control joint

Isaac Kremer/ September 9, 2018/ / 0 comments

A preformed metal strip installed to relieve shrinkage, temperature, or structural stresses within a large plastered or stuccoed area. 2. A continuous groove or separation formed, sawed, or tooled in a concrete or masonry structure to form a plane of weakness and thus regulate the location and amount of cracking resulting from drying shrinkage or thermal stresses.