Monthly Archives: August 2009

Plaster Tests

Plaster tests are done before plastering to decide on the right mixture of ingredients for the current application. The tests are allowed to fully dry and then are inspected for how well they continue to adhere to the bale wall and whether there are any issues with cracking.

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Spraying the Clay Slip

After the walls have been stuffed and shaped, the clay slip is sprayed onto the walls with a stipple hopper attached to an air compressor. Clay slip is a mixture of bagged clay and water. This step saves time and labour over some more common plaster methods.

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Light Clay Straw Mixer

Rather than laboriously tossing clay slip with straw by hand to make light clay straw for finishing the stuffing of the bale walls, we used this mixer to speed up the process. We could mix large batches of light clay straw in a short amount of time as well as maintain a consistent amount of clay and moisture on the straw.

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I-Beams in the Bale Walls

Wooden I-beams are installed during the straw bale stacking process as anchor points for hanging cabinets or heavy artwork. This must be thought about at the planning stages, because straw bale walls covered in plaster are not strong enough to hold the weight of heavy objects.

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EH