Installing solar panels on a tile roof involves replacing a section of tiles with mounting brackets, attaching a rail system, and securing the panels while preserving the roof's integrity and weather resistance.
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Pre-Installation Assessment
Contractors evaluate the roof's structure, tile type, and orientation before work begins. They check for damaged tiles, confirm rafter spacing, and plan where to place flashing and mounts to avoid leaks.
Removing and Replacing Tiles
Workers carefully remove the tiles in the designated area. A mounting bracket is then fastened directly to the roof deck or rafters. Replacement tiles or custom flashings are installed around the bracket to maintain the roof's water barrier.
Attaching Rails and Panels
Vertical rails are bolted to the brackets, creating a secure frame. Panels are mounted onto the rails with clamps, and wiring is routed through the roof with properly sealed penetrations.
Tile-Specific Considerations
Clay, concrete, and slate tiles each require different handling. Fragile tiles may need extra care during removal, and some systems use tile hooks that slide under the tile instead of replacing it.
Sealing and Weatherproofing
Flashing and sealant are applied at every penetration point. Proper installation prevents water intrusion and ensures the roof continues to perform through storms and temperature changes.