Building properties/ short descriptions of "volumetric airflow rate" and "g value total" would help

[lillaa]

Hi

In the exercise 1- Refurbisment under the _building properties/ I had the feeling that a small description (like by the PV panels) would be very helpful by some of the settings.

1. Under the building properties/ envelope there is an option where you can set the g value and the g value total of the window. What is the difference? I have never heard about "g value total" and haven't found anything on the internet. (It is probably my fault).

2. Under the ventilation, you can set the volumetric airflow Well, I have very little knowledge about this field, but probably this is generally true for architects. Once, I used another platform to calculate the airflow rate of my project (https://kanalnetzrechner.de/, see image below) where the usual volumetric airflow was much higher for normal spaces - between 9 -75 m3/ m2h. Maybe, therefore, a small description of the values and options would help enormously, to get a feeling about what you are changing and what the consequences are. (e.g. bigger ventilation pipes, more noise according to the higher flow rate etc.)

https://kanalnetzrechner.de about volumetric air flow:

[maxenceryan]

hey! Thanks for the feedback.

1. g_value total is meant to be the g_value for a window+shading, which is why it is lower (some blinds are not fully opaque so light comes through). I agree the naming may be confusing so we will have a look

2. Yes more descriptions of the parameters could be helpful, thanks for your perspective :) Regarding consequences, that's an interesitng point. We started to look at this concerning other parameters to give some kind of warning when changing a value, so perhaps we can use this approach for more parameters