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:

LIME VS CEMENT

If I may quote Kit:

Designers in France are using it today for its silky texture and indescribable patina, which are unmatched by any other plaster finish available. It is absolutely stunning.”

Couldn’t have said it any better myself.  Here’s a link to the full post.

We love Tadelakt for walls, showers, floors, it’s a wonderful material.

Thanks also to Canadian Master Plasterer Steve Manby for turning me on to the post through his lime green plaster blog.  Check out the black exterior Tadelakt project he did this past spring in the Vancouver, BC area on a contemporary home. Very impressive.  Here’s a couple of photos:

People are becoming more and more concerned about indoor air quality. Homes plagued with VOCs (Volatile Organic Compounds) or mold can negatively impact the health of the occupants. According to Green By Design, “an estimated 15% of the U.S. population — millions of people — are chronically ill from their homes, and indoor air quality is a major factor.”

If you are using Venetian plaster, you might want to check out some info on indoor air quality around the web:

• The EPA’s guide to indoor air quality

• Wikipedia on indoor air quality

• Treehugger on causes and testing of poor indoor air quality

• Build It Green explains that “A common source of indoor air pollution is the offgassing of chemicals found in many building materials…”

• There’s even an Indoor Air Quality Association…

Have you noticed a difference between working with non-toxic Venetian plasters versus acrylic finishes? Tell us about it in the comments…

This is a really helpful little trick for calming down your Venetian Plaster finishes, especially the more saturated colors.  Pay careful attention, though, about not overtinting your wax. Be conservative and always test a small area first to be sure.  You have to wait until it dries back to really know what you’re going to get.

We’ll post more short subject tips in the future so stay tuned.

Regina is quite prolific and her blog, Fauxology, is always a great read.  One of the most articulate and balanced resources we know of.  Definitely subscribe if you’re in the biz. Check her out on twitter too.

Thanks Regina for all you hard work!

Jenn used Marmorino Carrara on these pillars (click on them to enlarge)…

And these are from her Intonachino project a few months ago…

And last but not least, and exquisite application of Marmorino Classic…

Like what you see? Contact Jenn.

Are you a Stucco Italiano installer that would like to be featured here?  Contact Katharine and send some photos.

Speaking of Lars, if you’re in Colorado this weekend be sure to check out his Handcrafted Finishes booth at the Four Corners Green Living Expo at the Durango fairgrounds (For those of you who live in Telluride, please come down, it is only a two hour drive).

Check out Lars’ personal Stucco Italiano applicator profile…

…and Lars’ website.

Lars of Handcrafted Finishes made a series of videos showing his process applying Tadelakt in a modern home in Denver.

Take a look:

More of of his Tadelakt videos here and here.

A while ago, I briefly mentioned a project Tom Williams is working on in Ballard using Intonachino Extra Fine and Medium. It’s worth taking another look. Click on the picture below to see more photos.

Of course, mold-resistance is great for optimal indoor air health as well, so intonachino and other lime plasters are also ideal for interiors. Quoting from this excellent article on lime plaster’s natural mold resistance; “the short answer as to why Venetian plaster is truly mold-resistant is that mold can only grow in an acidic and wet or damp environment. Venetian plasters breathe and do not retain moisture. Molds also require a food source and an acidic environment in which to multiply.”

For both health- and earth-conscious reasons, Venetian style Italian lime plasters are the way to go…