The first and most common joint is a quirk miter joint.  This joint is formed by two stone panels at an outside corner where the meeting edges are mitered and the edges are exposed and finished.  The joint is then filled with backer rod and siliconed.  Silicone color will depend on color of the stone.  This option is the least expensive option because it does not need any pre-fabrication before arriving at the job site.  Lightweight stone panels that feature quirk miter joints are easier to install.

The second type of joint is a finished corner.  This joint is formed at an outside corner and pre-fabricated before arrival at the job site.   After assembled, the edge is available mitered or with a radius   This option is a little more costly because of the time it takes to fabricate the corners.

Please check out our CAD details for more information about quirk miter and finished joints.

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A joint is the gap between StonePly stone panels and an adjoining material or the gap between two StonePly panels. StonePly Stone Panel Cladding has two different joint systems available. Joint sizes range from 3/8″ to 1/2″. Larger panels may require a larger joint size to compensate for building movement, expanding and contracting of the stone and expanding and contracting of the joint.

In a sealant joint, a flexible type of round foam polyethylene, butyle rubber, or polyurethane, known as backer rod, is inserted and pushed to the back of the open joint. After the backer rod is in place, sealant, usually silicone, is gunned into the joint to seal it. If water is absorbed by the stone it will not seep into the building because StonePly has a drainage cavity to allow water to drain out instead of into the building. This is the most common joint.

In a rain screen system sealant is not used. This system utilizes an open, dry joint to avoid water leakage. The joints are left open to allow for moisture and air to flow through weep holes. This type of joint alleviates pressure behind the cladding and therefore helps avoid water leakage.

For more information on StonePly joints, please visit our technical page.

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