ME300 - Installation and Operation Manual
15
3.4
R-Value Calculations
There are two ways to calculate the R factor of the floor protection. First, by adding the R-values of the
proposed materials or if some K and thickness values are given, by converting them to R values.
To calculate the R factor for a composite floor protection made of a combination of alternative materials,
simply add the R-values of those materials. If the result is equal to or larger than the required R value, the
combination is acceptable. For R-values of some selected materials, see Table
Thermal Characteristics of
Common Floor Protection Materials
.
Example:
Required floor protection R of 1.00. Proposed materials: four inches of brick and one inch of
Durock
®
board:
Four inches of brick
(R = 4 x 0,2 = 0,8) plus 1 inch of Durock
®
(R = 1 x 0.52 = 0.52).
0.8 + 0.52 = 1.32.
This R value is larger than the required 1.00 and is therefore
acceptable
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.
Example:
K value = 0.75
Thickness = 1
R value = Thickness/K = 1/0.75 = 1.33
Summary of Contents for ME300
Page 12: ...12 ME300 Installation and Operation Manual ...
Page 17: ...ME300 Installation and Operation Manual 17 CLEARANCES A 16 406 mm B 46 1168 mm C 8 203 mm ...
Page 33: ...ME300 Installation and Operation Manual 33 Direct installation Exterior offset installation ...
Page 60: ...60 ME300 Installation and Operation Manual APPENDIX 2 EXPLODED DIAGRAM AND PARTS LIST ...
