Install Windsor Faux Stone & Rock Corners

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Tools and Supplies You'll Need

  1. Exterior Grade Screws - use screws that are long enough to go through the faux corner and firmly attach to the wall behind the corner. We recommend a narrow head screw (such as a #1 Robertson head trim head screw) to make touch-up easier and less noticeable.
  2. Construction Adhesive/Glue - we recommend either PL® Premium Construction Adhesive, PL® Premium Advanced 8X Construction Adhesive (which has 8X faster bonding), or Great Stuff Pro.
  3. A Saw for cutting the corners – a circular saw, jig saw, band saw, table saw, or hand saw, it is your preference. Any woodcutting blade used with these saws will work great and cut smooth and easy.
  4. Tape Measure.
  5. Level.
  6. Caulking gun for applying the Adhesive/Glue and Caulk.
  7. FauxPanels® color coordinated textured caulk.
  8. Lumber as needed.

Directions:

Select which style of corner you will be installing:

Random Rock Outside Corner

Measure and attach starter strip as directed.

1.) Attaching Starter Strip

Measure 3" up the wall from the base of the highest point of the floor. Snap a chalk line between two marked points. This will provide 1/4" clearance between bottom of panel and base or floor. If more clearance is required adjust accordingly. Make sure to backset the starter strip from the corner by 1¾".

After allowing proper width for accessories, position starter strip with top edge on chalk line and so that "v" is at the bottom of starter strip and away from wall. Attach starter strip with screws on 16" centers or into strong substrate

Check starter strip with level.

Decorative corners are simple to install.

2.) Installing Random Rock Outside Corners

Corners can be finished with a ledger (requires miter cutting) or Ledger Outside Corner pieces. The top of the corner (end with lip on top) should be 1" below the top of flange on the top panel. Dry fit if top panel must be cut horizontally.

There are 4 designs, alternate design 1, 2, 3, 4 and repeat if going higher up the wall. Be sure to alternate "left" and "right" hand pieces to keep the stagger and break up vertical lines for a more realistic appearance.

Slide the corner piece down onto the starter strip snugly and screw the top nailing strip where indicated by the screw guide points. Slide the second corner over the top of the 1st piece and secure as described above.

Following the instructions properly will lead to a realistic looking stone masonry appearance.

3.) Using the Converter strip for Random Rock Outside Corner

Note: If the job requires 2 outside corners to be finished with no breaks between them, when working from the left moving right the final panel piece must be cut and converted to a "male" tongue for proper fit and caulk lines to be maintained.

Measure the distance from the last panel tongue to the leading edge of the outside corner. Subtract 3⁄8" and cut the panel to this length. Turn the panel over and measure in from the cut side by 5/8". Scribe a line down the back. Set the saw blade for 3⁄8" depth and follow the scribed line. Complete the dado channel in the back using a box knife or chisel.

At tach the Converter strip with polyurethane construction adhesive. Make sure the tongue matches in depth and height. After curing, fill any gaps between the panel face and converter piece with caulk. Fill from the back side to ensure a solid line is achieved. Use a putty knife along rock edges to achieve a smooth surface. After it becomes tacky, use touch up kit to paint the exposed edges.

Attach the piece as if it were a full panel.


Ledgestone Flush Outside Corner

Always seat and attach panels tightly together.

These instructions cover both outside corners on the right and outside corners on the right and left. Determine which type of wall installation is required. With all installations of these panels, a starter strip in necessary.

Measure and install the starter strip as required.

1.) Installing the Starter Strip

Determine the height above ground the bottom of the panels should be (often the highest point of the floor) Measure up 2 ¾" from this point and strike a level line. Attach the top of the starter strip on this line.

End the strip 2" from each side of the corner.

Install faux stone corners and panels as directed.

2.) Paneling a wall with one outside corner on the right.

Dry fit the first corner into the starter strip. Secure with screws if necessary. Moving from right to left, dry fit the panels tightly across the wall. Cut the left hand end of the final panel to be flush with the wall or trim piece. Remove the dry fit panels and corner piece.

Continue from corner working left to right to finish wall.

It is important to measure & cut properly when ending both sides of the wall using corners.

3.) Paneling a wall with outside corners on the right and left.

Working from the left outside corner, seat the 1st panel against the outside corner and down against the starter strip. Dry fit the first corner into the starter strip. Secure with screws if necessary.

Measure the distance from the last full panel to the edge of the outside corner. Mark a line for the panel length scribing against the last full panel as shown. Mark a second line for the dado of the back.

Cut the panel length using a table saw or compound miter set to 30°. Use a box knife to dado out the back of the cut panel to fit over the next panels tongue. Using touch up paint, paint the cut edge of the panel.

Slide the panel down and secure as previously described.


Slatestone Outside Corner

Measuring & installing the starter strip correctly ensures proper corner & panel placement.

1.) Installing the Starter Strip

Note: Start the 1st run from the outside corner of the wall.

Place starter strip top 2 ¾" above the desired starting height of the wall (often the base of the highest point of the floor), stopping the strip 2" from each side of the corner edge.

Screw your faux stone corners into place using the screw guides.

2.) Setting the corner pieces

Set the SlateStone outside corner piece against the corner and down against the starter strip. Use the screw guides and place at least 3 screws along the tongue. Place 2 screws in the right lap side of the panel where indicated.

With your corner in place, panels can now be installed.

3.) Wrapping up

Attach the panels working out from each side of the corner as previously described.

Make sure to alternate corner placement for a better look.

4.) Note: There are 4 patterns of the SlateStone Outside Corner. 2 Left hand patterns and 2 right hand patterns. Check for the number on the inside of the piece. They are numbered 1 though 4.

Alternating corners and staggering panels will keep the design from noticeably repeating.

5.) Alternate left and right hand corners with each row to ensure alternating panels offset and to prevent pattern recognition for a more realistic looking masonry appearance.


Stacked Stone Outside Corner

1.) Installing the Starter Strip

Note: Start the 1st run from the outside corner of the wall.

Place starter strip top 2 ¾" above the desired starting height of the wall (often the base of the highest point of the floor), stopping the strip 2" from each side of the corner edge.

2.) Setting the corner pieces

Set the Stacked Stone outside corner piece against the corner and down against the starter strip. Use the screw guides and place at least 3 screws along the tongue. Place 2 screws in the right lap side of the panel where indicated.

3.) Wrapping up

Attach the panels working out from each side of the corner as previously described.

4.) Note: There are 4 patterns of the Stacked Stone Outside Corner. 2 Left hand patterns and 2 right hand patterns. Check for the number on the inside of the piece. They are numbered 1 though 4.

5.) Alternate left and right hand corners with each row to ensure alternating panels offset and to prevent pattern recognition for a more realistic looking masonry appearance.


Sandstone Flush Outside Corners

Installing a moisture barrier is recommended for flush corners.

1.) Install Moisture Barrier

Because flush mounted corners allow possible moisture infiltration between the panel and the corner, a moisture barrier is recommended behind the panels and corner extending in a minimum of 4" from ether side of the corner.

Stackable corner pieces make installation simpler and seamless.

2.) Locate the Corner

Flush mounted outside corners are available in 4’ heights. The placement of the corners will depend upon how the top of the corner is terminated.

For applications which are over 48" in height, the corner pieces are stackable with the top corner cut to the required height.

For wainscot applications the corner is normally capped with a ledger attached to the tongue of the top panel and cut with a compound miter at a 45° angle. In this application the top of the corner should be placed 2" below the top of the tongue on the top panel.

Follow the screw guide points as shown.

3.) Install the Corner

The corner has screw guides or dimples to help the installer position the screws using the correct angle. There are screw guides along the sides. All screws are installed at an angle and at a location where they will be concealed.

Install two screws through the top and at least 4 on each side. Good quality exterior screws that are a #6 or #8 x 2 1/2" are recommended.

Continue install as needed until your corner project is finished.

4.) Install the Panel

Install the rest of the accessories and the panels. The joints between the panels and the corner must be caulked using a good quality caulk to make a water-tight installation. Panel and accessory installation instructions can be found on our Install Guide page.

Important: Never leave cut edges exposed. Any deviation from standard install instructions must be made water-tight (Vapor barrier) and sealed with caulk & touch-up paint.


Sandstone/Ledgestone Outside Corner

Note: Before installing corner, determine how you plan to finish the corner as this will dictate the length of the corner. Corners can be finished with ledger or ledger corners. For ledger finish, the top of the corner (the end with the lip on top) should be 1 3/8" bellow the top of the flange on the top panel.

Dry fit if the top panel must be cut horizontally.

Prep your outside corner piece by installing the plumber strap as directed.

1.) Cut 6 pieces of plumbers stap approx 6" long. With the corner upside-down so that the "stair-step" blocks are exposed, attach the strap to the top blocks on the left side so that it extends out at a right angle to the corner, do the same to the 3rd block and to the bottom block, then to the same three blocks on the right side.

Line your corner up and screw into the structure.

2.) Apply the corner so that the bottom of the corner lines up with the bottom of the first panel and screw through the end of the stap into the structure. You may also wish to glue the corner using polyurethane adhesive.

Stack corners as needed for taller heights.

3.) If more than one length of outside corner is required, stack the corners by locking the male end at the top of the corner to the female end on the bottom of the corner.


Sandstone/Ledgestone Inside Corner

Note: Determine how you plan to finish the corner as this will dictate the length of the corner. Corners can be finished with ledger or ledger corners. For ledger finish, the top of the corner (the end with the lip on top) should be 1 5/8" below the top of the flange on the top panel. Dry fit if the top panel must be cut horizontally.

Screw through the recessed channel to hold the inside corner tight to wall.

1.) Position your corner so that the bottom of the corner will be flush with the bottom of the bottom panel. Screw through the recessed channel at the top, bottom and middle of each side of the corner using at least a 4 ½" screw.

Inside corners interlock and stack for longer lengths.

2.) If more than one length of outside corner is required, stack the corners by locking the male end at the top of the corner to the female end on the bottom of the corner.

Important Info...

To ensure that the panels are oriented properly - the tongue portion of the panel is on top of the panel, and the groove portion of the panel is on the bottom. All joints, including miters, should be glued and caulked. The panels may require additional shimming and trimming for proper alignment.

Be sure to obey all safety rules and recommendations set forth by tool manufacturers.

Always follow any, and all, local, state, and federal building codes.  Always comply with any specified clearances set forth by the manufactures of stoves, fireplaces, furnaces, and any other heat sources, as well.



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