Glenn Herbert wrote:I can't give numerical quantities, but light straw-clay is typically chopped straw barely wetted with clayey water. I expect a 25 pound bag of the cheapest generic clay from a ceramic supply store would go a long way. You would want to cut it into bits and soak and stir to get it smooth and watery. A 25 pound block will make dozens of gallons of straw-wetting liquid. Experiment with small batches to get a feel for ratios.
A pottery studio will have a recycle bucket where waste clay and slop is kept to settle out and be reclaimed. A few buckets of that fresh and unprocessed may be free or nearly so, and reduce your work to prepare it.
Mike Haasl wrote:You could do slip straw or some other natural mix of an insulating material and watered down clay. It's a good R value and cheap. Basically chopped straw mixed in a wheelbarrow with very watery clay. Put a temporary form board on the inside surface of the studs and pack the straw in there. In a day or two when it's dry, move the form up and do more.
Whatever insulation you use, I'd definitely put plastic to the inside of it to keep the humidity from the greenhouse away from condensing in the insulation. And tape the joints of the plastic pieces. If you cover that plastic with something that could rot, you may be well served to put a spacer between them so condensation on the plastic can drip down and not sit against drywall or wood paneling.
Anne Miller wrote:Why not disguise the straw bales?
That is a really cute building I like the diagonal pattern.
Maybe disguise the bales with a lattice with some veggies vines or flower vines.
Anne Miller wrote:Have you thought about using hay/straw bales on the north wall?