Thanks for your insight. It does make sense that the glazing wouldn't need to be contiguous but I had a GBCI reviewer make a remark that made me think that it needed to be. Now I only need to understand the direct line of sight at 42", and whether glazing beginning at 46" and going up to 90" would hinder meeting this portion of the requirement. When I am reading the requirement they refer to "obstruction to the perimeter glazing". Looking at Figure 1 on page 567 of the BD+C reference manual they show the glazing beginning below 42" but the intent of the credit is to be able to see over obstructions and have a view to the outside. I would love to hear from anyone who pursued this credit with glazing beginning above 42" and either did or did not achieve this credit.