The Greens and Canberra Liberals are demanding the ACT government reveal the location of buildings found to have potentially flammable cladding.
The ACT government has identified about 70 territory owned buildings which might contain combustible cladding, during an audit triggered by the deadly Grenfell Tower fire.
But the government is refusing to publish details about the buildings, although it insists that none pose an "immediate risk" and are all safe to occupy.
Minister for Building Quality Gordon Ramsay said on Monday that he wanted to make sure that information published about cladding was "accurate and not alarmist".
But opposition planning spokesman Mark Parton said Canberrans had the right to know which buildings posed a potential fire risk.
"Honestly, we've got the government saying 'we know where all the combustible cladding is, we know where all the buildings are that can potentially be at risk - but trust us, we're not going to tell you' ... that's rubbish, it's rubbish," Mr Parton said.
"They have the information and they should share it."
Property groups and the ACT Greens have been pressuring the government to expand its audit to cover privately owned buildings, particularly high-rise apartments.
The government continues to resist those calls, choosing instead to rely on insurance companies to keep it informed about the presence of the material on Canberra's buildings. The Insurance Council of Australia has cast doubt on that approach, given insurers typically don't inform government regulators about building defects.
Mr Parton said the opposition was yet to finalise a formal position on a private cladding audit, although his "gut feel" was that the Liberals would support it.
He said there had been "robust discussion" among his colleagues about the issue, but refused to elaborate.
Greens crossbencher Caroline Le Couteur, who obtained the figures on the government's cladding audit, said it was "a real disappointment" that details about the buildings were being kept secret.
"We should know," Ms Le Couteur said.
Ms Le Couteur again called on the government to urgently inspect private buildings for potentially flammable cladding.
"I know quite a few people who know that their buildings have flammable cladding, [but] they don't know how they are going to fix it, what it is going to cost and whether or not they should be worried every time they go to bed," she said.
"There is a lot of concern about."
Mr Ramsay did not respond directly to questions about why the government was not publishing details about the 70 or so buildings identified in the audit.
Instead, he stressed that not all types of cladding were dangerous.
He said it was wrong to infer that buildings identified in the audit were completely covered in the material.
"Not all cladding is dangerous," Mr Ramsay said.
"It is really important for Canberrans to be aware of this. It might be as simple as a sign on a building that has cladding on it."
Mr Ramsay said he would make a "full public statement" about the government's cladding audit by the end of the year.
