On Dec 30, 2009, at 12:39 PM, sherri@******** wrote:

Hi Kay Lynn and Aaron -
I designing the surfaces for a huge residential project and would like to specify Tadelakt for the showers and accent walls. A couple questions:
- How much p sqft is the going install rate for Tadelakt?
- As the installer, how can I ensure that the Tadelakt is truly waterproof?
- I would like to use Tadelakt for an adobe style fireplace (steel frame w/ cement board substrate). Will the olive oil soap cause any problems with the heat from the fireplace? Does applying the olive oil soap affect surface breathability sim to other waxes?
Thanks a bunch for all your help throughout the years!

Cheers -

Sherri

Hi Sherri,

Apologies for the delayed response.  Install rates for Tadelakt can vary considerably, especially when doing smaller areas like showers.  I’d be looking in the $15-$25 per sq foot range to give yourself the time necessary to do those areas properly.  For straightforward walls it’s probably about twice as labor intensive as a basic AC wall and the material cost will be around $2 – $2.50 per sq foot.
Waterproof is not the right word for traditional Tadelakt finishes. Tadelakt plus olive oil soap applied properly should be described as hydrophobic(water-repellent).  The substrate preparation is very important of course.  Traditional Tadelakt will stain over time in high moisture areas although this is not a sign of failure of the material – it is actually a testament to the fact that the surface remains breathable.  We have a water-based carnauba wax which will give an added level of water repellency after the surface is applied, but I’d be careful not to guarantee there will be zero water staining over time even with that wax.  The Lucido wax is low but not a zero voc product.

Only issue with fireplace is that the soap will not protect against high-heat discoloration if flames are lapping over the surface.  But the soap is not flammable in any way.  The olive oil soap allows the surface to remain breathable.

We’re getting tons of requests to do some Tadelakt classes – seems like interest in that particular material has really surged this past year.

Talk to you soon,
Aaron

Here’s a Stucco Italiano Tadelakt floor installation done in Santa Fe last October:

Steve Manby of Authentic Plaster FX posted on his blog about Aaron checking out his black Tadelakt exterior.

Hopefully he’ll send us more pics soon!

• UPDATED 8-18-09

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]]> http://www.stuccoitalianoinc.com/social-media/twitter/venetian-plaster-and-faux-finish-people-on-twitter-updated/feed/ 3 http://www.stuccoitalianoinc.com/tips-tricks/venetian-plaster-installation-intonachino-x-fine-interior/ http://www.stuccoitalianoinc.com/tips-tricks/venetian-plaster-installation-intonachino-x-fine-interior/#comments Sun, 17 May 2009 21:40:47 +0000 Aaron Cohen http://www.stuccoitalianoinc.com/?p=892 This project involves the interior installation of about 6000 square feet of our Intonachino Extra Fine lime plaster.  We are doing the finish in a distressed style, leaving some random openings between the first and second coat and lacing in some lighter highlights.

We went through a number of samples to find just the right color and texture.  Below is a sample wall I did just to make sure the owners were completely comfortable with the finish before we got started.

The clients asked me to come up with something that would work well in their elegant Mediterranean home. It was easy to see how using a richer color for the interior walls would help accent the substantial crown moldings, baseboards, and casings and give the home more richness and depth. The owners commented that once the walls started getting plastered the paint job on the walls began to look like primer – as if the house had not been completely finished until we showed up.

My good friend Bill Kaiser, owner of Elite Plaster in Bend, Oregon, and his brother David came up to help out with the project.  Both guys, although relatively young, have a great deal of expertise in Venetian plaster application, as well as extensive exterior stucco knowledge.  Bill’s done numerous exterior applications with Intonachino in central Oregon over the past few years.

We ran our material as a modified wet-on-wet application.  First coat was applied and allowed to go to set – as soon as we were sure there were no soft spots on the first coat we went right back in with the finish coat, waited for that to firm up, and then came back with a clean trowel to press and smooth the finish.

This technique saves some time and materials as compared to a traditional application in which one allows the first coat to go completely dry and come back next day.  Another advantage of going wet-on-wet is that the residual moisture in the first coat gives the second coat more open time, eliminating concerns about cold joints and lap marks even over large walls.  I wouldn’t recommend the same application on an exterior – you’re much better off doing a full first coat and letting it dry completely for exteriors.

We still have a week’s worth of work doing sealer and finishing columns and a couple of accent areas next week, but most of the wall surfaces are complete.  Those exterior stucco guys move fast!  Here’s a before of the hallway:

And after:

I’ll post more finished shots when we get ‘er all done.

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