Applicable to H1 Energy Efficiency only, each window can be adjusted to allow a fraction of the window area to be openable for natural ventilation.
Add Glazing Openability by selecting the Aspect with glazing in the drawing space. Then select '+ Openable Window' and set the desired fraction of the window area to be openable for natural ventilation.
For those unfamiliar with Glazing Openability, the following % can be used for each window type.
|Type||Openable (half fixed, half openable)||Openable (full)|
|Casement / tilt’n’turn||45%||90%|
|All window types with safety restrictors||10%||10|