Clay barrel tiles add timeless beauty to Mediterranean and Spanish-style roofs, but proper installation of eave closure strips is critical to prevent water infiltration, wind uplift, and pest intrusion. This guide walks through the precise steps for installing eave closure strips under clay barrel tiles.

Before beginning, gather materials: clay barrel tiles, eave closure strips (preformed foam or metal profiles designed for barrel tile profiles), roofing felt or underlayment, galvanized nails or roofing screws, a utility knife, measuring tape, chalk line, and a tile cutter. Safety gear including gloves and eye protection is essential.

Step 1: Prepare the Eave Area. Ensure the roof deck is clean, dry, and smooth. Install the roofing underlayment according to manufacturer instructions, overlapping layers by at least 4 inches. For eave protection, apply a 36-inch wide self-adhering ice and water shield along the eaves.

Step 2: Position the Eave Closure Strips. Eave closure strips are placed at the lower edge of the roof, directly on the underlayment, before installing the first course of barrel tiles. These strips fill the gap between the undulating tile profile and the roof deck. If using foam strips, align them with the eaves and cut to length using a utility knife. For metal strips, ensure they are pre-bent to match the tile wave pattern.

Step 3: Secure the Strips. Fasten the closure strip to the roof deck using corrosion-resistant nails or screws spaced no more than 12 inches apart. Drive fasteners only into the flat areas of the strip that contact the deck. Avoid fastening through the raised portions to maintain the seal shape.

Step 4: Install the First Barrel Tile Course. Place the clay barrel tiles directly over the closure strip. The bottom edge of the tile should overhang the eave by 1 to 1.5 inches, directing water into the gutter. Ensure each tile sits snugly against the closure strip. Check that the side laps are at least 3 inches.

Step 5: Seal and Inspect. Apply a bead of high-quality roofing sealant at the junctions between adjacent closure strips and at the ends where they meet rakes. Inspect the entire eave line for gaps. Any opening larger than 1/4 inch should be filled with expanding foam sealant or a metal filler piece.

For maximum longevity, use clay tile eave closures made of UV-stable EPDM rubber or PVC, as these materials withstand temperature extremes without cracking. Avoid using standard foam backer rods, which degrade under sunlight.

Professional installers also recommend nailing a drip edge fascia prior to closure strip installation. This metal flashing protects the roof deck edge and provides a clean transition to the gutter system.

By following these steps, you create a secure barrier that prevents driven rain from entering the roof cavity and stops birds or rodents from nesting under tiles. Proper installation enhances the roof’s thermal performance and extends the life of the entire roofing system.

Remember: Always check local building codes for specific requirements regarding tile overhang, strip material, and fastener spacing. With careful execution, clay barrel tile eaves will remain watertight and beautiful for decades.