Getting things ready to pour the four inch concrete floor. This will be a suspended floor so, there is a crawl space under it. Many things had to be done before the floor gets poured . First , with help of friends we installed all the under floor sanitary and grey water plumbing. Only the toilets flush to the septic tank, all other waters from the house, washing machine, showers , sinks etc will go to a grey water tank . This will keep all the soaps and grease out of the septic tank and drain field. This approach, should make pumping of the septic tank and replacement of the drain field 40 years out or more. The bathroom wall will not be completed until after the floor is poured so the in wall plumbing is stubbed out above the floor. Also, stub outs are in the floor for the fresh water plumbing which will be completed after the floor pour and the walls go up. Electrical sub outs were done at the time. These are located around the exterior walls, interior walls and in the middle of the floor. We put 4 in floor outlets in the house. Our heating system consist of radiant floor heat and forced air heat and cooling . For the forced air delivery side we installed all metal duct work through out the house and made all the penetrations thru the floor. The furnace returns were scattered through the house and will return the air thru the floor and into the crawl space and back to the furnace with no duct work. So, we do not have any crawl space vent to the outside and our crawlspace will be conditioned , meaning it will be the same temp as the room in the house. The wood floor had to be covered with heavy plastic before pouring to keep the cement separate from the wood. Next it was time to install 3000 foot of half inch pex tubing for the radiant floor heat. Roughly every 6.5 inches on center. then the tubes went back thru the floor to the underfloor manifolds. There will be one inch pex from these manifolds back to the mechanical room to the pumps and zone solenoids .
Floor with pentrations /plastic/ and tubing for radiant floor heat.
Under the floor, Duct work/ plumbing.
One of 3 manifolds for radiant floor heat
Standing in great room looking to loft area.
Standing in Loft area looking down into great room.
The loft area.
