Fire Stopping RAMS Guide for UK Contractors

Key Topics in a Fire Stopping RAMS

Penetration assessment

Before fire stopping is applied, each penetration must be assessed: substrate (concrete, blockwork, drywall, timber floor), penetrating item type and material (plastic pipe, steel pipe, multi-cable, cable tray, duct), and annular gap size. The approved system must match this combination. The RAMS must describe the assessment process for each penetration type on the project.

Approved systems only

Fire stopping systems must be used in accordance with their third-party tested and approved system specification. Systems tested by UKAS-accredited laboratories with BS EN 1366 or equivalent. The RAMS must reference the specific system and its tested limits (penetration size, substrate, fire rating).

Annular gap compliance

The annular gap between the penetrating item and the penetration opening must be within the tested system limits. Oversize gaps must be reduced before fire stopping is applied. The RAMS must specify the maximum annular gap for each system used and the remediation method for oversize gaps.

Inspection records and labelling

Every completed penetration seal must be photographed and recorded (location, penetration type, product and system used, applicator, date). Labels or markers should be affixed to completed seals where practicable. The RAMS must describe the record system used and who retains the records.

Substrate condition

The substrate must be dry, free from contamination, and structurally sound. Fire stopping applied to a damp or deteriorated substrate may not achieve the tested performance. The RAMS must require substrate inspection before application.