·Materials list:

  ·Stone
  ·15 Pound Felt Paper
  ·Stucco Lath
  ·Roofing nails (Long enough to penetrate studs .5 inches.)
  ·Masonry Cement (approx. 4 bags per 100sq feet of stone)
  ·Sand (approx. 500 pounds per 100sq feet of stone)

·Tools required:

  ·Hock and Trowel (Stucco Tools)
  ·Small stick for cleaning joints
  ·Brush

NOTE: Unpainted or unsealed masonry or concrete surfaces do not require paper or stucco lath. Petra Stone can be applied directly to these surfaces.

STEP 1: Apply 2 layers of felt paper to sound, ready to use, wood, insulation board, or drywall surface.

STEP 2: Fasten stucco lath with roofing nails every 6 to 8 inches on studs.

STEP 3: Mix masonry cement approximately 2:1 sand to cement. Add mortar color if desired. Add sufficient water so that when the handful of the mixture is thrown against the wall, it adheres.

OPTIONAL STEP: Apply an even 1/4" coating of cement (scratch coat) to your wall surface and lightly scratch with a hair pick. Allow to dry overnight. This acts an additional water barrier and "grabbing surface" for your stone.

STEP 4: Starting at the top, spread cement on the wall approximately 1/2" thick covering a small area (3' X 3') at a time until you are acquainted with the procedure, so that the cement will harden before the stone is in place.

STEP 5: Press the stone into the cement until it grabs; be sure to leave some mud between the stone and the wire. Slide the next stone as close as possible so that the cement fills the joint between the stones.

STEP 6: Allow cement to set up about 50% (about 15 minutes, depending upon the temperature and humidity) before smoothing joints between stones. CLEAN STONES WITH BRUSH AND WATER BEFORE CEMENT HARDENS ON THEM. DO NOT USE MURIATIC ACID!