Applicable Regulations
Method Statement — Sequence of Work
- Review this RAMS and confirm site conditions match those described before work begins.
- Brief all operatives on the hazards, controls and PPE requirements below (toolbox talk).
- Check and don all required PPE, and inspect tools and equipment before use.
- Carry out the task in line with the control measures set out in the Hazard & Risk Assessment section below.
- Maintain good housekeeping throughout — keep the work area tidy and manage waste and materials safely.
- On completion, remove tools and equipment, restore the work area, and report any incidents, near misses or changes in site conditions to the site supervisor.
- Complete the sign-off section at the end of this document before leaving site.
Hazard & Risk Assessment
Each hazard is assessed against a standard Likelihood × Severity matrix. “Initial Risk” reflects the risk before any control measures are applied; “Residual Risk” reflects the risk once the stated controls are correctly implemented on site.
Radon Gas Exposure During Sub-Floor Works
Control: Ventilate the work area throughout sump installation and testing, minimising time spent in unventilated sub-floor voids and following the radon action plan for the property.
Working in Confined Sub-Floor & Crawl Spaces
Control: Assess access and ventilation before entering sub-floor voids, keeping a second person aware of the work location throughout.
Power Tool Use When Breaking Through Floor Slabs
Control: Use dust extraction on cutting equipment when forming the sump pit, and wear an FFP3 mask throughout.
Fan Unit Electrical Installation
Control: Install and wire the radon sump fan to a fused spur or dedicated circuit in line with BS 7671, positioning it for accessible future maintenance.
Post-Installation Radon Testing
Control: Confirm system effectiveness with a follow-up radon test after installation, in line with UK Health Security Agency guidance.
Required PPE
Emergency Procedures
Fire
Stop work immediately, raise the alarm and evacuate to the designated assembly point. Do not attempt to fight a fire beyond your training. Call 999 once safely evacuated if the fire brigade has not already been alerted.
First Aid / Injury
Stop work and alert the nearest first aider or site supervisor. For a serious injury, call 999 immediately and do not move a casualty unless there is immediate danger.
Spillage / Environmental Incident
Stop work, contain the spill using the site's spill kit if safe to do so, and report it to the site supervisor immediately. Do not allow any spillage to enter a drain or watercourse.
Frequently Asked Questions
Does this RAMS cover radon gas exposure risks specific to sub-floor work?
Yes. It includes a control requiring the work area to be ventilated throughout sump installation, minimising time spent in unventilated sub-floor voids.
Do I need to keep a copy of this RAMS on site?
Yes. HSE guidance expects a copy of the RAMS — along with the completed sign-off section — to be available on site for the duration of the work, and reviewed if site conditions change.