C. Birdstops, boosters and starters:

1. Install clay birdstops along entire length of all eaves.
2. Install first course of pan tile leaving a 2 to 3 inch overhang at eave.
3. Install 3 inch booster tiles on top of birdstops.
4. Install 14-1/2 inch starter tiles on top of booster tiles along perimeter of all eaves.

D. Fasteners:: (Edit to avoid conflicting requirements)

1. At plywood decks, provide minimum of 11 gauge, large headed, non-corrosive box nails of sufficient length to penetrate 3/4 inches into or through the sheathing, whichever is less.
2. At nailable concrete decks, use stainless steel or silicon bronze screw shank nails of sufficient length to penetrate 1/2 to 3/4 their length into, but not through the deck.
3. Provide two fasteners per tile in snow areas.
4. In areas designated by the building officials as being subject to repeated wind velocities in excess of 80 mph, or where roof height exceeds 40 feet above grade, all tiles shall be attached as follows:
   1. The heads of all tiles shall be nailed.
   2. The noses of all eave tiles shall be fastened with approved clips.
   3. All rake tiles shall be nailed with two nails.
   4. The noses of all hip, ridge and rake tiles shall be set in a bead of approved roofer's mastic.
5. On slopes over 7/12, the nose end of all tiles shall be securely fastened with "Storm Locks" or "Wind Locks", as manufactured by The Wire Works, Inc. (800)341-8828, or with other approved fastening system.
6. Provide Twisted Wire Tile-Tye, or Riness Tile-Tie system of brass, copper or galvanized wire as manufactured by The Wire Works, Inc. (800)341-8828, or other approved fastening system.

E. Install field tile in courses beginning at eave working up incline of roof deck.

1. Install pan tiles in vertical rows at a maximum of 9 inch centers, with cover tiles fastened over the intervening spaces, providing a maximum exposure of 14-1/2 inches for each tile.
2. As an alternate, cover tiles may be laid with random exposures from 8 to 14-1/2 inches, visually breaking all horizontal lines.
3. As an alternate, end laps of cover tile can be embedded in cement mortar for a more rustic appearance.
4. As an alternate, cover tiles can be doubled using booster tiles laid dry or laid in cement mortar.
5. Install hip, ridge and rake tiles: