Question to the Department for Levelling Up, Housing & Communities:

To ask the Secretary of State for Housing, Communities and Local Government, what estimate he has made of the number of buildings affected by the retraction of three tests carried out on Kingspan K15 insulation; and what assessment he has made of the effect of that retraction on the fire safety implications for leaseholders, tenants and residents.

We do not have any estimate of the number of buildings which will be affected by the retracted tests.

On 10 March 2021 we issued a letter to fire safety professionals and building control bodies reminding them that Kingspan has retracted three test reports. The letter is available here : https://www.gov.uk/government/publications/letter-to-building-control-bodies-on-the-retraction-of-three-tests-carried-out-on-kingspan-k15-insulation

The letter recommends that fire safety professionals and buildings control bodies review their records to check that any assessments they have carried out using these tests are identified and revisited in light of the information highlighted during the Grenfell Tower Inquiry. The content of this letter is not new and is simply a reminder of the steps they should take in light of this information.