Enerzone Destination 1.5 Installation And Operation Manual page 34

In the case of a known K and thickness of alternative materials to be used in combination, convert
all K values to R by dividing the thickness of each material by its K value. Add the R values of your
proposed materials as shown in the previous example.
Thermal Characteristics of Common Floor Protection Materials*
MATERIAL
®
Micore 160
®
Micore 300
®
Durock
®
Hardibacker
®
Hardibacker 500
®
Wonderboard
Cement mortar
Common brick
Face brick
Marble
Ceramic tile
Concrete
Mineral wool insulation
Limestone
Ceramic board (Fibremax)
Horizontal still air** (1/8")
* Information as reported by manufacturers and other resources
** For a 1/8" thickness. You cannot «stack» horizontal still air to accumulate R-values; you must separate each
layer of horizontal still air with another non-combustible material.
34
Example:
K value = 0.75
Thickness = 1
R value = Thickness/K = 1/0.75 = 1.33
CONDUCTIVITY (k) RESISTANCE (R) PER INCH
PER INCH
0.39
0.49
1.92
1.95
2.3
3.23
5.00
5.00
9.00
14.3 – 20.00
12.5
1.050
0.320
6.5
0.450
0.135
Destination 1.5 Insert Installation and Operation Manual
THICKNESS
2.54
2.06
0.52
0.51
0.44
0.31
0.2
0.2
0.11
0.07 – 0.05
0.008
0.950
3.120
0.153
2.2
0,920**