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.
A south-facing aspect for the shading benefit to apply
A roofed porch or terrace along the south side of the house. It gives an outdoor room that can be used in most weather, and its roof also shades the south windows from the high summer sun. It adds usable space cheaply, with little material.
none
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.