Expansion Joints Smooth Stucco Siding

The type of construction materials to which the stucco will be applied.

Expansion joints smooth stucco siding. Many homes were built without stucco expansion joints. Balco expansion joint systems and seismic joint covers are the vanguards of architecturally specified products. One piece joints. What is the proper spacing for contraction expansion joints in portland cement plaster stucco applications.

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. On vertical surfaces and 100 sq. The proper use of contraction joints in stucco systems will depend on a number of variables including. Control joints expansion and contraction shall be installed in walls to delineate areas not more than 144 sq.

Stucco joints are commonly available as one piece or two piece joints. Stucco wall covering method choices methods comparisons. Horizontal accessories such as expansion joints or j beads act as collectors for this water and either concentrate water flow at joints in the accessory or dump the water down intersecting vertical accessories. These products are manufactured with high impact resistant lead free pvc and conform to astm standards d1784 and c1063.

A one piece joint is typically classified as a control joint. Their purpose is to provide design authoritys and contractors with a rust free damage resistant economical alternative to galvanized and aluminum accessories. The orientation of the construction vertical walls or. 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.

Expansion joints cannot be retrofit into existing stucco buildings but some steps can be taken to help prevent this from developing into a serious and damaging situation. Stucco on wood frame construction is another story because stucco has a different rate of expansion contraction than the underlying wood framing. Water that seeps into and through stucco as described above contains dissolved minerals from the stucco. From parking garages to hospitals schools shopping centers hotels airports etc balco s priority is.

Pvc accessories for stucco plaster and modified stucco systems developed by plastic components inc. Shaped like a v or m it is usually fabricated with expanded flanges to increase bonding characteristic. Expansion joints will work to prevent this movement from damaging the stucco application avoiding unsightly cracks and damaging gaps.