Mainly responsible for fire register, collecting building baseline data to the builder.

1. Structural fire protection: Protects key structural components. It is typically achieved by fireproofing with a substance that is flame retardant.

2. Compartmentalisation: Barriers that prevent the spread of flames. These partitions can include everything from fire-rated walls through to dedicated smoke and flame barriers.

3. Opening protection: Apertures such as doors, windows, or air ducts that can compromise a fire barrier need to be strong enough to withstand flames.

4. Firestopping: Perhaps the greatest risk in terms of a fire spreading is small flaws or penetrations in a fire barrier.