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Ludowici Interlocking Tile Installation Manual: Lexington Slate & Century Shake <br />64 www.ludowici.com <br />Valley Tiles <br />Tile to be installed in valleys can be mitered in the field <br />or by ordering and using special factory tile. Whether <br />field miter cut or factory tile are used, the tile fasteners <br />should never penetrate the valley flashings. Tile to <br />be installed over the copper valley flashing should be <br />drilled or notched and wired with solid 16 gauge wire <br />to fasteners driven into the deck beyond the flashing. <br /> <br />NOTE: Notching and drilling was addressed previously <br />on Page 21. In situations where valley tile pieces are <br />so small that it is not practical to notch or drill, use <br />the adhesive RT600 (an OSI product) or its equivalent. <br />Figure 64.1 Valley Detail <br />16 oz. Copper Valley <br />Flashing With Hem <br />Copper Cleats 24" O.C. <br />6" Strip of Ice and Water <br />Shield <br />Underlayment <br />DO NOT Nail Through <br />Copper Valley. Attach <br />Small Valley Tiles With <br />Copper Wire and Fas- <br />teners Placed Above <br />Flashing, Apply Small <br />Dab of Roofing Cement <br />to Prevent Migration <br />Apply a 1" Dia. Dab <br />of Roofing Cement to <br />Small Valley Tiles to <br />Prevent Migration <br />To encourage leaves and snow to slide down the <br />valley, the gap between the Valley Tiles and the <br />center line of the valley should be tapered from 3" <br />at the top to 4" at the bottom. This can be increased <br />for long valleys or heavy snow locations. <br />Chalk Line for Valley <br />Tile Cut Line, Tapered <br />NOTE: The Open <br />Cavity at Valley <br />Tiles Can be <br />Pointed With Type <br />“M” Mortar