Fire fighters want every public and residential building constructed in the last decade to be inspected.
It comes after checks revealed three Dublin schools could burn down in less than an hour.
The schools named in the audit are Powerstown Educate Together, Dublin 15; Gaelscoil Clocha Liatha, Greystones Co Wicklow; Mullingar Educate Together in Co Westmeath; Belmayne Educate Together, north Dublin; and St Francis of Assissi, National School, in Belmayne, north Dublin.
The Department of Education is said to be investigating a sample review of 25 schools around the country that were built under the 2008 rapid build programme.
A spokesperson for Western Building Systems, the behind construction of the schools, said:
“We believe the buildings mentioned in the reports met all relevant fire safety and building regulations at that time on the basis that all of the required building and fire certifications of compliance and completion were issued by the architect and by the client without any note of the defects included in the recently published fire safety reports.
"It is important to note that both building and fire regulations have been updated since the buildings were handed over and that schools are responsible for maintenance programmes once a project has been delivered by the contractor.
“We do not believe Western Building Systems Ltd is responsible for issues that have presented themselves since the hand-overs. However, we have been working closely with the Department and other relevant authorities to assist with maintenance and upgrade works stemming from issues that have come to light since the handovers".
SIPTU's John King says they have huge concerns over buildings that went up during the boom-time self-certification years.
"I think what we have witnessed over the last couple of years in private sector apartments, other properties and now more recently in the building of schools is that that self-certification process has not delivered appropriate fire safety standards to ensure the protection of kids in this situation".
Findings are expected in December.