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228 Stair Vault

May be part of Staircase as a Stage (133), Staircase Volume (195), Efficient Structure (206), Good Materials (207).

Conflict

Within a building technology which uses compressive materials, as much as possible, and excludes the use of wood, it is natural to build stairs over a vaulted void, simply to save weight and materials.

Resolution

Build a curved diagonal vault in the same way that you build your Floor-Ceiling Vault(219). Once the vault hardens, cover it with steps of lightweight concrete, trowel-formed into position.

May contain Floor Surface (233), Soft Tile and Brick (248), Child Caves (203), Closets Between Rooms (198), Floor-Ceiling Vaults (219).