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Suspended Light Weight Concrete
Considerations
This type of floor is ideal for off peak night time heating, for solar
installations and heat pumps since the high thermal mass and the direct heat
transfer allows for low water temperature operation.
With suspended poured floors additional bearing loads and the concrete height
must be accommodated for. At a 2" depth the weights are:
|
Type
of Material |
Weight at 2"
per sq. ft. |
Specific Heat
Btu / (lb • ºF) at 85º |
'K' Factor
Btu / (h • ft2
• ºF) |
| Concrete |
25 lbs. |
.200 |
|
| Lightweight concrete |
19 lbs. |
|
|
| Gyp-Crete |
17 lbs. |
.223 |
4.75 |
The recommended installation procedure:
- Sweep (vacuum if possible) floor surface
- Snap chalk lines according to tubing layout
- Place
6 mil polyethylene vapor barrier on floor
- Place
Lift Clips
on center of chalk line, in the direction of the tubing
layout and staple both tabs using the
WF-1500 Air Staple Gun
- Snap tubing in place according to design
- Pouring 2" of fine aggregate concrete
A concrete floor is recommended for best heat retention and heat transfer. Many
attractive colors and pattern are available.
www.decorativeconcreteinstitute.com
Any floor covering can be used as desired, however, the best performance can be
achieved with concrete tile, vinyl, and carpet respectively.
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