# The Higher-Risk Buildings (Key Building Information etc.) (England) Regulations 2023, Regulation 9: Key building information: materials


If there is insulation of the external wall—
(a) a description of the material used in the composition of that insulation, and
(b) if there is more than one material, what percentage of the whole does each material constitute.

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Source: https://www.legislation.gov.uk/ukdsi/2023/9780348243963/regulation/9 (the official version)
Page: https://openlegislation.uk/draft-higher-risk-buildings-key-building-information-etc-england-regulations-2023/regulation-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.