Shed Inspection - What to Check Before November
October arrives in North Queensland with a particular kind of energy. The humidity starts climbing, the afternoons turn electric, and anyone who's lived up here long enough knows exactly what that means. The wet season is loading up. And somewhere between 1 November and 30 April, there's a reasonable chance a tropical low — or something considerably worse — will be tracking across the Coral Sea with your postcode in its general direction.
Most people spend this time of year checking their house. Emergency kit restocked, gutters cleaned, storm shutters tested. All good. But here's what a surprising number of Townsville and North Queensland property owners forget to add to that list: the shed.
Your shed is out there every single day, absorbing UV, humidity, salt air, and thermal expansion cycles that would make a southern-state builder wince. By the time November rolls around, it's already been through a full dry season. And if you haven't looked at it — really looked at it — since last year's wet, there could be things happening to that structure that you genuinely need to know about before the next system develops.
This isn't about scaremongering. It's about being the kind of property owner who doesn't have to watch their shed become a debris field on the evening news.
Start With the Roof — Always the Roof
If you only check one thing on your shed before cyclone season, make it the roof. Roof loss is statistically the most common and most costly failure mode during severe tropical weather events, and the Cyclone Testing Station at James Cook University has documented this pattern across decades of post-storm damage surveys. The roof goes first. Everything else follows.
What you're looking for isn't always dramatic. Sometimes it's a single loose sheet at the edge, a screw that's backed out slightly, or a batten strap that's developed surface rust. These small things compound under cyclonic wind loads in ways that are genuinely hard to predict until they're not your problem to predict anymore — they're your insurer's.
Get up there safely, or engage someone to do it. Look for:
- Roof sheets that have lifted, warped, or show signs of movement around the fastening points
- Rust: not just surface discolouration but any pitting, flaking, or visible degradation around screws, bolts, and connector plates
- Batten-to-truss connections that look loose, corroded, or improperly secured
- Any gaps where the roof meets the wall that weren't there before
Here's something worth understanding about how cyclone forces actually work on a roof. It's not just the wind pushing down — it's the suction pulling up. Uplift forces during a severe tropical cyclone can be enormous, and they're greatest at the corners and edges of the roof where turbulence is highest. A fastener that's 80% corroded might hold fine on a calm day. Under uplift loading? Different story entirely.
The Doors Are More Important Than You Think
Shed roller doors don't get nearly enough attention in these conversations, and they really should. When a shed door fails during a cyclone — pushed in by positive pressure or blown out by suction — wind enters the structure. Internal pressure spikes. And suddenly the roof is dealing with forces it was never designed to handle from that direction.
It's a cascading failure, and it happens faster than you'd imagine.
Before November, check your roller doors and any personnel doors on the shed. Are they rated for wind pressure? If you're not sure, that's worth finding out — your builder or a licensed building practitioner can advise. Check the tracks for rust or deformation. Check that the locking mechanisms are solid and actually engage properly. Look at the seals around the perimeter.
If your shed doors are older and you have doubts about their rating, it's worth having a conversation with a qualified professional before the season starts rather than during it.
Rust: The Enemy That Never Sleeps
North Queensland's combination of coastal salt air, high humidity, and wet season rainfall creates almost perfect conditions for ferrous corrosion. If your shed has steel fasteners, connector plates, batten straps, or structural members that aren't adequately protected, rust isn't a question of if — it's a question of when and how bad.
Walk the interior of your shed and look upward. Check the roof space if you can access it safely. What you're looking for is rust on the structural connectors — the components that actually hold the building together under load. Surface rust on cladding is one thing. Rust on the tie-down bolts, the batten straps, the column base connections? That's a different category of concern.
Pay particular attention to any areas where water has been pooling or where condensation runs. Moisture concentration accelerates corrosion dramatically, and these spots can develop serious degradation while the rest of the shed looks perfectly fine.
If you find significant rust on structural connectors, don't try to paint over it and hope for the best. Get a professional assessment. In some cases it's a straightforward fix; in others, components need replacement. Either way, you want that information before a Category 3 is sitting 200 kilometres offshore.
The Stuff Around the Shed Matters Too
This part often gets overlooked completely. What's near your shed can be just as dangerous as anything wrong with the shed itself during severe weather.
Think about what surrounds your structure. Trees that have grown significantly since the shed was built — particularly anything with a canopy that extends over the roof — represent a real falling debris risk. Equipment stored alongside the shed, unsecured gas bottles, old machinery, even children's play equipment within range: all of these become projectiles when wind speeds hit cyclonic levels.
Walk a perimeter around your shed and think about everything in that zone through the lens of 200 km/h winds. Anything that could move, should be secured or relocated before the season starts. It sounds like common sense, but it's the kind of thing that's easy to overlook when you're busy and the sky is still blue.
Also check your shed's attachment points to the ground. Footings should be solid, and if your shed sits on a concrete slab, check the perimeter for cracking or movement. Column base connections should be tight, free from rust, and showing no signs of movement or uplift.
What a Pre-Season Inspection Actually Looks Like
Ideally, a proper pre-cyclone inspection of your shed involves a qualified eye — a licensed builder or structural professional who knows what they're looking at and can give you a documented assessment. This is especially worth doing if your shed is more than ten years old, if it's in an exposed location, or if it predates the current cyclone-rated building standards.
That said, a thorough owner inspection using the guidance above will catch the obvious issues and give you a clear picture of what needs professional attention. The goal isn't perfection — it's informed awareness. Knowing what condition your shed is actually in before the season starts puts you in a position to act, rather than react.
Nobody in North Queensland wants to be in their driveway after a cyclone, looking at where their shed used to be, thinking about what they could have checked in October.
One Last Thing Before You Head Outside
The best time to do this inspection is right now — before the wet builds momentum and before everyone else in Townsville remembers they need a licensed builder at the same time you do.
Book that inspection. Walk the shed. Check the roof, the doors, the fasteners, and the surroundings. If something doesn't look right, get a professional opinion. The cost of a pre-season assessment is genuinely insignificant compared to the cost of cyclone damage — or worse, a structural failure that puts people at risk.
North Queensland rewards the prepared. It always has.
Perennial Sheds builds and inspects cyclone-rated steel sheds across Townsville and North Queensland. If you'd like a professional eye on your shed before the wet season, get in touch with our team today.


