APAJH will intervene to clean the windows based on the following schedule:
- 17 – 23 August: exterior windows of all the buildings on the Villeneuve d’Ascq site (except building C7);
- 24 – 30 August: interior windows of all the buildings on the Villeneuve d’Ascq site (except building C7);
- 31 August – 2 September: exterior and interior windows of building C7.

