posted 5 years ago
I think I might have found a use for Papercrete.
If it has an R factor of 2 per inch of depth, that makes it equivalent to spray-insulation. I am currently living in an old Tiny House that has a stone foundation, and so the cold comes through that rock, and then makes the floor under our feet cold. A person cannot put insulation under the floor joists though because it does not really stop the cold infiltration. The only real way to deal with the cold is to put spray insulation on the rock walls in the basement. This stops the cold transfer, but allows the "heat" from the basement floor to rise. That is because being deeper than 4 feet, that soil is always 57 degrees. It is not exactly warm, but warmer then the frozen soil along the walls.
I was going to spray-insulate my rock foundation this fall, as this would keep the cold from coming in from the rock, but allow the warm air from the floor to rise, effectively making my floors 57 degrees instead of 31. It also keeps my pipes from freezing in my basement.
But Papercrete is almost ideal. It is mold-proof, highly insulative, and hopefully cheap to produce. If I can mix it in my cement mixer to break down the paper fiber, and mix up the papercrete itself, it might work well for me.