Dear all,

We have an office building which is predominantly cooled by natural ventilation. Natural ventilation is being controlled by the operable windows through BMS. We are doing the thermal simulation in IES-VE. We have gone through the previous  discussions from LEED USER and have checked the " LEED advance modelling guide". However we have the following queries;

1) In Baseline , the system will be modeled according to Appendix G. ie. the office areas (which are natural ventilated) have mechanical cooling ?

2) How do we model the proposed natural ventilation strategy for LEED and ensure unmet load hours criteria is adhered to ?

Thanking you all in advance.

Looking forward to the replies

Best Regards