Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
Passive
Note: Cost, carbon and footprint are broad judgements against comparable building approaches, not measured figures.
Ceiling height sufficient for a mezzanine level
A sleeping platform raised up under the roof or high in a tall room, reached by a ladder or steep stair. The floor space underneath is freed for living, storage or work. A small house gets a bedroom without needing more floor area.
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The only option catalogued for this need so far, so there is nothing to compare it against.
No sources recorded yet.
We don’t list sizing or quantities, as the yield of each technique depends on the quality of its build. The catalogue compares options but doesn’t dimension them. Regulatory notes are indicative, with a French example, and need to be confirmed locally.