#2016-001 – When existing concrete and clay tiles roof systems are altered for the installation of roof accessories, there is confusion in the solar community as to what flashings may be required with tile roofs. It is critical to the long-term performance of a tile roof system that all penetrations or disruptions to then field tiles receive the appropriate deck/underlayment flashing at the penetration, and tile flashings, to ensure uninterrupted water flow on the surface of the roof system, with the secondary protection at the deck/underlayment level in case the tile or tile flashing is breached. The attachment of any accessory directly to an individual tile or tiles is prohibited.