Growth rings: Where there are clear seasons, growth can occur in a discrete annual or seasonal pattern, leading to growth rings; these can usually be most clearly seen on the end of a log, but are also visible on the other surfaces.
A Radiant Slab
We are ready for the next step: pouring a 4" slab of concrete as our first floor...but first a few shots of the 'guts' inside.
Red plastic water tubes were looped to cover the whole area, and to back-up each other if one goes bad. You can see all the pipes come up where our utility wall will be. This will be our primary source of heating.
Looking out the south side doorway
A grid of rebar will provide strength and handle tension in the slab.
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