.