Your caravan roof takes the full summer sun every day. Here's why it cracks, and how to keep the sun off it.
The roof is the part of a caravan you see the least and the sun sees the most. It sits flat under the sky all day, every day, and the places that keep it watertight are the first to give out. Here's where that happens, why another round of sealant only buys time, and a straight answer to the questions owners ask us before they cover it.
By Anders from the warehouse.
Last updated 5 November 2026.
Summary: A roof stays watertight because of sealant at the seams, along the joint where the roof meets the walls, and around every vent, the antenna and the air conditioner. Sealant dries out, shrinks and cracks with time, and the roof is the part that sits in the sun all day. A cover that sits over just the roof keeps the sun off those seams, and the questions owners raise about covers are answered further down.
The cover itself: white 210D Oxford fabric, waterproof and sun-resistant, made for strong sun. Nine lengths from 5.5 to 13.5 m, all 3 m wide. The edge hangs 30 to 40 cm down the sides, one person puts it on, shipping to Australia is free and takes 5 to 10 business days, and you get 90 days to send it back or get a refund.
1. The sun works on your roof all day, at the places you never look.
Fibreglass, aluminium or a membrane, the weak spots are the same. There are the seams at the front and back and the long joint where the roof meets the wall. Then there's every hole cut through the roof: the vents, the antenna, the air conditioner. Each of those places is kept watertight by sealant, and sealant doesn't last forever. Year after year in the sun it dries out, shrinks and cracks, and pulls away from the edge it was meant to seal.
2. You won't check it. The sun will.
Nobody climbs up on a hot roof to look at a seam. That's normal, and it's exactly why the damage goes unnoticed. A crack in the sealant doesn't leak on the day it opens. It waits for the first big storm, and then water finds the gap and soaks into what's underneath. It often shows up inside first: a stain on the ceiling, a corner that smells damp, a spot that feels soft. By then the crack has been open for a while.
3. Why another tube of sealant only buys time.
So the usual answer is another bead of sealant on top, and on a seam that has only just started to crack, that's good upkeep. Keep doing it. But the new layer sits in the same sun as the old one did, so you're back on the ladder again before long. Every summer of patching is one more summer the roof spends in full sun. What the seams need is less sun on them in the first place.
4. Why white, and why just the roof.
This cover takes only the roof, because that's the part in the sun all day. The white 210D Oxford fabric is waterproof and made for strong sun, and the edge hangs 30 to 40 cm down the sides, so the joint between roof and wall sits under fabric too. It fits over rooftop air conditioners, roof vents and skylights. If you've got a lot of gear up there, go one size up. Nothing hangs lower than that edge, so the door, the windows and the hatches stay clear.
5. One person, a step ladder, and it stays put.
You don't need a second pair of hands. Unfold it on the roof, pull it into place from a step ladder, and hook the woven straps under the edge of the body on all four sides, with two more across the top. The straps are woven webbing, not elastic, so they don't stretch out, and when they're pulled tight the cover doesn't flap or rub against the paint.
Your length, your price, before you click anything
Every size is 3 m wide, so the only thing to measure is the length: the body, drawbar not included, rounded up to the next size when you land between two. One cover costs what its row says. On the product page the bundle box opens on a 2-pack, so with one caravan, switch it to 1 pack and you pay the row.
Nothing here is shorter than 5.5 m or wider than 3 m. A smaller van, or a wider one, needs a different cover, and we'd rather lose the sale than your trust.
The questions owners ask before they cover the roof
Will it trap moisture underneath?
It can if it goes on wet, so don't put it on wet. The fabric is waterproof, which means little air moves under it. Wait for a dry day before you fit it, and after a storm let it dry before you take it off and fold it.
Will it rub the roof or the paint in the wind?
A full cover rubs because it hangs loose down every side. This one covers the roof and only the top 30 to 40 cm of the walls, and it's strapped on all four sides with two more straps across the top, so the wind can't get under it and lift it. Pull the straps tight and it stays put.
Does it fit over the air conditioner and the vents?
Yes. It goes over rooftop air conditioners, roof vents and skylights. If your roof carries a lot of gear, go one size up so the edge still reaches 30 to 40 cm down the sides.
How do I pick the size?
Every size is 3 m wide, so you only measure the length: the body, without the drawbar, rounded up to the next size if you land between two. The table above gives the price for each length.
Can one person put it on?
Yes. From a step ladder you unfold it on the roof, pull it into place and hook the straps under the body edge.
Does it fit a fifth wheel?
We don't know yet how it sits on the raised front of a fifth wheel. We don't have the maker's answer on that, and an honest gap beats a confident guess.
What does shipping cost, and how long does it take?
Shipping to Australia is free and takes 5 to 10 business days.
What if it's wrong for my van?
You have 90 days. Wrong size, wrong roof, whatever the reason, tell us within 90 days and either the cover comes back to us or the money goes back to you.
So what do the owners who cover the roof do differently?
They stop waiting for the perfect cover and fit the one they'll actually use. Length off the table, bundle box set to 1 pack, and the 90 days treated as a test drive: on goes the cover before the worst of the summer, and if it turns out wrong for their van, back it goes.
The box holds one cover in the length you picked: white 210D Oxford that takes strong sun and sheds rain, 3 m across, woven webbing straps on all four sides with hooks for the edge of the body, and two straps for the top. Shipping to Australia is free and takes 5 to 10 business days, and it comes with the one thing we can promise: 90 days to return it or get your money back.
I'll be honest:
this cover isn't for every van. Shorter than 5.5 m or wider than 3 m, and none of the nine sizes fit, so keep your money. If you want the sides and the wheels covered too, buy a full cover from someone who makes one. And on the raised front of a fifth wheel, we don't know yet how it sits.
Last, the price. It's set by length, and the table above shows the price for one cover. The bundle box on the product page opens on a 2-pack, so if you own one van, click it down to 1.
That's why you can try it risk free.
Read your length off the table, or open the product page and pick it there. Then let the 90 days do the deciding. Whatever the reason, tell us within 90 days and either the cover comes back to us or the money goes back to you. Shipping to Australia costs you nothing.