Installation Instructions
SURFACE PREPARATION
WALLS AND WALL SYSTEMS
Verify structural and surface integrity of existing wall prior to installation.
Manufactured stone veneer units must only be applied to structurally sound walls.
Masonry walls, poured-in-place concrete walls
and concrete tilt up panels
Must be free of dirt, waterproong, paint, form oil or any other substance that could inhibit the mortar
bond. These surfaces must have a rough texture to ensure a mortar bond. Acid washing, sand/bead
blasting, pressure washing or a combination of these methods may be necessary to achieve the required
bondable surface. If a bondable surface cannot be achieved, attach lath and scratch coat before installing
manufactured stone veneer.
EXISTING MASONRY SURFACES
Must be evaluated for mortar and face integrity and must be free of dirt, waterproong, paint or any other
substance that could inhibit the mortar bond. Surfaces may be cleaned by pressure washing, acid washing,
sand/bead blasting or a combination of these methods to achieve a bondable surface. If the surface cannot
be cleaned, attach lath before applying the mortar scratch coat.
Open studs, non-rigid sheathing
Must be prepared with 3.4 lb. lath and can utilize paper backed lath over top of another layer WRB.
Exterior Rigid Continuous Insulation (Rigid Foam Insulation)
Lath attachment methods described in this guide are generally considered acceptable when manufactured
stone veneer is installed over continuous insulation up to ½” thick. Installation of manufactured stone
veneer over continuous insulation greater than ½” thick generally requires an engineered fastening system
to be provided by the building designer.
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Disclaimer: This installation guide follows published MVMA and IAPMO specications.
Check your state building guidelines and codes for additional installation information.