You notice it after a big night of rain. A brown ring on the bedroom ceiling that wasn’t there last week, or a steady drip landing in a saucepan by the hallway. A leaking roof is one of those problems that jumps from “I’ll sort it later” to “why is the plaster sagging” faster than most people expect. If you are looking up at a damp patch right now, this is written for you.
We look at leaking roofs across Narre Warren and the surrounding suburbs most weeks. The reassuring part is that the majority turn out to be a repair, not a whole new roof. The hard part is finding where the water is really getting in, because that is almost never directly above the stain you can see.
First, take the pressure off the ceiling
Before you think about the roof itself, deal with what is happening inside. A ceiling holding water is heavier and more dangerous than it looks.
- Move furniture, electronics and anything you care about out from under the wet area.
- If a section of ceiling is bulging and heavy with water, put a bucket underneath and pierce the lowest point of the bulge with a screwdriver to let it drain in a controlled way. A single small hole is far better than a whole sheet of plaster coming down at once.
- If water is anywhere near a light fitting or downlight, switch that circuit off at the meter box and keep clear of it.
- Take a few photos and note the date. If you end up making an insurance claim later, that early record helps.
Please don’t climb up on a wet roof to investigate. Tiles are slippery, metal is worse, and a fall does more damage than the leak. The inspection can wait until it is safe.
Where Narre Warren roofs actually spring a leak
Most of the homes we look at around here are tile, with a good share of metal, and both age in fairly predictable ways. When a roof starts letting water in, it is usually one of these:
- Cracked, slipped or broken tiles. A single hairline crack is enough. Hail, foot traffic from other trades, and decades of hot-cold cycling all take their toll.
- Failed pointing and ridge capping. The mortar along the ridges and hips goes brittle and crumbles, and the gaps left behind let water track straight underneath.
- Rusted or lifted flashing. The metal that seals around chimneys, skylights, vents and wall joins is a very common culprit once it corrodes or works loose.
- Blocked valleys and gutters. When the valley irons or gutters fill with leaves, water backs up and pushes in sideways under the tiles instead of running off.
- Perished sarking and plain old age. On an older roof the sarking underneath can break down, so there is no second line of defence once a tile lets go.
If you have cracked or moving tiles, it is worth reading our separate guide on what to do about cracked roof tiles, since that is one of the leaks we chase down most often.
The stain is in one room, the leak is three metres away
This is the bit that catches people out. Water rarely drops straight down. It gets in at one point, then runs along a batten, a rafter or the underside of the sarking until it finds a low spot or a nail to drip off. By the time it reaches your ceiling it can be well away from where it started.
That is why poking around directly above the stain often finds nothing, and why sealing the first suspicious-looking crack you spot frequently doesn’t fix the problem. Following the water back to its real entry point is most of the job.
Why heavy rain finds a leak a light shower won’t
A roof that stays dry in a passing shower but drips in a proper storm is behaving normally for a roof with a weak spot. A couple of things are going on. Wind drives the rain sideways and up under the edges of tiles and flashing, past defences that cope fine with water falling straight down. And a downpour simply delivers more water than a half-blocked valley or gutter can carry, so it overflows and backs up where it shouldn’t. If your leak only ever appears in the worst weather, that points strongly at flashing, valleys or gutters rather than a single cracked tile.
How we track the leak down
When we come out, we start with a proper look rather than a guess. That means getting up top safely, checking the tiles, pointing, ridge capping, flashing and valleys, and often getting into the roof cavity to see where the timber and sarking are actually wet. Where the source is stubborn, a controlled hose test lets us recreate the leak and watch exactly where it comes through. We photograph what we find and show you, so you are not paying for repairs you can’t see the reason for.
From there most jobs are a straightforward fix: replacing broken tiles, re-bedding and repointing a ridge, resealing or renewing flashing, or clearing and correcting a valley. If you want the detail on how we approach a wet roof, our tile roof leak repair service page walks through it. Every repair we do is backed by our 10 year warranty on workmanship and products, so a fixed leak stays fixed.
A blocked gutter is one of the cheapest causes to rule out yourself, and often the reason behind a mystery leak. Our local gutter cleaning guide covers how backed-up gutters push water where it doesn’t belong.
Leaving it costs a lot more than fixing it
A small leak is never just a small leak for long. Water sitting in a roof cavity soaks the insulation, so it stops working. It feeds mould in the ceiling and wall cavities. It rots timber battens and rafters, and it stains and eventually collapses plaster. What starts as a $200 fix can turn into replaced ceilings and structural repairs over a couple of wet seasons.
There is an insurance angle too. Home policies tend to cover sudden, one-off storm damage, but they generally won’t pay for damage that built up gradually from a roof that was left to leak. Acting early keeps the repair small and keeps you on the right side of that line. If you are in Narre Warren or nearby and there is water coming into your home, get it looked at while it is still a repair. Call Cam and the team on (03) 8738 2128 to book a no-obligation roof inspection, and we’ll find the source before it turns into something bigger.
Straight answers about roof leaks
What should I do if my roof is leaking?
Protect the inside first. Move your belongings, contain the water, and drain any bulging ceiling through one small hole so it doesn’t collapse. Kill power to any nearby light fittings, then book a roofer to find and fix the source. Don’t get up on a wet roof yourself.
Why does my roof leak only in heavy rain?
Heavy rain comes with wind that drives water sideways under tiles and flashing, and it delivers more water than a partly blocked valley or gutter can drain. Both let water in where a light, straight-down shower never would. A leak that only shows up in storms usually points to flashing, valleys or gutters.
Is it normal for a roof to leak a little?
No. A roof in good order should keep every drop out, even in a downpour. A small or occasional leak is an early warning, not something to live with. It is far cheaper to chase down now than after it has soaked your insulation and timber.
What is the most common cause of roof leaks?
On the tile roofs common around Narre Warren, cracked or slipped tiles and failed pointing on the ridges lead the list, closely followed by rusted or lifted flashing around penetrations. Blocked gutters and valleys cause a lot of the leaks that only appear in heavy rain.
How long can you leave a leaking roof?
As little time as possible. Even a slow leak keeps rotting timber, spreading mould and ruining insulation every time it rains. Leaving it also risks your insurer treating the damage as gradual wear rather than a sudden event, which can affect a claim.
My roof is leaking, who do I call?
A local roofer who repairs leaks is your best first call, not a general handyman, because finding the true entry point is the skilled part. If the ceiling is actively sagging or water is near electrics, deal with the immediate safety issue first, then get a roofer out to inspect and repair.
