A month after students at South Oak Cliff High School walked out in protest of the condition of the school, students said repairs still need to be made.
"Repairs have been made, but at the same time, some repairs aren't actually working," said senior Landon Finley.
Dallas Independent School District officials told NBC 5 Wednesday that the school's heating system struggled to keep students warm Tuesday.
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"The school had heat yesterday, but there were challenges in regulating the temperature due to issues with the controls. Adjustments have been made, and contractors will be on site daily to make sure the system is operating correctly," the district said in a statement.
Students who organized the December protest said they're grateful for the work the district completed over the Christmas break on the 64-year-old facility, but they believe more needs to be done to make the school a suitable learning environment.
"At times it's very uncomfortable for our teachers to have to teach, and (for) students that have to learn," said senior David Johnson. "No one wants to have to work and learn in a hot environment, or have to work and learn in uncomfortable places."
Thanks to a voter-approved bond package, Dallas ISD will have $1.6 million to spend on schools throughout the district. The portion that will be allocated for South Oak Cliff will not cover all of the repairs. Some students wonder whether it would be better to use the money to build a new school.
"It's always going to have problems because it's broken, so why not just get something completely new?" said senior Lizzett Godinez.
The district is in the process of completing $3.8 million in upgrades to the school's heating and cooling system. Officials hope to use $10.7 million from the 2015 bond package to pay for repairs.
"The fast fixes are pretty much done, but it's going to take a lot more than that for us to get comfortable in our school," Finley said.