Repainting Stucco House
Looking at repainting our house this spring, myself. Originally the house had green stucco and was painted brown, probably 20-25 yrs ago. I don't know what kind of paint was used, but it was sprayed, then rolled. This paint has held up very good, but there are a few places that it has started to crack/peel, exposing the green stucco. I have been spending a lot of time researching this, but still have several questions. I thought of going with an elastomeric paint, but have seen several say that, "unless you have a water issue, stick with a good 100% acrylic paint." Also thought I'd power wash it, but some say no, it will damage the existing paint & stucco. I will go with either Kelly Moore, Benjamin Moore or Sherwin Williams, as they are available locally, and seem the most reputable. Should I primer where the existing paint has cracked? I will borrow an airless sprayer to paint under the eves (wood), so can spray the stucco too, or just roll it. I am located in San Jose, Ca.
You should clean the substrate, you can use a pressure washer if your careful with it and don't put it to close to the stucco, use a cleaning solution ie. Liquid tsp, simple green, krudkutter, after cleaning the substrate wire brush, scrape all loose paint, repair any damaged or cracked stucco, caulk as needed, prime any bare spots of stucco, then apply two coats of a 100% acrylic paint, my recommendation is SW exterior Superpaint.
Any quality pressure wash job will only remove paint that should be removed anyway
(Though realistically a pressure washer in the hands of someone who doesn't know what they are doing can do a lot of damage)
For stucco (admittedly I don't see a lot of that out here, though I have done mucho stucco in Fla. after major hurricanes a few years ago*), I'd go elastomeric**
My recommendation (figuring you do know a bit about what's up) would be:
Pressure/Power-wash and elastomeric paint** for stucco
* I used a local/regional exterior paint which was geared for and worked well for the local/regional substrates(stucco)/environs(warm/high-humidity)
I honestly don't know if it was acrylic or elastomeric (though I'm sure it was the latter)
** the rule of thumb as such (in general)
If you have a local/regional paint manufacturer used to stucco in your environs, then I'd go local/regional as they know the deal
***(<<< hey there wasn't one of those "***" up there...) Please keep in mind most "national" brands must compromise their products to be at least "OK" on/in all substrates/climates (Alaska to Brazil...or at least Northern Wisconsin to Southern Texas)
If you have a fair amount of local/regional differences or specifics (substrate/climate) from the rest of (most of) North America (ie: Middle America), I'd go local/regional
Your choice of primer (or not) would depend upon your choice of top coat(s)
Contact the "lab boys/girls" of your choice of top coats in regard to specific primers
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