The earthbag chook house- rubble stem wall

I know… I haven’t finished the bathroom walls yet. It has been years since I had any time or energy to attack the building of the bathroom. We have showered outdoors through another two Winter’s of cold wind and frosty toes. However… the chook house needs to be built, and I really want to build some fire resistant animal shelters. Once it is rendered, earthbag walls are fire proof and roof structures can be made fire safe (if not totally fire proof), so I decided to build with earthbags again.

The basic chook house design criteria is as small a building as I can make and still be functional (I only want to keep a few chooks now we are using fewer eggs). I decided on a curved shape (like half an egg) with a high ‘window’ for the chooks to get in and out of, and a small, tight fitting door on the Southern side (facing the humpy) made from thick, solid wood. I will probably make a space in the wall that can be accessed from the outside as nesting boxes (with a solid wood, tight fitting hatch) and include some pipes near the ceiling with wire mesh covers to act as ventilation. This will be a fairly dark, dim space for the chooks to sleep in and lay their eggs, which is what they prefer anyway, there should be enough light to see when dawn comes though.

I decided to use a rubble/rock stem wall, just because I wanted to see how it will perform with earthbags stacked on top. I spent a few days collecting rocks from our property, then my daughter and I dug a shallow trench in the shape we wanted the chook house to be.

The start of the trench
Loads of rocks on the farm ute
Waiting to become a wall
My daughter has a talent for building rock walls it seems
The trench for the rest of the walls was dug slowly
Ready for walls
Nearly there
Stage one complete

Hopefully the earthbags will lay on the top of the wall, this should be high enough to keep the rain water off the earth rendered walls. The gaps between the rocks will allow mice and snakes to get into the chook house (to be avoided if possible), so I am planning on rendering over the rocks with something that will seal the gaps, maybe a cement based render?

The floor of the house will probably be an earth floor, similar to what we will have in the house. It will give me a chance to play with the concept and learn how to make a good, hardwearing floor.

I am planning on a living roof on the chook house, this will hopefully insulate the chooks inside from heat and cold, be more fire proof and will allow me space to plant pumpkins. I will have to find a way to seal the eaves of the roof so they are less likely to burn, but that problem is in the future. For now, I have finished the stem wall, the bags for the wall come next, then I have to think about how to frame a door, an access window and nest boxes.

2 thoughts on “The earthbag chook house- rubble stem wall

  1. Impressive. I’m fascinated by stone and earth walling, the oldest type of building. There are neolithic building remains all over the UK of very similar construction, so it clearly stands the test of time! Lucky chickens 😊

    Liked by 1 person

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