Question to the Home Office:

To ask Her Majesty's Government what percentage of fires since 2012 in buildings over (1) 18 metres or six storeys high, and (2) 11 metres or four storeys high, have had (a) non-combustible insulation, (b) combustible cavity insulation, and (c) no cavity insulation.

The Home Office does not collect this information. Data on fires in high-rise and medium-rise purpose-built flats are available in Table 0205 here: https://www.gov.uk/government/statistical-data-sets/fire-statistics-data-tables#dwelling-fires-attended but we do not collect information on cavity insulation in the property in which the fire took place.