Hello,
we are working on the project of a new commercial building where green roof is about 50 % of the whole roof.
There are some HVAC installations consisting of a mechanical part (located on the non green roof) and of a ductwork (located mostly above green roof and partially above non green roof).
How can we handle this situation? Should we deduct all the HVAC installations of the roof area OR should we deduct the mechanical parts only? What do do with the ductworks above the green area?
We would prefer to deduct all the HVAC or to deduct mechanical parts only for reduction of a roof area. Is it correct?
Thanks for any advice.
Petr