Cobbing a home with Leen


We’re going for a spontaneous visit to Leen. Leen builds with cob. We heard it’s very experimental. So let’s go see! We’ve unexpectedly arrived here…. …at this construction site. Leen welcomed us. What are you making here? I’m making an ‘eco-art construction’. With local materials, as much as possible. And with salvaged materials. It’s a home for us in in the winter.
Because our other house burned last fall. Here we are at our mountain. The black stuff lies at the surface, and this is
the stuff that was dug up by a machine. It used to be a forest. The trees burned. So this seemed like a good place to build a new house. Why build in this way and not with common bricks? I used to have some caravans here
and I saw what happened to it after the fire. Digusting mush of burned plastic and metal. All the burned plastic flew into the air. And it all rained down in the next town. So I want to keep my eco-footprint small. Also I love the energy of this material. The wool kind of separates an outer and inner wall. So we put it in between those two layers. The idea is…. … to keep the thermic mass relatively low. And separate the walls in layers to avoid condensation. It’s an experiment. A volunteer started the foundation. But when we started building…. We started building with balls of clay. But that was way too slow. So I found the Rammed Earth technique on YouTube. I saw how they did this in India. We’ll now remove the formwork. With cob we can do it when it’s still wet. Unlike concrete. Especially with rammed earth we can remove it immediately. Why are you here on the toilet? Every building site needs a toilet. Here we experimented with a reciprocal roof. It’s very strong. Just made with twigs from the forest. It easily supports my weight. I’ll use this on the house, but with big beautful wood. With a nice finish. The last pole supports the first one. The steeper the roof, the smaller the hole. A flatter roof gives a bigger hole. So we put some wool on one side. So we’ll fold it back and put a new layer of cob on top. En dan gaan we zo kloppen. Zo hard als je kan. It’s fun in the beginning… But one brick like this takes… four hours? You don’t have to go the gym anymore with a project like this. Yes, when you have a farm you don’t need the gym.
– I remember that vividly from my youth. Learning by doing. Oscar, I think we have to befriend a lot of volunteer,
when we want to do something like this. You are wetting your floor here. Why? Because it gets powdery otherwise. Usually, the cob get’s mixed with water before making a floor. But we experiment with just putting the cob here. And flattering it by walking and working on it. It gets really rock hard. So I think it’s working. I put a layer of wool underneath as well for insulation. Next week we’ll have a trance party here. My daughter will invite her friends and we’ll party
to flatten the floor. That’s Oscar on camera suddenly.
-Oscar is also going to mash. Show that he is a strong guy. Put some anger in it! Then it suddenly compacts a lot more still! Oscar, what is this high-tech tool you’re using? Yes, this is a rammer 2.0.
Designed with unique bark. Behind us the work continues,
and now you know how fun it is. We hope to do something like that in the future. Do you see yourself doing this? What does your dream house look like?
– Let us know in the comments below. And while you’re there you might as well leave a like. We’ll continue to the next inspiring project. And we hope you’ll close your computer to go outside! See you next time! Bye.

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