Warehouse Rooflight Leaking Onto Stock: Immediate Actions
If a warehouse rooflight is leaking onto stock, move or cover the stock beneath it, place containment to catch the water, and keep people and forklifts clear of the wet area and any racking lighting or power in it until it is confirmed safe. Photograph everything for your insurer before you clear up. Then arrange an urgent survey, because a rooflight leaking this badly has usually failed and needs replacing, not sealing.
This answer sits under our commercial skylight installation service. It is written for the moment it is happening, and for the decision that follows. If the leak involves electricity, treat it as an electrical emergency first.
Immediate steps
- Protect the stock. Move what you can out from under the leak. What cannot be moved, cover with sheeting so the water runs off it rather than into it. Get pallets off a wet floor.
- Contain the water. Place bunding, drip trays or bins under the active drips, and manage the run-off so it does not spread across the floor and create a slip hazard or reach more stock.
- Keep clear of electrics. Racking lighting, power to conveyors, and floor sockets in the wet area are a hazard. Do not touch wet electrical fittings. If water is near or in any electrical equipment, isolate that circuit if it is safe to do so and keep people away until it is confirmed safe. Treat water plus electricity as an emergency.
- Cordon the area. A wet floor under a leak is a slip risk and the drips may bring down debris. Keep people and forklift traffic out of the immediate area.
- Record it. Photograph the leak, the water, the damaged stock and the source above if you can see it safely, before you clear up. This is your evidence for the insurer.
Do not go up to look at it, and do not walk the roof. A rooflight leaking this badly is a failed, degraded rooflight, and a degraded rooflight is fragile: it will not hold a person. The temptation to get on the roof and see the source is exactly how a leak becomes a fall through the roof. Non-fragility degrades with age, and a leaking rooflight has aged. Leave the roof to a surveyor working off staging that spans the rooflights. Never test a suspect rooflight by standing on or near it.
Evidence for insurers
A rooflight leak that damages stock is usually an insurance matter, and the claim is easier if the evidence is captured at the time.
- Photograph the active leak, the water path and the damaged stock before clearing up.
- Note the date, time and the weather, because driven rain leaks tell a different story from steady ones.
- Keep a record of the stock affected and its value.
- Keep any survey and quotation for the repair, which shows you acted to stop recurrence.
Insurers respond better to a documented, promptly managed incident with a plan to prevent the next one than to a leak that has been patched repeatedly and keeps returning. A replacement scope demonstrates you have addressed the cause, not just the symptom.
Why it usually needs replacing, not sealing
A rooflight leaking hard enough to reach stock has usually failed at the laminate or the laps, and both mean the sheet is at the end of its life. Sealant on a failed rooflight buys a season at most and hides the fragility problem behind a maintained-looking surface. The water is coming through a degraded laminate or a lap that no longer closes, and neither is fixed by mastic. A leaking rooflight is often the leading edge of a slope reaching the end of its service life, so the survey looks at the whole slope, not just the one sheet. Our warehouse rooflight leak replacement page covers the diagnosis, and replace rather than patch covers why sealing does not hold.
Arranging an urgent survey
Once the immediate situation is contained, an urgent survey establishes the source and the scope. We arrange access with your team, trace the leak to its real entry point, which is often several metres up-slope of the internal drip, grade the surrounding rooflights, and come back with a replacement scope. Where the leak is over critical stock or electrical equipment, that position is prioritised in the programme. On an occupied warehouse the work is phased bay by bay and closed weather-tight each day, as covered on our occupied building page.
Should I get someone on the roof to stop the leak now?
No. A rooflight leaking this badly is a failed, degraded and therefore fragile rooflight that will not hold a person, and going up to it risks a fall through the roof. Contain the leak from below, protect the stock, and leave the roof to a surveyor working off staging that spans the rooflights. Never walk on or near a suspect rooflight.
Can the leaking rooflight just be sealed?
Sealant on a rooflight leaking hard enough to reach stock buys a season at most, because the water is coming through a degraded laminate or a lap that no longer closes, neither of which mastic fixes. It also hides the fragility problem. A leak this bad usually means the sheet, and often the slope, has reached the end of its life and needs replacing.
Get an urgent survey arranged
Once the stock is protected and the area is safe, contact us for an urgent survey. We trace the source, grade the slope, and come back with a replacement scope that stops the leak rather than postpones it.
Request an urgent survey. Read across to what to do about a fall-through risk, warehouse rooflight leak replacement, and why replace rather than patch.
Thinking about this job? We survey across Ipswich, Suffolk and north Essex and give you a fixed price before any work starts, with a 10-year workmanship guarantee.