Double Skin

Now this is interesting, I came across a similar project in Shanghai. I tend to think the interior glazing to be equivalent to 1 borrowed light already. Each glazing barrier will cause transmission deterioration to the quality of daylight and view.

The double skin facade is the facade and would not be counted as an interior partition, since its not. It would be the same if you had glass exterior shading devices. If questioned, provide images showing that they are views to the exterior. Now if the double skin facade really does obscure the view and not really provide a quality view for the occupant, then this would be going against the intent of the credit.

Guys, I am not sure now, Todd has a point indeed. Gents, are you aware of the new Shanghai Tower being built? Designed by Gensler in collaboration with local architects, it has a double skin but the space between the exterior and interior glazing, is actually usable space, for public use. Beezer, is your project of similar application? Todd, in this instance will the interior skin counted as internal glazing therefore deemed to be borrowed light for occupants in inner core? What is the difference between a private cell adjoining a core wall with glazing partition facing the external skin?

Steve, if the space between the two faces of glass is occupied, then the interior layer would be considered an interior partition of glass and not the double facade. Typically, a double facade is not occupied. So with the Shanghai Tower it would not be considered the facade. Not sure what you are asking in your second question.