Got a Slipped or Cracked Tile? Here’s What to Do.
It’s one of the most common calls I get across Brighton and Hove. You look up and see it – a tile that’s slipped out of place or one with a nasty crack right down the middle. Your first thought is probably, “Can I just push it back up?” or “Can I slap some sealant on it?”
Let’s be brutally honest. Yes, you can. You can climb up there with a tube of roofing silicone or a can of Acropol and patch it up. It might even stop the immediate drip for a few weeks, maybe a month if you’re lucky. But it’s a sticking plaster, not a fix. That patch will fail under the Sussex sun and rain, and you’ll be back to square one, likely with a worse internal water stain.
So, What Actually Causes Roof Tiles to Fail?
Before you blame the seagulls, understand that tiles fail for a few common reasons, especially on the terraced houses we see all over Worthing and Brighton:
- Nail Fatigue: The original nails used to fix the tiles to the wooden battens simply rust and fail over decades. The tile loses its anchor and gravity does the rest.
- Storm Damage: A strong coastal wind can get underneath a tile and lift it, snapping it or ripping it from its fixing.
- Mortar Failure: The cement mortar holding your ridge or hip tiles in place degrades over time. It becomes brittle, cracks, and falls out, leaving the tiles vulnerable.
- Foot Traffic: Someone walking on the roof incorrectly (like a clumsy satellite installer) can easily crack brittle clay or concrete tiles.
How I Properly Repair a Broken Roof Tile
A quick patch-up is not in my vocabulary. Doing it right means ensuring it won’t leak again. Here’s my no-nonsense process:
- Isolate the tile: I carefully slide up the two tiles directly above the broken one and wedge them to hold them up. This gives me access.
- Remove the offender: I break out the rest of the damaged tile and use a slate ripper or hacksaw to cut the old nail holding the top of it in place.
- Check the underfelt: This is the critical step most DIYers miss. I inspect the roofing felt underneath. Is it torn? Rotted? If there’s a hole here, just replacing the tile is pointless. I’ll patch the felt properly first.
- Fit the new tile: I slide a new, matching tile into place. I don’t just rely on gravity; I secure it with a new galvanised or copper nail. If nailing isn’t possible, I’ll use a suitable clip or adhesive that’s designed for the job.
- Settle everything back: I remove the wedges and let the overlapping tiles slide back down, ensuring a perfect, weatherproof fit.
This is the only way to guarantee a permanent fix. If you suspect the leak isn’t a tile but is coming from around a chimney stack, you could have problems with your lead flashing, which is a completely different job.
When is it More Than Just a Few Broken Tiles?
This is the big question. If you’re finding new slipped tiles every few months, it’s a sign of a systemic problem. The nails across the entire roof slope are likely failing. At this point, replacing individual tiles is just chasing your tail. It’s far more cost-effective to consider a full pitched roof replacement. It sounds like a big job, but it gives you peace of mind for decades to come.
Similarly, if your gutters are constantly clogged, water can back up and overflow behind your fascia boards and under the tiles themselves. It’s vital to focus on keeping your gutters clear to protect your roof structure.
Finding the Source of the Leak is Everything
Water is tricky. The drip in your bedroom ceiling might be from a cracked tile ten feet away. The water gets under the tiles, runs down the felt, and finds a weak spot to enter your home. That’s why a proper investigation is key. A small, persistent leak can cause huge damage to your roof timbers over time.
If you have an active drip coming through your ceiling right now, don’t wait. That’s a priority job, and you need an urgent leak repair to minimise the damage.
My Advice for Homeowners in Sussex
Don’t ignore a slipped tile. It’s your roof’s way of telling you something is wrong. While a quick DIY dab of silicone might seem tempting, it’s rarely the right answer and often makes a professional repair more difficult later on.
I believe in being upfront. I provide fixed-price quotes so you know exactly what the cost is before I start. You even get a client portal with daily photo updates of my progress. If you’re worried about your roof, the best first step is a proper look. You can book a free, no-obligation roof inspection with me, and I’ll get up there and tell you exactly what’s going on, with no sales waffle.