Following the deadly roof collapse, Pakistan ordered an inspection of schools
The families demanded justice for the 35 people killed. Relatives say they were warned that the roof was leaking.
Pakistani authorities have ordered inspections of schools in the region after a classroom roof collapsed, killing at least 34 children and a teacher.
Reports on Friday indicated that the government has ordered the administration of Khyber Pakhtunkhwa province in the country's northeast to begin inspections after Thursday's deadly incident at al-Khair school.
List of 3 items List 1 of 3 Imran Khan's PTI is gearing up to fight the federal takeover of Khyber Pakhtunkhwa
List 2 of 3 Violence in Pakistan due to Emergency in Imran Khan's Fort
List 3 of 3 School roof collapse in northwestern Pakistan kills at least 35
End of list At least 34 students aged 13 or younger, as well as a teacher, were killed in the roof collapse.
Schools must be classified as safe, in need of repair or improvement, or potentially unsafe. Various structures including roofs, ceilings, walls and staircases will be evaluated.
The police arrested Mohammad Khan, the owner of Al-Khair School shortly after the mud and brick roof collapsed.
The building was structurally weak, according to Peshawar police chief Saeed Ahmad, who also said Khan had told officers that recent rains had weakened the structure.
Bereaved families are demanding justice, and some of the victims' relatives say they warned Khan about frequent rainwater seeping into classrooms.
Dozens of mourners gathered outside the school on Friday to remember the victims.
Pakistan's construction standards are widely reported to be poor, with builders often using substandard materials.
The roof of a private educational center in the eastern city of Lahore collapsed in June, killing 14 people.