DETROIT, MI -- Safety and health inspections conducted at 11 Detroit schools earlier this month confirmed reports of rodent and mold infestations at various buildings.

Teachers have been holding protests that have intermittently shut down dozens of schools in recent weeks in an attempt to call attention to poor building conditions and other grievances.

The protests led Mayor Mike Duggan to tour several schools, and after seeing a dead mouse and children enduring cold classroom temperatures, he ordered formal inspections on school buildings.

Inspection reports for 11 schools were released Monday, the same day a judge declined to immediately order a halt to teacher "sick-out" protests, while about 150 students at Cass Tech High School walked out in a demonstration supporting their teachers.

(Related: 'Illegal' teacher strikes common in Michigan long before Detroit Public Schools sick-outs)

The city inspections revealed water-damaged ceilings, walls and floors, evidence of rodents, malfunctioning elevators and broken windows, heating systems and plumbing fixtures at various buildings.

Mold that could affect air quality was found at Spain Elementary School, according to one health inspection report.

"Mold growing under wood flooring in the gym, with possible diffusion of mold spores throughout the building was observed," the report reads. "Evidence of vermin infestation, including fecal matter and carcasses were observed in various rooms."

The city expects inspections of all school buildings to be complete by the end of April.

"We are giving school officials a reasonable timeline to correct the deficiencies, and we hope they will," Duggan said in a statement. "If they don't, we are going to take prompt legal action to enforce compliance.

"I don't want there to be any confusion. A claim of a shortage of funds is not a defense to violations of building or health codes for any building owner. We're not going to allow our children, DPS employees, or the public to continue to be subjected to substandard conditions."

Detroit Public Schools Emergency Manager Darnell Earley spoke briefly Monday, before being shouted down by protesters, about his opposition to teacher sick-out protests, saying students need their teachers in the classrooms, even as discussions on improving conditions at schools continue.

"That's the bottom line. Teachers need to be in the classrooms," Earley said. "Our students need the educational experience of those teachers."

The district has been under state-controlled emergency management since 2009. The longstanding state takeover is a key grievance listed by protesting teachers and students.

The governor's office has been promoting a plan to pay off the district's burdensome debt and launch a new district, along with a commission that would oversee all Detroit public and charter schools.

But the plan would likely cost other districts across Michigan, and hasn't gained much support in Lansing.

Update: District officials said a broad plan to address the violations uncovered in the inspections will be crafted with help from the state.

"Since inspections began, the District has cooperated fully with the City and its inspectors," said district spokesperson Michelle Zdrodowski in a statement.

"The inspection reports have called out a variety of issues and the District is developing plans to address the corrections requested in each school. In a majority of cases, the corrective actions requested are those that can and/or are already being addressed. There are, however, a number of corrections that are more extensive and costly... The District will also be taking the inspection reports that it receives from the City and meeting with the State's Department of Licensing and Regulations to develop a broader plan that assures that we are following health and safety guidelines and remediating all issues of concern within our available resources."

Listed below are some of the specific building violations uncovered in the inspections reports released Monday:

-- Water-damaged ceiling tiles, ceiling leaks, and evidence of rodents at Blackwell institute.

-- Peeling paint and a malfunctioning elevator, heating ventilator, and lighting fixture at Ronald Brown Academy.

-- Stained ceiling tiles, evidence of insects/rodents, broken glass in classrooms, and a malfunctioning elevator at Ben Carson High School for Science and Medicine.

-- Peeling paint, damaged ceilings, broken lights, leaking radiator, broken drinking fountain and evidence of insects/rodents at J.E. Clark Preparatory Academy.

-- Mold in two rooms, evidence of insects/rodents, missing ceiling tiles and floor coverings, a roof in need of repair, water-damaged ceilings, broken plumbing fixtures in boys' bathrooms, no heat in several classrooms and an auditorium, and a boiler in need of repair at Cody Schools.

-- A leaking roof over a gymnasium/lunchroom, a water-damaged ceiling, wall and floor, defective gym floor covering and no heat in a girls' locker room at Detroit International Academy.

-- Evidence of insects/rodents, no hot water in portable classrooms and a roof in need of repair at Dossin Elementary-Middle School.

-- Broken ceiling tiles and floor coverings at Greenfield Union Elementary-Middle School.

-- Roof and ceiling damage, a "trip hazard" on a stairwell and a missing handrail at A.L. Holmes Elementary-Middle School.

-- A leaking roof over the kitchen area of a cafeteria, broken floor tiles, a non-working elevator, defective handrails at two stairwells, barricaded doors and broken windows at Osborn High School.

-- Mold, evidence of insects/rodents, a water-damaged ceiling, wall and floor in gymnasium, broken glass at entrance and missing ceiling and floor ties at Spain Elementary-Middle School.