Retire It After Any Real Impact, Today
If something struck your helmet hard, or your head hit rock, the helmet is finished. Not at the end of the trip, not after you have had a look at it in better light. That day. This is the one rule on this page that does not wait for an inspection, because the inspection cannot tell you what you need to know.
Here is why. Helmets built around an expanded foam liner absorb an impact by crushing, permanently, and foam that has crushed does not spring back. The energy that did not reach your skull went into destroying material, which is exactly what was supposed to happen. What makes it dangerous is that the crushing happens under the shell, so a helmet that took a serious hit can look untouched from the outside while having spent most of what it had. The next rock finds a helmet with far less left in it than you think.
This covers rockfall, a fall where your head contacts the rock, and a hard knock in transit, the kind a helmet takes when a pack goes off a ledge or gets crushed under gear in a car boot. It does not cover a helmet sliding off a rucksack onto grass. When you cannot tell which of those you had, treat it as the first one: replacing a helmet costs less than the alternative, and no inspection you can do at home closes the gap.
Climbing Helmet Lifespan by How Often You Climb
An unused helmet retires after 10 years, and regular use brings that down to 3. Weekly and daily climbing land on the same figure, and that is deliberate rather than a slip. A helmet does not wear out from being worn the way a rope wears out from being climbed on: what ages it is sweat soaking into the foam and the straps, ultraviolet embrittling the shell, and heat, all of which a weekly climber accumulates almost as fast as a daily one. Three years is the conservative floor for anyone using a helmet regularly, and past that point the risk is a shell that no longer behaves the way it did when it was tested.
| Use | Retire after |
|---|
| Never used | 10 years |
| Rarely, a few times a year | 7 years |
| Monthly | 5 years |
| Weekly | 3 years |
| Daily | 3 years |
These are the figures the calculator above uses. Age runs from the date of manufacture, not the date you bought it, and the shorter of the two limits always wins.
Where these numbers come from
The ten year ceiling is the manufacturers' figure. Petzl gives plastic products a maximum of ten years from the date of manufacture, and a helmet shell and its straps fall under that. The shorter figures for regular use are ours. No standard and no manufacturer publishes a table of years by usage frequency, and EN 12492 and UIAA 106 are product test standards that say nothing about age, so we set a conservative ladder rather than leave the question blank. Read the result as a prompt to inspect the helmet, not as a deadline somebody else has certified.
Helmet Inspection Checklist
Run this before every session, and again after anything unusual. If a single check fails, the item is retired. There is no partial pass on load bearing gear.
After any impact, from rockfall or a fall
A helmet is designed to be destroyed once. Its job is to absorb an impact by deforming, and the material that deformed does not come back. If anything struck your helmet hard, or your head hit rock, the helmet has done its work and is finished, even when nothing shows on the outside. Foam liners in particular crush internally with no visible mark. This is the single most common reason a climbing helmet should be retired and the easiest one to talk yourself out of.
Cracks, dents and a soft shell
Look over the whole shell in good light, inside as well as out, and pay attention around the vents and the fixing points where stress concentrates. Any crack retires the helmet. So does a dent, a soft or spongy area, or a liner that has come away from the shell. Press gently around the shell: it should feel uniform.
Sun, heat and a chalky surface
Ultraviolet embrittles the shell over years and it is the reason a helmet has an age limit at all. A surface that has gone chalky, faded or dull compared with when it was new is telling you the material has aged. Heat does the same faster: a helmet left in a car boot through a summer has had a hard life. Neither leaves a mark that looks like damage, which is why the age limit exists.
Straps, buckles and the cradle
The shell is not the only part that fails. Check the webbing for fuzzing and cuts, the stitching for pulled threads, and the buckle for cracks or slipping. Work the adjustment cradle through its range: if it will not hold a setting, the helmet will move on your head at the moment you need it not to.
What EN 12492 and UIAA 106 Actually Test
Three things: whether the helmet absorbs an impact from above, whether something pointed can punch through it, and whether it is still on your head afterwards. EN 12492 is the European standard for mountaineering helmets and covers shock absorption, resistance to penetration, and the retention system, the straps and buckle that keep the helmet in place when you need it. UIAA Standard 106 sets requirements that go beyond the European baseline, which is why a helmet carrying the UIAA label has been through more than the minimum.
What neither standard tells you is how much of that performance is left in a helmet you have owned for six years. Both test new helmets, in a laboratory, once. That gap between a certified new helmet and the one on your head today is the entire reason this page exists, and it is why age limits and impact rules do the work that a certification mark cannot.
What Petzl Says About Helmet Lifespan
Ten years from the date of manufacture, and that is a ceiling rather than a target. Petzl lifetime FAQ gives plastic and textile products a maximum lifetime of ten years from manufacture, a helmet shell and its straps among them, and notes that metal products have no age limit of their own. It also lists what ends a product's life sooner: a serious fall or load, failing an inspection, any doubt about condition, an item whose full history you do not know, and equipment made obsolete by changes in standards or technique. On top of the check you do before each use, Petzl recommends a detailed inspection at least every twelve months.
The date of manufacture is normally moulded inside the shell, and it is that date the clock runs from, not the day you bought it. Where a standard or a manufacturer does not define a threshold, the judgement is yours, and the rule for load bearing gear is that doubt settles it: if you are unsure, retire it.
Do Climbing Helmets Expire?
Yes, and unusually for climbing gear, the clock runs even in the cupboard. The calculator sets 10 years from manufacture for an unused helmet and 3 years at weekly or daily use, because ultraviolet and heat embrittle the shell whether or not you climb in it. The manufacture date is normally moulded inside the shell. Any real impact overrides all of it: a struck helmet is retired that day. The helmet standards referenced across this site are EN 12492 and UIAA 106.
Retire It Today, No Inspection Needed
Some findings end the discussion. If any of these apply, take the item out of service now, mark it so nobody puts it back on a rack, and replace it.
- Any impact from rockfall or a fall, whether or not it left a mark.
- A crack, dent or soft area anywhere in the shell.
- A liner that has separated from the shell, or crushed foam.
- A cracked buckle, or a cradle that will not hold its setting.
- Long exposure to heat, such as a summer in a car.
The retirement figures here come from the calculator on this page, and the helmet standards referenced across this site are EN 12492 and UIAA 106. Where a standard or a manufacturer does not define a threshold, the judgement is yours, and the rule for load bearing gear is that doubt settles it: if you are unsure, retire it.
Check the rest of the chain too: rope, harness, carabiners and slings.. To judge whether a fall was hard enough to matter for the rest of your gear, use the fall factor calculator
Frequently asked questions
How long does a climbing helmet last?
Ten years from the date of manufacture for a helmet that has never been used, and three years with regular climbing. The calculator on this page works from 10 years unused, 7 for a few outings a year, 5 for monthly, and 3 for both weekly and daily use. Weekly and daily share a figure on purpose: what ages a helmet is sweat, ultraviolet and heat rather than the number of days you wear it. Petzl gives plastic and textile products a maximum lifetime of ten years from manufacture, and the date is normally moulded inside the shell.
Can I put stickers on my helmet?
Only where the manufacturer says you can, or using its own stickers. Petzl warns that the chemistry in adhesives, paints and marker inks can react with the shell material, and the damage that causes is not something you can see or test at home. If your helmet came with guidance on where decoration is allowed, follow it. If it did not, the safe answer is to leave the shell alone and put your name on the strap instead.
When should I retire my climbing helmet?
Retire your climbing helmet immediately after any direct impact (rockfall, ground fall), if there is any visible damage (cracks, dents, damaged retention system), or when it exceeds the retirement age this checker applies: 3 years for daily or weekly use, 5 years for monthly use, 7 years for occasional use, 10 years maximum regardless of use.
Why must I retire a helmet after one impact?
Most climbing helmets use EPS (Expanded Polystyrene) foam that works by crushing to absorb impact energy. This crushing is permanent. The foam cannot return to its original shape or absorb energy in a second impact. A helmet that has taken a significant impact may look intact from the outside while the foam core is fully compromised and offers no protection.
I dropped my helmet from my pack. Do I retire it?
Usually not, but inspect it before you decide. An empty helmet falling off a rucksack is not the working impact the helmet is built to absorb: there is no head inside it and very little energy in the fall. Go through the shell, the foam and the retention system as described in the inspection checklist above, in good light, inside and out. We are not going to give you a height threshold, because the surface it landed on, the angle and what it hit matter as much as the drop, and no manufacturer publishes a number we could pass on. If anything at all leaves you unsure after that inspection, retire it. A helmet is the cheapest thing on this page to replace.
What visible damage requires immediate helmet retirement?
Retire immediately if: there are any cracks in the outer shell, visible dents or deformation, delamination of the shell from the foam, any visible compression or cracking of the inner EPS foam, broken or non-functioning retention system buckle, or severely frayed chin strap webbing.
Do climbing helmets have an expiry date?
Yes. Petzl caps plastic and textile products at ten years from the date of manufacture regardless of use, and a helmet shell is a plastic product. UV radiation degrades both the outer ABS or polycarbonate shell and the EPS foam liner, reducing their protective ability even without visible damage. Check the manufacture date on the label inside the helmet.
What is the difference between UIAA 106 and EN 12492?
Both standards test top impact absorption and penetration resistance. UIAA Standard 106 additionally requires side impact testing, important for rockfall from the side, which EN 12492 alone does not mandate. Helmets with the UIAA Safety Label have passed both top and side impact tests, providing more comprehensive protection.