Expansion Joints Stucco Siding

On vertical surfaces and 100 sq.

Expansion joints stucco siding. The distance between control joints shall not exceed 18 feet in either direction or exceed length to width ratio of 2 1 2 to 1. Stucco control and expansion joints are available in roll formed galvanized steel zinc alloys and polyvinyl chloride pvc. Type of materials the orientation of the building and the type of surface. This is the reinforcement that is created before plastering or coating the area.

Stucco on wood frame construction is another story because stucco has a different rate of expansion contraction than the underlying wood framing. Expansion joints will work to prevent this movement from damaging the stucco application avoiding unsightly cracks and damaging gaps. Expansion joint trim is used over lath installed on a 10 ft. The metal lath is where the galvanized metal vinyl stucco expansion joint is usually used.

Many homes were built without stucco expansion joints. Stucco does not require expansion contraction joints when directly applied to concrete concrete block or other masonry except where there is a change from one material to another. Joint spacing the use and spacing of stucco control joints depend on several factors. Vertical and horizontal grid pattern or where surface stress areas exist the product control cracks and provides reinforcement for stucco and plaster surfaces the product may be easily attached to expanded metal lath by screw.

Control joints expansion and contraction shall be installed in walls to delineate areas not more than 144 sq.