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5.4
THERMAL CHARACTERISTICS OF COMMON FLOOR PROTECTION
MATERIALS*
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 later
of horizontal still air with another noncombustible material.
MATERIAL
CONDUCTIVITY
(k) 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
50
RESISTANCE (R) PER INCH
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**
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