Worhs in the ENS During the Academic Year

Restoring the building of the ENS during the academic year, is so bothering for students and teachers.
First of all, the workers confuse the teachers and the students by making noise that disconcert them. Moreover, they bother students with their tools, when they meet each other in the corridors. Students are also worried of any accident that can happen. Forexample, in many occasions, the painters stained students' clothes accidenly. An other important point, The view of the ENS became very bad. The courtyard is always untidy; sand, cement and tools everywhere.
In deed, works during the academic year discourages students and teachers.