The best concrete mold you can use to build a home is a solid cement mold, but it’s not a permanent mold.
That’s because the inside of the mold is actually a porous membrane, meaning it can be sealed off from the outside environment by a sealant, such as an oil or paint.
And while the inside layer is a hard-to-clean concrete, the outside layer is porous cement.
If you use a cement mold for your home, you can expect it to last for decades.
You can learn more about cement molds.
