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Installation Instructions Pinnacle Stone's Installation Instructions – Natural Thin Stone Veneer. Pinnacle Stone Products

What you’ll need:

• eye protection • ½” tuck pointed trowel
masonry hammer • 18-gauge galvanized metal lath*
• staple gun or hammer stapler* • galvanized nails or screws*
• scraper • weather resistant vapor barrier paper*
• flat trowel • wheelbarrow
• brick trowel • mixing hoe
• stiff brush mortar (type S)
masonry brush • cutoff saw with diamond blades*
• grout bag • Pinnacle Thin Stone Veneer

*Not necessary for all applications.

1. Clean and prepare your surface. Any painted surfaces must be stripped before applying your veneer.

a. If applying veneer to a non-framed surface, proceed to step #3.

b. If applying veneer to a framed surface, an exterior sheathing is required. Sheathing is typically plywood, composite board, flush metal siding or another material in compliance with local building codes. Ensure sheathing is in good condition, replace any sheathing that is in poor condition.

c. Apply weather resistant vapor barrier over the sheathing, (Figure 1) securing with staples. Be sure to apply the barrier, starting at the bottom of your project and overlap the sheet joints at least four inches. Pinnacle recommends two layers of vapor barrier; be sure to check your local building codes for any layering requirements.

Figure 1


2. Install galvanized metal lath over sheathing, (Figure 2) starting at the bottom, using galvanized nails or screws.

3. Mix rich mortar to manufacturer’s specifications (typically to a “frosting-like” consistency).

Figure 2
Figure 2


4. Apply a scratch coat over the metal lath, (Figure 4.1) or non-framed surface, at least ½-¾” thick using a flat trowel and a mortar (type S) mixture, according to manufacturer’s specifications.

Once scratch coat is applied, rake horizontal grooves in the scratch coat (Figure 4.2) and allow it to cure. This can be done with a stiff brush or rake.

Figure 4.1
Figure 4.1
Figure 4.2
Figure 4.2


5. Arrange stones on the ground, (Figure 5) or any large surface, to desired pattern.

Make sure stones are free from any dirt, dust, or debris. If any trimming is necessary, complete it now using a masonry hammer. Eye protection should be worn whenever splitting or cutting veneer stones.

Figure 5

6. After mixing, use a masonry brush to dampen the back of each stone before you apply a generous ½-1” coating of mortar (Figure 6.1).

Firmly press the stone onto the scratch coat at the desired location, allowing excess mortar to squeeze out from behind the stone (Figure 6.2). A slight swirl, while pressing the stone will help ensure a firm bond.

Pinnacle recommends for projects containing corners, that they are placed first, starting at the bottom, before the flats, which will aid in keeping your pattern consistent.

Figure 6.1

Figure 6.2


7. Keep the stone faces free from any mortar throughout application.

If mortar gets on any stone’s face clean it from the stone using a brush and sponge before it dries.


8. Use a grout bag to fill in the joints (Figure 8.1).

Allow grout to slightly harden (properly hardened grout will crumble or flake when tooled) before tooling to desired depth (Figure 8.2). A tuck pointing trowel is useful here. Brush off any excess mortar after tooling.

Figure 8.1
Figure 8.1
Figure 8.2
Figure 8.2


9. Repeat steps 6-8 until your project area is covered with veneer.

10. Allow your project to cure for at least 72 hours.

11. If necessary, wet your veneer and apply a mild cleaning detergent and use a stiff brush to clean off any remaining dust or debris.


12. Enjoy the beauty, elegance and value you’ve created by choosing Pinnacle Natural Stone Veneer for your project.