Stucco

reveivl

Not sure if this is the right forum for this but...
Customer has had leaks for years, stucco/wood frame building, no eaves or rakes. Re built the roof with eaves and rakes and reroofed, reflashed and so-on, convinced the new roof is tight. Had the first of our winter rains and no leaks On the first of our winter storms, though, with driving wind and rain, leaks. Story is she has been applying xypex, which is a concrete additive to seal concrete surfaces, every couple of years and this would mostly stop the leaks for a while. She wanted to do this again, but I don't like the 'mostly' and 'for a while' parts. I don't understand how the xypex would stop the leaks if applied over paint, anyhow.
So, if you're still here... What type of sealer should I use on presumably porous and/or finely cracked stucco? There are layers of xypex and latex paint on it now. TIA Rich.

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From where does knowledge come? If you need to know what is in a box, you could ask someone (not reliable), you could pray, (not useful), you can consult with the scripture (not helpful) or you could open the box (science)

Nathan

I've heard great things about Loxon XP. You have to put it on really thick (15-17 mils) but it seals and also stretches if cracks grow.
All the good parts of elastomerics without all the bad.

Or at least thats what the sales guy told me

I've never used it before though. We typically use Conseal to fill the cracks, Loxon Primer (not conditioner) to seal the surface, and then a top coat of either SW Superpaint or Duration.

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Nathan

"He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot

Wallcoat Joe

This is my world, for a real feel for the effects of wind driven rain check out ww.myleakyhome.com and read. For a cure to the problem check out my site ww.wallcoat.com for alot of education, the key is prep, prep, prep and using a product tested against WDR. We have been using these type products for years with great success and now have a product made for us that was developed and tested by Dow Chem. for this service. Elastomerics were the only way years ago but their lack of permability (the ability to allow the envelope to breath) traps moisture behind the film surface. This leads to mold problems and delamination/failure of the surface. Hope this helps.

reveivl

Thanks for the answers, has anyone heard of 'Rhinohide' ? it is an acrylic latex that has been recommended. Any more input from all you painters? Rich.

__________________
From where does knowledge come? If you need to know what is in a box, you could ask someone (not reliable), you could pray, (not useful), you can consult with the scripture (not helpful) or you could open the box (science)

Wallcoat Joe

I have heard of the product and company, recently though heard grumblings. From what I know they are/were a decent product and applicator but have switched roducts and the same quality is not there. This is hearsay from an ex salesperson who approched me for a job so take it as you will. There are alot of great products out there that will accomplish what you need, we dont sell our product to painters yet, we are trying to protect the name. Nationwide sells 30 different products as well as all of the big paint manufacturers. Look for test results on wind driven rain, permability, and applied mil thickness. A good analogy: If you fall off a motorcycle wearing a T-shirt you will get severe road rash. Fall wearing a denim jacket and you are more protected, less damage. Better yet, wear a leather jacket and possibly walk away with no rash at all. We use this to explain our 12-15 mil coating system.