Key Highlights
Learn how impact, UV exposure, storage and wear affect helmet replacement timing and worker safety.
A helmet shell may still look intact while its real protective performance has already declined due to sunlight, heat, impacts or chemical exposure. Replacement decisions should never rely on visible cracking alone. ## 1. Start with the manufacturer guidance Service life varies by brand and material. Procurement and EHS teams should track product-specific life limits and include warehouse storage time in that calculation. ## 2. UV and temperature exposure matter In construction, energy, logistics and outdoor maintenance, helmets face continuous UV and heat. Fading, brittleness or hardening are practical warning signs. ## 3. Inspect the suspension system separately The shell is only one part of the system. If the harness or adjustment mechanism is loose or damaged, the helmet should not stay in service just because the shell looks acceptable. ## 4. Do not ignore impact history If a helmet has already taken a significant hit, replacement should be considered even when no crack is visible. ## 5. Chemical exposure and painting increase risk Some solvents, cleaners and site modifications can damage helmet materials. Maintenance policy should address those practices directly. ## Practical checklist - Are manufacturing and issue dates tracked? - Are there signs of hardening, colour change or cracking? - Is the harness complete and adjustable? - Is there any known impact or chemical exposure history? - Do supervisors know the replacement rule?
