Can anyone tell me if it possible to stucco a 60 foot wall without some sort of cold/expansion joint. I am doing this myself on a garage wall and am curious how to deal with the strong possibility of not gettin’ er done in one day. I am thinking a dry edge to work off of is going to form cracks in the future…Any info will help
Thanks Mike
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Have you looked at the metal screed exp. joints?
These would allow you to section it off.
I don't know what the max length of un-expansioned stucco is, but if you can't run it-why try.
Make a pleasant design feature out of it.
any bets what I copied won't paste?
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Well, you got the print-go here for the pics and print you can understand
http://www.cement.org/stucco/faq_spacing.asp
FAQ's
Stucco Home > FAQ's > Joint Spacing
Q: What is the proper spacing for contraction/expansion joints in portland cement plaster/stucco applications?
A: The proper use of contraction joints in stucco systems will depend on a number of variables, including: the type of construction materials to which the stucco will be applied; the orientation of the construction—vertical (walls) or horizontal (ceilings); and whether the surface is curved or angular.
Stucco may be direct-applied to concrete or masonry substrates; however, if these materials are used together, as in the case of a concrete framework of beams and columns with masonry block infill, a joint may be required at the transition of one material to another. Stucco that is direct-applied to concrete or masonry requires contraction joints only where there is a change in material or where there are joints in the concrete or masonry structure.
Metal lath may be used over concrete or masonry construction and should be used in sheathed frame and open frame construction. When stucco is applied to any construction using metal lath, joint spacing recommendations should be implemented. The recommendations found in the Portland Cement Plaster/Stucco Manual, EB049, are based on ASTM C1063, Standard Specification for the Installation of Lathing and Furring to Receive Interior and Exterior Portland-Cement Based Plaster. Applications that use metal lath require three layers of plaster: scratch, brown, and finish coats.
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The joint spacing should meet the following criteria:
no length should be greater than 18 ft. in either direction
no panel should exceed 144 sq. ft. for vertical applications
no panel should exceed 100 sq. ft. for horizontal, curved, or angular sections
no length-to-width ratio should exceed 2 ½ to 1 in any given panel.
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I have stucco'd a block bldg.
Small thin and rampant cracks appear when the coats dry too quickly.
In high heat, direct sun, not enough moisture on the subsurface. We had a heck of a time keeping all of them at bay. The job ended successfully but not without drama. If you get cracks on successive coats they will want to reappear-going over them doesn't really cut it.
Best of luck.