Are movement joints required for United Stone Veneer?
Expansion joints usually pass completely through a wall. Control joints are often placed on the surface of the wall to relieve strain on the skin of the wall. Terminate the veneer installation where control and expansion joints occur in the substrate. Do not span these joints with veneer because this will lead to cracking. Expansion joints in a building must be specified by the architect or engineer. The architect or engineer should consider the ASTM C 1063 control joint requirements when determining the location of control joints on any structure. The weakest point on a wall is usually immediately above and below the penetrations.
