This is definitely a decision that would have horrible effects on engineering students, especially those trying to get projects done. Some of the software available in the labs is also there for graduate students (e.g. Silvaco for Eng Phys / Elec / Materials people) and losing access on weekends would be a definite pain.
The email sent out to Faculty and Staff had an extra addendum part to it which gives a little more context:
"If any Faculty/Department would like to have one of the remaining centers (BSB, JHE or KTH) open on a weekend, this will be accommodated but will include the cost of staffing the center. Please provide 2 weeks notice to have one of the labs open on a weekend, as staffing needs to be arranged by sending an e-mail request to
[email protected]"
It sounds like this has a minimum to do with efficiency and instead is primarily about offloading costs / budget cuts onto departments.