Expansion Joints Smooth Stucco Siding

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Expansion joints smooth stucco siding.

Stucco on wood frame construction is another story because stucco has a different rate of expansion contraction than the underlying wood framing. 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. Stucco wall covering method choices methods comparisons.

On vertical surfaces and 100 sq. These kinds of joints normally handle the contraction of the mortar mix and minor expansion and contraction. 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.

What is the proper spacing for contraction expansion joints in portland cement plaster stucco applications. Shaped like a v or m it is usually fabricated with expanded flanges to increase bonding characteristic. 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. 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.

Many homes were built without stucco expansion joints. Expansion joints will work to prevent this movement from damaging the stucco application avoiding unsightly cracks and damaging gaps. These products are manufactured with high impact resistant lead free pvc and conform to astm standards d1784 and c1063. Their purpose is to provide design authoritys and contractors with a rust free damage resistant economical alternative to galvanized and aluminum accessories.

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. Pvc accessories for stucco plaster and modified stucco systems developed by plastic components inc. The type of construction materials to which the stucco will be applied. A one piece joint is typically classified as a control joint.

The proper use of contraction joints in stucco systems will depend on a number of variables including. 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. One piece joints.