There are also some limitations about size, use, and location on the property. I'm having a home built, and I'm not sure the contractor is doing this properly. In a structure without such a vapor barrier, you will need 1 sq. The rest can be soffit vents. I don't have sanitary sewage, just possibly gray water from a washing machine overflow or wall leaks.
Most jurisdictions require that basement floor drains be connected to the sanitary sewer.
Currently, I live in the living room of an apartment, and I want to set up a wall. I need to make 2 connecting walls because my room will be in the corner. It's maybe 10ft by 14ft, and the ceiling is 8 ft tall. Cover the panel on both sides with sound board. Attach strips of carpet on the edges of the wall panel and lift the panel into place.