Nice that you have opened this forum Tristan.

I have a few questions concerning LEED HC. We have a project where 100% of the space is healthcare facility. It is undergoing interior renovation (alterations to space division, non bearing walls and some MEP alterations).

When reading the Rating Systems Selection Guidance (september 1, 2011) Table 2 on page 9 we "must use LEED for Healthcare". However when looking on page 4 and the "Complete Construction" section, complete construction concerns buildings undergoing major renovation. Major renovation is then again explained as including either work on
- the exterior shell AND/OR
- primary structural components AND /OR
- the core and pheripheral MEP and service systems
AND/OR
- site work

At the moment we fulfill none of the for alternatives above. How should we proceed? Do we really need to fulfill one of them, and if so, is installing green roof considered as work on the exterior shell and is there any guidance on the size requirements of the green roof area?

I hope you good give guidance on how to interpret the requirements and which rating systems we should choose

Cheers,