Yes, Regulation 7 and Approved Document 7 states in Section 1:
1.1 Building work must meet the functional requirements of Schedule 1 to the Building Regulations. Approved documents refer to materials covered by harmonised European product standards, British Standards and other technical specifications. However, there is no obligation to adopt any particular solution contained in an approved document in order to meet functional requirements; the references are not exclusive and other materials may be suitable in the particular circumstances.
1.7 If the declared performance of a product is suitable for its intended use, the building control body should not prohibit or impede the use of the product.
Independent third-party performance testing to the applicable parts of the nearest standard, past experience and independent fire engineering assessments represent three routes that allow the person carrying out building works to demonstrate that the requirements of the regulations have been complied with and an innovative product is appropriate.
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