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Haydite Building Question

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Old 04-19-2019, 07:00 PM   #21
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Re: Haydite Building Question

So Cal have guys that do this as their bread and butter.

You can't really assess the situation just from that picture, only guess at what is happening. I'm not convinced the stucco is the underlying problem, there could be cracking above the lintels, for instance. There could be intrusion at the roof-wall juncture, you can't really say.

The same thing happens with getting moisture in a wood framed wall and plaster. Plaster gets moist, and it softens and delaminates.

Up here with exposure to salt in the winter, you'd seal the final surface with saltgard.
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Old 04-19-2019, 07:23 PM   #22
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Re: Haydite Building Question

Originally Posted by fjn View Post
Applying Herculean measures to that building is like putting perfume on a pig. Aint going to do much good. If the designer did not think enough of his design to do it correctly.........run Forrest run !
I'm not convinced it was initially done "wrong". Stucco can be used to waterproof foundations. It can also be used on a 1 story dry stack in lieu of grout.

I personally like it, BUT it's very picky about how much water, additives, exact mixing time (mortar mixer only), temp and shade/sunlight, finishing technique, etc.

If you don't want fine cracks, you aren't doing a smooth finish with a steel trowel.

Even being careful, there can be microchannels that allow some moisture into limited parts of the stucco. That's part if the reason sealing and keeping it sealed as part of maintenance is important. More work than vinyl siding, less work than wood siding.

Around here, I can order in Surface Bonding Cement. That's a fibered one coat stucco mix. By the time you add in acrylic fortified and some colorant, it about $40 per bag (50 lb?). Application thickness is 1/8 to 1/4".

I'd definitely take that stucco rehab on, I've dealt with way worse.
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Old 04-19-2019, 07:42 PM   #23
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Re: Haydite Building Question

The two basic rules of construction are,if you want to eliminate problems with flat roofs,eliminate the flat roof. If you want to eliminate problems with parapet walls.... This building has that and more going on.Who knows,the water could be a result of parapets without through the wall flashing,no cant strip at interface of roof and wall etc.

If it is in fact the stucco,the elastomeric coating coating made by Parex / LaHabre would do the trick. But as the old saying goes "one has to pick their battles wisely. I'd look for an easier fish to fry. Once you touch it,you own it.


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