Portland school officials will hold a public forum tonight for parents of children who attend Hall Elementary School, which has been closed for a week due to fire damage. 

The forum will begin at 6:30 p.m. and take place at the Guild Hall, 307 Congress St.

Hall School students, who have been off since the fire, will resume school on Tuesday, but they will be attending the Cathedral School, which closed in the spring.

Parents tonight will be given the opportunity to go tour the Cathedral School building, which is located on Locust Street between Congress Street and Cumberland Avenue. Teachers toured the building last week.

It’s unclear how long Hall students will attend the Cathedral School.

School officials are waiting on the results of tests to make sure the environment inside is safe for students and staff. The electrical fire set off sprinklers that caused a lot of water damage.

Results of lab tests are expected on Tuesday.

Cathedral has 14 classrooms, compared to 28 at Hall school, but the rooms are bigger and most will accommodate two classes at the same time, school officials said.

Once Hall School re-opens, teachers will have to adapt to the loss of two classrooms. Those rooms, along with a resource room used primarily by teachers, will have to be gutted due to the extent of the damage.