Ashrae Envelope Requirements: 6A
ASHRAE 90.1-2022 building envelope thermal requirements by climate zone and assembly type — maximum U-values, minimum R-values, maximum SHGC for non-residential construction
| climate zone | assembly type | max U value (Btu/h/ft2/F) | notes |
|---|---|---|---|
| 6A | mass_wall | 0.08 | R-15.2ci minimum |
| 6A | metal_frame_wall | 0.058 | Zone 6A: Minneapolis MN; very cold humid |
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