A project team conducts a daylight simulation for an office building and the result is...

According to Feature L06: Daylight Simulation, part 1 of the WELL Core requirements, the project team must conduct daylight simulation calculations to ensure indoor daylight exposure for occupants1. One of the metrics used to evaluate daylight exposure is spatial daylight autonomy (sDA300,50%), which measures the percentage of floor area that receives at least 300 lux [28 fc] of daylight for at least 50% of operating hours each year2. To increase the sDA300,50% value, the project team can specify window glazing with higher Visible Transmittance (Tvis), which is the fraction of visible light that passes through a glazing material3. Higher Tvis values mean more daylight can enter the space and reach the work surfaces, thus improving the daylight simulation result. The other options are not likely to help meet the daylight simulation requirement, as they either do not affect the amount of daylight entering the space (A and B) or reduce the floor area that needs to meet the requirement (D).

References: = Standard | WELL V2, Daylight modeling | WELL Standard, Using daylight modelling to verify compliance with the WELL Building Standard