Down to Earth Design - natural building design, workshops, and environmental consulting. Down to Earth Design - natural building design, workshops, and environmental consulting. Build a Clay (Cob) Oven in Your Yard! How to build a wood-fired pizza/bread oven using local natural materials If you are looking for a small project to get your hands (and feet!)
Dirty testing out some natural building skills, then building a wood-fired oven is a great place to start. If you have a little help, it takes just a couple days to build, then a few weeks to let it dry out (during which time, you can sculpt your oven to any shape), and then you're ready for a pizza party!! What is a cob wood-fired pizza oven?? Well...it's a baking oven that is heated by lighting a fire inside, the fire warms up a thick clay oven wall, and the clay wall remains warm for hours after the fire is pulled out. So, what do you need to know to ensure that your oven project is successful? FIRST, get this book: SECOND, decide what size oven you want to build. The appropriate size for you will depend on how you intend to use your oven. Typical sizes are 22-1/2", 27", or 36" (these sizes work out well with the size of standard fire brick). I need the recipe for tadelakt (cob forum at permies)
Here is the recipe and basic instructions I learned from Ryan Chivers during a tadelakt workshop this spring in Portland. ( He works out of Boulder, CO and traveled to Morroco to learn the traditional way.
We used both NHL and Type S lime for our project, and the Type S was much easier to work with. A slower setting time, and it seemed slightly less caustic as we mixed and applied it without worrying about gloves. Here is your mystery ratio... 1:1 type s lime : calcium aggregate (i.e. crushed marble, swimming pool sand) it is important that your aggregate have at least 10% volume that fits through a 200 mesh screen (fine enough to fit through a window screen) and not exceed a size of 20 mesh. You can get fact sheets given to you by your local builder supply store that supplies aggregate on the particle sizes. The famous black soap that you speak of is this one. Up to 10% of a lime plaster mix can be pigment by volume. In my experience, tadelakt is all about timing. Paint Pigments - Earth Pigments. Ecologic Mortar. ® Mortar ....Just add water!
For doing repointing work, stucco and plaster work or for laying up masonry units with a significant CO2 savings over modern materials used for the same applications. Our on-line calculator gives the CO2 savings result you receive. The advantage of the pre-blended material with sand and pigment already added is that the mixing can take place on each level of scaffold, if suitable conditions allow using the drill and paddle mixing method, with no excess sand piles or other bags of material stored on site. Ecologic™ pre-blended mortar is all you need. . ® Lime Mortar And Color-Matching System NO Portland Cement is present in Ecologic™ mortars. DIY Plastering 1:1 Personalised Course free guide how to plaster, DVD Video. Beautiful custom finishes, natural materials & traditional craftsmanship.