Hi Mostapha, Chris and group members,
There are two questions about the Green roof issue as I ran the gh file named “Green Roof In Energy Model” . I’ll appreciate it if you give me a hand.
A. Can’t run correctly within Honeybee_Export To OpenStudio as opposite to the Honeybee_Run Energy Simulation. After I uploaded the Green roof construction setting into honeybee library, it still can’t work. The error said:
- Honeybee currently can’t calculate U-Values for Material:RoofVegetation.
Your Honeybee EnergyPlus simulations will still run fine with this material and this is only a Honeybee interface limitation…
Let us know if you think HB should calcualte this material type and we will add it to the list.
- The material type Material:RoofVegetation hasn’t been implemented yet!
Solution exception:openstudio::model::Material const & type is null
**So how could I manage to calculate the influence by green roof in openstudio component as I also tend to calculate Light Control in openstudio component? **
B. I used Honeybee_Decompose EP Construction to check the Green Roof construction’s U-value_SI, it is -1.133198. Why it could be negative, what does it mean when u-value is negative?
Thank you in advance.
Xiaojian