I heard about this on NPR the other day. It's a cool idea. It reminds me of the old plaster casts that were made of strips of gauze that had been pre-saturated with plaster powder. You just add water and put the gauze on the broken arm or whatever.
The best part of this shelter is buried deep in the article and is easy to miss.
Quote:
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Concrete Canvas comes folded in a sealed plastic sack. The volume of the sack controls the water-to-cement ratio, eliminating the need for water measurement. You literally just add water.
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Normally, it takes some experience to know how much water to add to concrete to get the proper strength. Too much or too little, and you have a weak structure. Possibly a dangerous structure. This shelter system is truly foolproof.
It's also cheap.
I wonder how tall it is. At $2100, it would make a pretty cheap car port. I might buy one at that price. I wonder what the neighbors would think.