Nail sickness is the corrosion and failure of the iron nails holding roof tiles or slates in place, common on Eastbourne roofs over 70 years old. Signs include multiple slipped tiles, tiles that lift easily, and debris in gutters. Once widespread, re-nailing or re-roofing is the only reliable fix.
Nail sickness is one of the most common roofing problems we diagnose across Eastbourne — particularly in Hampden Park, Willingdon, Langney and the post-war estates of BN22 and BN23. It affects properties built roughly between 1930 and 1980, where galvanised steel nails were used to fix roof tiles to timber battens. After 50–80 years, those nails corrode and fail — and the tiles they were holding start to slip.
What Is Nail Sickness?
Nail sickness is the progressive corrosion and failure of the galvanised iron or steel nails used to fix roof tiles. When the nail corrodes through, the only thing holding each tile in place is gravity and the friction of adjacent tiles. The tiles don't fall immediately — but they are no longer fixed, and any significant wind event, thermal expansion cycle, or maintenance footfall will start dislodging them.
Concrete interlocking tiles, dominant on 1960s–80s estates across Hampden Park and Langney, are particularly prone because they are heavier than clay tiles — the nail loading per fixing is higher, accelerating failure once corrosion starts.
Signs Your Roof May Have Nail Sickness
British Standard BS 5534 (the Code of Practice for slating and tiling) now requires mechanical fixing of every tile in most exposure zones — a direct response to widespread nail sickness in older roofs.
Source: BS 5534:2014+A2:2018, Slating and tiling for pitched roofs and vertical cladding
- Slipped or displaced tiles with no obvious physical cause — no storm, no impact
- Multiple slipped tiles in a short period — nail sickness tends to progress across a whole roof once it starts, not in isolation
- Your property was built between 1930 and 1980 and has never had a full re-roof
- Granule loss from concrete tiles — weathered concrete becomes more prone to slippage once the surface degrades
- Tiles that feel loose when touched during a gutter clean or inspection
How We Diagnose Nail Sickness
A proper diagnosis requires access to the roof surface. We lift a sample of tiles across several areas — ridge, mid-slope, eaves — and examine the nail heads and the batten condition. If nails pull free easily, are visibly corroded at the head, or show heavy rust staining on the batten, nail sickness is confirmed. We also check batten condition at the same time, since battens of the same era often need replacing alongside a re-nail or re-roof.
Repair vs Replacement: When Does Each Make Sense?
This is the key question, and the answer depends on the overall condition of the roof:
Repair (re-nailing) is appropriate when:
- Nail failure is localised to one or two elevations
- The tiles themselves are in good condition — no cracking, spalling or heavy algae penetration
- Battens are sound and dry
- The underlayer (felt) is not visibly degraded
Full replacement is the right call when:
- Nail sickness is present across all or most elevations
- Tiles are cracked, spalling or heavily weathered
- Battens are soft, rotted or stained — indicating water ingress over time
- The roof is already 70+ years old and the felt underlayer has degraded
In our experience across Hampden Park and Langney, properties from the 1960s–70s with concrete interlocking tile and original battens almost always warrant full replacement rather than re-nailing. The cost of re-nailing a roof that then needs full replacement in 5 years is poor value.
Costs for Nail Sickness Work in Eastbourne
| Job | Cost Range |
|---|---|
| Partial re-nailing (one elevation) | £800–£2,000 |
| Full re-nailing (entire roof) | £2,500–£5,000 |
| Full re-roof (nail sick + replace tiles) | £7,000–£14,000 |
If you are unsure which category your roof falls into, call us for a free survey. We will tell you honestly which option makes financial sense — we are not going to quote a full re-roof on a roof that only needs targeted re-nailing.
Getting a Nail Sickness Survey in Eastbourne
A nail sickness assessment requires physical access to the roof — we lift tiles in representative areas across all elevations and check nail condition and batten integrity. The survey takes approximately an hour on a standard semi and the written report is provided within 48 hours. We carry out these surveys free of charge across all of Eastbourne and East Sussex. If you have slipped tiles on a pre-1980 property that has not had a professional inspection recently, a survey is the right starting point — it tells you honestly whether repair or replacement is the correct decision.
Getting Professional Advice for Your Eastbourne Property
The guidance in this article applies to Eastbourne and East Sussex properties specifically. Local conditions — the coastal climate, the specific housing eras, the conservation area requirements — mean that generic UK roofing advice is not always applicable here. If you have a specific question about your Eastbourne property after reading this guide, call us. We carry out free surveys and give honest advice at no charge. We have been working on Eastbourne properties since 2003 and understand the specific requirements of every housing type and location in this area — from the Victorian seafront villas of Meads to the 1960s–80s estates of Ratton and Shinewater.
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