Fenestration Performance: 1
ASHRAE Chapter 15 fenestration U-factors (W/m²·K) for windows, skylights, curtain walls, and doors by glazing configuration and frame type. Covers single through quadruple glazing with air, argon, and krypton fill, low-e coatings at various emissivities, and all major frame materials. Source: ASHRAE Handbook Fundamentals 2021 Tables 4 and 6.
| glazing id | frame type | gap fill | glazing category | glazing type | num panes (dimensionless) | u factor Wm2K (W/(m2·K)) |
|---|---|---|---|---|---|---|
| 1 | curtainwall_alum_no_break | air | Single Glazing | 3.2 mm glass | 1 | 6.86 |
| 1 | curtainwall_alum_thermal_break | air | Single Glazing | 3.2 mm glass | 1 | 6.27 |
| 1 | curtainwall_structural_glazing | air | Single Glazing | 3.2 mm glass | 1 | 6.27 |
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