Floors account for approximately 10% of a buildings heat loss, so they need to be well insulated as well as water tight.

Ground floors are now typically made by pouring concrete on top of a waterproof membrane, whilst suspended floors are made of either concrete or wooden beams.

The main alternatives to a cement floor are:

Limecrete flooring.

This basically uses lime rather than cement and can also utilise non-quarried materials instead of sand and chippings.

Rammed earth flooring.

This involves using natural earth.

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