Volunteers have been painting and cleaning at Roncalli Junior and Senior High School, which is undergoing a renovation.
Students, parents, teachers, coaches, alumni, clergy members, school board members, and the new president have pitched in this summer, said coordinator Todd Zens.
Anywhere from 20 to 140 volunteers a night have been working, and Zens expects around 30,000 volunteer hours will be logged by the time the project is finished.
"It's just an amazing testament to their commitment, to their loyalty, to their willingness to help," James Hamburge, who started this summer as the school system's president, said of the volunteers.
The renovation project at Roncalli includes installation of a geothermal heating and cooling system, replacement of all windows and construction of new boys' and girls' bathrooms in each wing.
Volunteers will paint about 150 rooms, Zens said.
Aug. 19 is the final day for the contractor, JDH Construction, and school is on target to start Aug. 25, said Zens, who is also volunteering to help oversee the construction.
Hamburge and Zens said multiple generations of families have volunteered together. They also said the Rev. Joe Holzhauser has been working diligently with a group of students, and recent graduates have also helped.
Zens said before the project, the school had no air conditioning, and kids often had to wear coats in the wintertime because of the old windows and old heating. Now the building will be much more energy efficient, he said.
Volunteer Melissa Barnett said the school was in dire need of remodeling and that it's exciting to be a part of the project.
Barnett was painting this week with her daughter, Roncalli seventh-grader Julia Barnett, and other family members. Her kids can appreciate coming to school a little more, she said.
Roncalli parent Scott Holzer, who was also painting this week, said his kids are the main reason he was volunteering. Holzer said parents take a vested interest in their kids.
"It's a pretty close-knit community," he said.