Chris Magwood from the Endeavour Centre in Ontario, Canada takes us on a virtual workshop of natural plasters.
He thoroughly explains the different types of natural plasters and the way they work, where they can be sourced, what their embodied energy is, and their advantages and disadvantages.
There is a long section explaining the composition of the most commonly used base layer -sand, straw, and local clay soil.
Chris also covers the importance of preparing the substrate, and describes the meshing process of transitioning from one material to another. He illustrates many of the concepts with both a straw bale substrate and a wooden lath substrate.
The DVD also covers the logistics of preparing large amounts of plaster: the mixing, transportation and application.
There is a whole section on the tools required to do natural plasters.
He covers a wide range of finishes that include pigments and protective coatings to add some weather resistance to the wall. He emphasize the fact that some natural finishes are actually very toxic.
The last section of the video covers repairs. Chris takes us around the outside of a house where he did natural plaster 10 years ago. He shows how well the walls held up to the cold harsh Ontario winters, and where some repairs would be needed. He does a demonstration on how to repair a crack and how to match colors.
Throughout the video, we see the evolution of the interior of a strawbale construction from the raw walls to the almost finished ones.
I have watched this DVD with pleasure. It is very informative and covers a wide range of topics related to variuos types of natural plasters, as well as techniques and tool used. I have learned a lot from this DVD. I have never done any natural plasters before, so almost everything was new to me. But, I was looking for solution for problem with plaster on my Kuznetsov wood stove, so I figured out it will be a good start. My main focus was on repair section of this video. Encouraged by this DVD I got into work, but unfortunately it seems I have no sufficient skills to fix a plaster on my stove ... Anyway, I disgress. This DVD is worth to have and to watch and I will surely come back to it to learn more, and then to practice more.
Gert in the making
You'll find me in my office. I'll probably be drinking. And reading this tiny ad.
133 hours of video: the Permaculture Design Course and Appropriate Technology Course