APPENDIX C – EFFECTIVE ASSEMBLY R-VALUES
C1.
Clear Field Thermal Performance Table C.1: Clear Field Effective Assembly R-Values with Uninsulated Steel Stud Wall Assembly Effective R-Value Clip System
hr·ft2·oF/BTU (m2K/W)
Nominal Insulation hr·ft2·oF/BTU (m2K/W) 24” Vertical Clip Spacing
36” Vertical Clip Spacing
48” Vertical Clip Spacing
T100
R-16.8 (3.0)
R-16.4 (2.88)
R-17.4 (3.06)
R-17.9 (3.16)
T125
R-21.0 (3.7)
R-19.2 (3.38)
R-20.6 (3.63)
R-21.4 (3.77)
T150
R-25.2 (4.4)
R-21.7 (3.82)
R-23.5 (4.15)
R-24.6 (4.33)
Table C.2: Clear Field Effective Assembly R-Values with Steel Stud Wall with R-12 Batt Assembly Effective R-Value Clip System
hr·ft2·oF/BTU (m2K/W)
Nominal Insulation hr·ft2·oF/BTU (m2K/W) 24” Vertical Clip Spacing
36” Vertical Clip Spacing
48” Vertical Clip Spacing
T100
R-12 batt + R-16.8 (2.11 batt + 3.0)
R-22.2 (3.92)
R-23.2 (4.09)
R-24.1 (4.24)
T125
R-12 batt + R-21.0 (2.11 batt + 3.7)
R-25.0 (4.40)
R-26.6 (4.68)
R-27.5 (4.84)
T150
R-12 batt + R-25.2 (2.11 batt + 4.4)
R-27.2 (4.80)
R-29.4 (5.19)
R-30.6 (5.39)
Table C.3: Clear Field Effective Assembly R-Values with Concrete Wall Assembly Effective R-Value Clip System
hr·ft2·oF/BTU (m2K/W)
Nominal Insulation hr·ft2·oF/BTU (m2K/W)
24” Vertical Clip Spacing
36” Vertical Clip Spacing
48” Vertical Clip Spacing
T100
R-16.8 (3.0)
R-16.2 (2.85)
R-17.0 (2.99)
R-17.4 (3.07)
T125
R-21.0 (3.7)
R-19.2 (3.38)
R-20.3 (3.58)
R-21.0 (3.70)
T150
R-25.2 (4.4)
R-21.2 (3.82)
R-22.9 (4.02)
R-23.7 (4.17)
Table C.4: Clear Field Effective Assembly R-Values with Concrete Block Wall Assembly Effective R-Value Clip System
Nominal Insulation
hr·ft2·oF/BTU (m2K/W)
hr·ft2·oF/BTU (m2K/W) 24” Vertical Clip Spacing
36” Vertical Clip Spacing
48” Vertical Clip Spacing
T100
R-16.8 (3.0)
R-16.4 (2.89)
R-17.3 (3.05)
R-17.8 (3.13)
T125
R-21.0 (3.7)
R-19.5 (3.44)
R-21.4 (3.77)
R-21.4 (3.77)
T150
R-25.2 (4.4)
R-21.6 (3.80)
R-23.3 (4.10)
R-24.0 (4.23)
C2.
Slab Edge Thermal Performance
Table C.5: Effective Assembly R-Values including the effects of an insulated slab edge for 9 foot floor to ceiling height with uninsulated Steel Stud wall
Clip System
Nominal Insulation
Assembly Effective R-Value with Slab Edge hr·ft2·oF/BTU (m2K/W)
hr·ft2·oF/BTU (m2K/W)
24” Vertical Spacing
36” Vertical Spacing
48” Vertical Spacing
T100
16.8 (2.96)
15.3 (2.69)
16.5 (2.91)
17.2 (3.03)
T125
21.0 (3.70)
17.7 (3.12)
19.4(3.42)
20.4 (3.59)
T150
25.2 (4.44)
19.8 (3.49)
22.0 (3.87)
23.3 (4.10)
Ψ Slab Edge Linear Transmittance BTU/hr·ft·oF (W/mK)
0.029 (0.050)