Construction Notes — Here are a few pointers to consider when working with MaxiTile:

• Over wood shakes, remove any old trim and cut the overhang at the eaves. Apply a minimum 40 pound felt, and then install vertical nailing strips (1 x 4) over rafters and horizontal battens (1 x 4) on top of the vertical battens at 20 inches on center.

• Over wood shingles, make the same preparations as for wood shakes except you can choose either nailing strips and battens, or fasteners long enough to penetrate 3/4 inch through the existing sheathing.

• Over rock roofs, spud and sweep off all rocks so the 90 pound felt won’t be punctured. Install tiles using fasteners long enough to penetrate the substrate at least 3/4 inch.

• In areas where maximum wind speeds are below 60 mph, use MaxiTile’s square cap nail; for wind speeds from 60 to 110 mph, use their 15/8-inch screw and washer system. Each tile must also have a dab of adhesive 1/4 inch thick by 1 inch wide applied to the side of each barrel. Special screws are available for steel framing.

• For areas with winds above 110 mph, use a 43/8-inch screw and washer system and fasten externally through the headlaps at the top of each barrel. The headlap is the finish tile cap used at the ridge, hip, and rake. Apply a dab of silicone over the head of each fastener.

• Tiles don’t require predrilling.

• In areas prone to high winds, a simple solution could be to use the 11/2-inch Tile Clip. It provides increased resistance to separation or lifting of the tile at side laps during heavy wind.

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