Expansion Joints Smooth Stucco Siding

What is the proper spacing for contraction expansion joints in portland cement plaster stucco applications.

Expansion joints smooth stucco siding.

A one piece joint is typically classified as a control joint. This article discusses types of stucco building exterior wall materials and installation methods including stucco recipes three coat stucco installations stucco wall expansion joints metal lath stucco systems how stucco is applied to walls thin coat stucco systems. We constantly innovate and incorporate the latest technology to protect commercial buildings from damage due to fires and movement from thermal expansion wind or earthquakes. Balco expansion joint systems and seismic joint covers are the vanguards of architecturally specified products.

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. Many homes were built without stucco expansion joints. 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 wall covering method choices methods comparisons. The proper use of contraction joints in stucco systems will depend on a number of variables including. 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. Control joints expansion and contraction shall be installed in walls to delineate areas not more than 144 sq.

These products are manufactured with high impact resistant lead free pvc and conform to astm standards d1784 and c1063. Shaped like a v or m it is usually fabricated with expanded flanges to increase bonding characteristic. These kinds of joints normally handle the contraction of the mortar mix and minor expansion and contraction. 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.

Their purpose is to provide design authoritys and contractors with a rust free damage resistant economical alternative to galvanized and aluminum accessories. Expansion joints will work to prevent this movement from damaging the stucco application avoiding unsightly cracks and damaging gaps. Stucco on wood frame construction is another story because stucco has a different rate of expansion contraction than the underlying wood framing. The type of construction materials to which the stucco will be applied.

One piece joints. 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. Water that seeps into and through stucco as described above contains dissolved minerals from the stucco.