An internal fire barrier is a vital building component that restricts the spread of fire within a structure, crucial for preventing rapid fire progression, protecting occupants and minimising property damage.

In the UK, regulatory requirements for internal fire barriers are specified within Building Regulations. Compliance depends on the building's type, use and size.

Key considerations include the use of fire-resistant materials (e.g., gypsum-based plasterboard). Usage of expertly designed fire barriers, such as fire batts, create a secure zone, preventing the spread of flames and smoke.

Further considerations include maintaining structural integrity and insulation, proper installation meeting standards, and potential certification of materials. Building owners must adhere to Building Regulations, consulting the latest editions and seeking guidance from authorities and fire safety professionals for up-to-date information on internal fire barriers.