Flooring
Underfloor heating being laid by Jay A hobbit door to access under the stairs
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Insulation!
Our objective was always to be as green as we could. Wool insulation would have been wonderful but it was too expensive and too bulky. And the first layer of floor covering
Plumbing the depths
The plumbing runs underneath the floor which is to be tiled. In extremis there are trap doors for tiny people to address any issues Getting wired
