In Passive Fire Protection, Technical Assessments are required to demonstrate how a project-specific installation will perform in a fire when there is no directly applicable test or certification evidence available for a configuration, and provide a structured, evidence‑based extension of existing test data to cover variations in services, substrates, configurations, or site constraints that would be impractical or impossible to test individually. Technical Assessments can only be authored by suitably qualified and experienced professionals and must follow strict guidance on how they can be authored. HIVE has a unique blend of experience and expertise across its network with decades of combined experience in the industry, providing a unique and bespoke approach to historic construction issues.