Hi @carlotta,
There are some modeling issues in your model.
The sensors in your grid are facing down. You can check this by the vectors output of the component. You have to flip the floor surface.
But in your case, since you have a room-based model and the grid is based on the floor surface anyway, there is no good reason to not use HB Sensor Grid from Rooms. This component will make sure that the sensors are always facing up.
The way you are adding the apertures to the model will actually add them twice. You are using HB Aperture by Ratio to create the apertures so if you want to change the modifier you should use HB Subface Modifier Subset. In the visualization below you can see that the modifier is changed for the aperture created by HB Aperture by Ratio.
I have attached a modified file that corrects these issues.