Page 13 - 14th @ Irving Basis of Design (internal)

Preliminary Floorplate Daylight Analysis

On the upper floors, which are relatively unshaded and have narrower floor plates, almost all of the floor area can be lit with
daylighting alone for at least 50% of the year, up to 100% in the perimeter zones. These floors will likely benefit from additional
daylighting sensors for improved performance. The upper floors are likely to have visual comfort concerns on the south perimeter,
as shown through ASE. Occupants in these spaces may experience thermal and visual discomfort. The conditions on the upper
levels of the south façade should be investigated further to help avoid this problem and optimize for daylight quality and solar load
reduction. Some level of shading control, either external or automatic shades, will likely be required to achieve LEED daylighting
credit.
The living rooms and atria on the lower levels bring daylight further into the floorplate, but also allow undesirable direct sunlight.
Daylight management strategies should also be considered for these areas in order to preserve quality daylight in workspaces
below.
Ultimately, daylight quality will be impacted by tenant decisions such as furniture, finish reflections, and layout. Further
investigation will include likely furniture layouts to refine daylight management strategy requirements, and recommendations for
maintaining quality daylight access can be incorporated into the LEED tenant guidelines.

14th @ IRVING WSP
Project No. B1809809.000
RAL COMPANIES & AFFILIATES Page 13