Crews will continue late night work at Gelman Library for the third time this week as finals week creeps closer.

Students working in Gelman Library should expect to hear drilling after 10 p.m. Thursday – though the library’s website said it would be quieter than the jackhammering heard earlier this week.

The jackhammers pounded the library’s roof Monday night into Tuesday morning to replace the building’s air conditioning units, after an early heat wave overworked the system in mid-April. Work continued Tuesday night as well, though it  was not as loud as the previous night’s jackhammering, according to the library’s Twitter feed.

It is unclear if the Thursday night work is part of that cooling system upgrade, and University spokeswoman Michelle Sherrard did not immediately return a request for comment.

The University opened Duques Hall overnight all three nights and offered snacks and earphones to students as they finished up classes. Reading week officially began Thursday.