We have a project in which a building is having longer side on NE and SW & shorter side on NW and SE. The longer side has horizontal projection over all its windows but shorter side does not have projection over the window in toilet.
The client wishes to use a glass with SHGC 0.47.
For longer sides the glass is compliant with the requirements of effective SHGC.
It is not mandatory to meet SHGC values in non habitable areas such as toilets.