Dear All,

What is the methodology for LEED projects to claim credits (if
possible?) for natural ventilation in dwelling units? In the building I
am working on, only openable windows are used for natural ventilation,
there is no engineered system. Cooling / heating will be provided by VRF
units. Can one make an assumption that occupied spaces will be
ventilated by natural means during the times they are occupied in the
proposed case, while for the baseline case mechanical ventilation will
apply?

Thank you,

Omer Moltay