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Discussion Starter #1
Will stucco stick to plywood without chicken wire hooked to it? We have a nice block foundation covered with stucco on the old part of our house but the new addition has just plywood underpinning on top of a cement footing. Can I just smear stucco on the plywood and it stick?

Or would globs of cement stick to the plywood and look like the stucco? Or would I need to hook some chicken wire to the plywood and then stuff the stucco onto that? Thank you.
 

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You will need the wire if you want it to stay for very long.
A lot of people do not know it but water will go right threw cement, stucco and every thing like it. It will get to the wood and then you know what will happen. First it will make the bond between what ever you put up and the wood to become unbonded. Then the wood will stay wet and start to rot.
What you should do if you want it to last is this. Put a layer of tar paper on first it can be the cheap thin stuff that is just fine. Then put your wire. They make it with the tar paper already attached to the wire to make it easy. You should be able to find it in any home improvement store.
 

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put tar paper up first then the chicken wire or metal lath, and then have at it.

http://www.cement.org/stucco/faq.asp
good information at the above site

http://www.doityourself.com/stry/applyingstucco
Stucco a Wood Wall

The procedure for applying stucco to a wooden surface is somewhat different, beginning with nailing 15-pound roofing felt over the structure. After the roofing felt has been installed, it should be covered with 17-gauge metal netting. This netting can be purchased in 150 foot rolls at many home improvement stores. The metal netting is applied by attaching it to the structure using galvanized roofing nails. After the netting is in place the excess can be trimmed using tin snips.

The next step is to apply a scratch coat by using a trowel to spread a 1/4 to 1/2 inch layer of mortar, carefully forcing this mortar into the netting. This will cause the mortar to exude through the netting, which will in turn help to "key" the coating into place.

It is important to complete one wall before starting another one, and to allow the scratch coat to harden slightly before proceeding. After the mortar has slightly hardened, the next step is to use a plasterer's rake or homemade equivalent to scratch the entire mortar coat to a depth of at least 1/8".

When working with mortar, a slow and careful curing will work best and provide the greatest strength. The scratch coat should be allowed to cure for at least 36 to 48 hours before proceeding. During the curing process the wall should be misted periodically to keep the area damp. When the weather is hot and dry, more frequent misting may be required.

After the scratch coat has been allowed to cure, the finish coat can be applied. A flat finishing trowel can be used to apply a finish coat between 1/8" and 1/4" thick to the scratch coat. If a powdered pigment is desired, the pigment should have water added to it and be mixed completely before being added to the stucco. The stucco can then be finished to the desired texture and allowed to cure for several more days.

As the finish coat is curing, it is important to mist it periodically to prevent the surface from drying out. If the stucco is to be painted, wait at least six weeks, and use a paint that is specifically formulated to cover stucco walls.
 

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Discussion Starter #5
Thank you a lot! I found some instructions online but this is better. We could not find the black paper with the metal wire already on it but we did find the metal netting and black paper so we can do it in two steps. Thank you very much
 

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A lot of people around here stucco mobile homes because it adds insulation. They generally put a layer of tar paper, styrofoam (for insulation) and then the stucco. Seems to work very well.
 
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