After investigating a number of options, the retail partner’s design team will build experience and confidence in incorporating a growing repertoire of daylighting options into their store designs. APPENDIX C: Retail Daylighting Survey Findings A brief summary of the observations from each survey location is included below. C.1 Retail Store, Union Square, San Francisco This six-story urban store occupies a full city block. The first floor has several display windows on each side, while the upper floors are fully glazed. Set back 1-3’ behind the glazing is a layer of drywall with 8’ square cut into it. “windows” Because of the setback, daylight does not effectively reach the merchandise inside the store, and merchandise was often seen in silhouette against windows that produce a high level of contrast. Direct sunlight illuminated merchandise on the south side of the store, making it more visible from the street, but the highly reflective glass make window displays on other sides difficult to see during the day. Illuminance levels in this were the highest of all the stores visited, ranging from 50-80 of ambient light with higher levels under accent lighting. Figure : Daylight Conditions at the Union Square Retail Store C.2 Bloomingdale’s, San Francisco This five-story urban location is fully glazed along the long southeast façade. This is used largely as an advertising opportunity to potential viewers from the parking garage across the street. Measured illuminance levels were lower than those in the previous retail partner location due to fewer fixtures and generally lower lamp wattages. Illuminance levels ranged from 35-50 foot-candles.
After investigating a number of options, the retail partner’s design team will build experience and confidence in incorporating a growing repertoire of daylighting options into their store designs. APPENDIX C: Retail Daylighting Survey Findings A brief summary of the observations from each survey location is included below. C.1 Retail Store, Union Square, San Francisco This six-story urban store occupies a full city block. The first floor has several display windows on each side, while the upper floors are fully glazed. Set back 1-3’ behind the glazing is a layer of drywall with 8’ square “windows” cut into it. Because of the setback, daylight does not effectively reach the merchandise inside the store, and merchandise was often seen in silhouette against windows that produce a high level of contrast. Direct sunlight illuminated merchandise on the south side of the store, making it more visible from the street, but the highly reflective glass make window displays on other sides difficult to see during the day. Illuminance levels in this were the highest of all the stores visited, ranging from 50-80 of ambient light with higher levels under accent lighting. Figure : Daylight Conditions at the Union Square Retail Store C.2 Bloomingdale’s, San Francisco This five-story urban location is fully glazed along the long southeast façade. This is used largely as an advertising opportunity to potential viewers from the parking garage across the street. Measured illuminance levels were lower than those in the previous retail partner location due to fewer fixtures and generally lower lamp wattages. Illuminance levels ranged from 35-50 foot-candles.