The federal coalition is demanding the government inspect all 1.1 million Australian homes which had roof insulation installed under Labor's botched $2.45 billion stimulus program.
Opposition climate action spokesman Greg Hunt says it has "no choice" but to bite the bullet and foot the bill for fixing the mess.
"We know that there are 240,000 dangerous or dodgy roofs out there," Mr Hunt told ABC Radio.
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"(But) we don't know which of the million roofs are these dangerous and dodgy roofs.
"The government has no excuse and no choice to do other than inspect all of those roofs."
Mr Hunt said some insurance companies are now demanding home-owners have a safety inspection.
"There are new pressures on householders and the government has a duty to give householders peace of mind and to make sure that each house is safe."
About 1.1 million homes have been insulated to date at a cost of approximately $1.5 billion.
The government has announced foil insulation is to be removed, or an extra safety switch installed, in 50,000 homes.
It will also pay for inspections of a minimum 150,000 homes fitted with roof batts.
The opposition on Monday also warned it will continue demanding Prime Minister Kevin Rudd reveal all the safety warnings he'd received from the minister formerly in charge of the program, Peter Garrett.
"We want him to release that correspondence today in the parliament," Mr Hunt said.
On Sunday, Treasurer Wayne Swan said the money needed to fix the axed program will come from "the existing funding envelope" which also has to cover a new scheme operating from June.
"Certainly it would mean that less houses would be insulated in the long term," the treasurer said.
