Tring to decide if i want to hook up the floor heat or go with a diffrent option. I am wondering about heat loss from my slab mainly at the garage doors. It is a 38X52 with 9 loops of 1/2" pex each a litle over 200ft in lenght. Would be using a modulating electric boiler.
Foundation walls were poured in the 2" white styrofoam forms that go down to the footing. I left all the foam on the inside foundation stem wall from the footing to the top of the stemwall that ends 16" above the concrete floor. I removed the foam from the outside foundation wall down to grade, so someof the stem wall exterior is exposed to the outsie temps. Underneath the whole slab I have 2" pink foam, except the 3x3 areas where the two post lift will be and around the floor drain. At the two 12' garage doors and the 36" walk door the slab is laying directly on the foundation wall to the outsde of the foundation wall leaving that 6" outside of the garge doors heated and exposed to the cold temps. Before pouring the driveway a expansion foam strip was put between the driveway and the floor, so that should be somewhat of a thermal break there.
The slab is almost all inside a insulated 2" perimeter. I am concerned with the fondation sucking alot of heat from the concrete mainly from under the doors where it is outside and also laying directly on the foundaion wall. The concrete around the foor drain and hoist pads is layng on dirt. Is that of much concern?
Any input is appreciated.
Foundation walls were poured in the 2" white styrofoam forms that go down to the footing. I left all the foam on the inside foundation stem wall from the footing to the top of the stemwall that ends 16" above the concrete floor. I removed the foam from the outside foundation wall down to grade, so someof the stem wall exterior is exposed to the outsie temps. Underneath the whole slab I have 2" pink foam, except the 3x3 areas where the two post lift will be and around the floor drain. At the two 12' garage doors and the 36" walk door the slab is laying directly on the foundation wall to the outsde of the foundation wall leaving that 6" outside of the garge doors heated and exposed to the cold temps. Before pouring the driveway a expansion foam strip was put between the driveway and the floor, so that should be somewhat of a thermal break there.
The slab is almost all inside a insulated 2" perimeter. I am concerned with the fondation sucking alot of heat from the concrete mainly from under the doors where it is outside and also laying directly on the foundaion wall. The concrete around the foor drain and hoist pads is layng on dirt. Is that of much concern?
Any input is appreciated.
