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This is our seashell shaped steam room at The Gibran Center. Outside behind was a wood fired boiler that provided steam through a crock full of fresh herbs. Made of ferro-cement.
InThailand we used cement inside and out covered with paint. We intend to use natural plaster on the interior of future domes. I believe AirCrete makes a good base for any plaster. What moisture issues are you concerned withl
Aircrete has similar qualities as concrete when it come to water. Water doesn't damage the material but it's recommended to use an exterior sealer to prevent moisture wicking into the surface.
AirCrete was developed in Sweden in the 1920s. It's used in cold climates around the world. Type II and V cement are sulfate resistant and can be used to make AirCrete.
