Needing a special safety sign? Why not create your own?
Hearing damage is permanent, yet it remains one of the most common occupational health issues in the UK. As a site manager, safety officer, or business owner, you have both a legal duty and a moral responsibility to protect your workers from noise hazards, and proper signage plays a crucial role in that protection.
But when exactly do you need to display noise hazard signs on your worksite? In this guide, we’ll walk you through the UK regulations, explain when signage is mandatory, and show you how to choose and position signs that keep your workforce safe and compliant.
The Control of Noise at Work Regulations 2005 establish three key action levels based on daily or weekly noise exposure:
Lower Exposure Action Value: 80 decibels (dB)
Employers must provide information and training about noise risks and make hearing protection available. Signage isn’t mandatory but is considered good practice.
Upper Exposure Action Value: 85 dB
Employers must reduce exposure, provide hearing protection, designate hearing protection zones, and display noise hazard signs. This is where signage becomes a legal requirement.
Exposure Limit Value: 87 dB
The maximum permitted noise exposure level, taking hearing protection into account. Mandatory signage is essential, and immediate control measures must be implemented.
These measurements refer to daily or weekly average exposure, not momentary peaks. Peak sound levels above 135 dB also trigger the regulations regardless of duration.
Noise hazard signs are legally required when workplace noise reaches or exceeds 85 dB as a daily or weekly average. At this threshold, you must:
Signs must be displayed at all entry points to hearing protection zones and anywhere workers might enter an area where noise exceeds 85 dB.
Construction Sites: Pneumatic drilling, concrete breaking, pile driving, and heavy plant operation regularly exceed 85 dB. Most active construction sites require hearing protection zones with appropriate signage.
Manufacturing Facilities: Metal cutting, pressing, grinding, or assembly operations often generate sustained high noise levels requiring permanent hearing protection zones.
Woodworking and Sawmills: Power saws, planers, and routing equipment produce intense noise levels that can exceed thresholds even in smaller workshops.
Roadworks and Highways: Road surfacing equipment, jackhammers, and heavy vehicles create substantial noise exposure requiring temporary signage in mobile work environments.
Recycling and Waste Management: Crushing, sorting, and processing equipment generates sustained high noise throughout operational areas.
For comprehensive site safety, explore our full range of site safety signage.
Identify all noise sources during normal operations. If workers need to shout to be heard at about two metres distance, noise levels likely approach or exceed 85 dB.
Options include hiring a qualified occupational hygienist, using calibrated dosimeters, or consulting HSE guidance and industry benchmarks for common tasks.
Noise exposure uses a logarithmic scale where every 3 dB increase represents doubled noise energy. For complex patterns, use the HSE’s noise exposure calculator to determine accurate daily averages.
Any area where noise exceeds 85 dB becomes a hearing protection zone. Mark boundaries clearly with signage at all entry points.
Create a written noise risk assessment documenting measurements, calculations, identified zones, and control measures. Review regularly, particularly when work practices or equipment change.
Safety signs must comply with the Health and Safety (Safety Signs and Signals) Regulations 1996, aligned with ISO 7010 standards. Noise hazard signs feature:
Rigid plastic: Suitable for indoor and sheltered outdoor areas. Lightweight and cost effective.
Aluminium composite: Ideal for outdoor sites and exposed locations. More durable but heavier.
Self adhesive vinyl: Good for smooth surfaces where drilling isn’t practical.
Photoluminescent materials: Provide visibility in poor lighting without external power.
All materials should be UV resistant and weatherproof where necessary. Our construction site signs include options for demanding environments.
Strategic placement ensures visibility and understanding:
Regular Inspections: Check signs monthly for damage, fading, or obstruction. Replace damaged signs immediately.
Cleaning: Clean signs quarterly using mild detergent and water. Avoid abrasive cleaners.
Review After Changes: Reassess signage whenever you modify work processes, introduce new equipment, or change layouts.
Keep Records: Document installations, inspections, and replacements as part of health and safety records.
Our returns policy ensures straightforward replacement of any damaged or incorrect signs.
While signs are mandatory at 85 dB, comprehensive protection involves:
Engineering Controls: Reduce noise at source through equipment modification, maintenance, or sound dampening materials.
Administrative Controls: Limit exposure through job rotation or scheduling noisy tasks during periods with fewer workers.
Personal Protective Equipment: Supply appropriate hearing protection and train workers in proper use.
Training and Awareness: Educate workers about noise risks and the importance of consistent protection use.
Health Surveillance: Provide regular hearing tests for workers exposed to high noise levels.
Consider these factors when selecting signs:
Compliance: Ensure signs meet UK regulations and ISO 7010 standards with appropriate documentation.
Quantity Planning: Calculate needs based on entry points, zone boundaries, and visibility requirements.
Size Selection: Larger signs (300mm to 400mm diameter) for distant viewing; smaller signs (150mm to 200mm) for close range mounting.
Material Matching: Choose materials appropriate for your environment. Outdoor sites need weather resistant aluminium; indoor areas can use lighter plastic.
At Lasting Impressions Online, we specialise in noise hazard signs that meet all UK regulatory requirements, manufactured from durable materials designed for demanding site conditions.
Do I need signs if noise levels fluctuate throughout the day?
Yes, if the average daily exposure reaches or exceeds 85 dB, signs are required even if noise levels are lower during parts of the shift.
Can I use temporary signs for short term projects?
Temporary signs are acceptable provided they meet the same visibility and clarity standards as permanent signs.
How often should I review my noise assessment?
Review assessments at least every two years, or sooner if you introduce new equipment or change work processes.
Noise hazard signs are a legal requirement once workplace noise reaches 85 dB, but they’re also a visible commitment to worker wellbeing. Proper signage, combined with robust risk assessment and effective control measures, protects employees from permanent hearing damage while keeping your organisation compliant.
If you’re unsure whether your site requires noise hazard signs, conduct a proper assessment or seek professional advice. The cost of comprehensive noise control is minimal compared to the personal and financial costs of occupational hearing loss.
At Lasting Impressions Online, we help organisations navigate safety signage requirements and implement effective solutions. Learn more about us and how we support UK organisations in creating safer workplaces.
For questions about specific requirements or to discuss your needs, get in touch with our team.
