A culture change is needed to ensure safety is prioritised over costs in the construction industry, according to a probe ordered after the Grenfell Tower fire.
Dame Judith Hackitt said building regulations are confusing and the profession suffers from "competence" issues.
The former health and safety chief has been assessing the adequacy of current guidelines in the wake of the disaster, which raised fears that unclear industry standards had allowed dangerous material to be installed on towers.
Interim findings of the report were released today.
It is suspected that pressure to drive down the price of refurbishing Grenfell Tower led to cheaper, flammable material being installed on its exterior.
Seventy-one people died when a fire tore through the west London block on June 14, while a subsequent safety operation identified hundreds more buildings with similar cladding systems.