Chapter one
Roofs on the houses that grew around the airfield
Housing spread around the old airfield after 1983, so its earliest roofs have now passed 40 years and their fixings and edges need checking.
Wikipedia records that the Tangmere airfield was founded in 1917 as a Royal Flying Corps training aerodrome, and that the Royal Air Force station finally closed on 16 October 1970. The derelict buildings stood unused until 1983, when Seawards Properties Ltd bought them, and housing then spread around the airfield. For a roofer, that sequence gives a rough age. A house from the first years of that development is now more than 40 years old. That is early middle age for a concrete-tiled roof, which Marley expects to last for around 60 years while stressing that this is an expectation, not a promise. MyBuilder puts replacement of concrete tiles at 30 to 50 years. Between the two, the roof is rarely at the end of its life, but it is at the age where small faults begin to show.
At a glance
- The airfield opened in 1917 and closed in 1970
- Housing followed the 1983 sale of the derelict buildings
- Ridges, verges and soffits are the first to tire
1.1 What tires first
The parts that fail early are rarely the tiles themselves. Where ridge and hip tiles sit in a mortar bed, the joints open as the mortar weathers, and the verge, where the tiles run out over a gable, can loosen when its bedding cracks. Underlay beneath the tiles may have gone brittle at the laps. On the outside of the house, plastic soffits and fascias are typically replaced every 10 to 20 years, according to MyBuilder, so the roofline of an early house may already be on its second set. Gutters sag at the joints and spill onto the wall rather than reaching the downpipe. We look at each of these in turn from a ladder and the loft, and keep a photo record of what we find.
Loft insulation deserves a look too. Thick insulation pushed hard against the underlay at the eaves can stop air moving through the roof space, which invites condensation, so we check the air path is open before blaming the tiles for damp in the loft.
1.2 Repair, re-fix or re-cover
Most of these jobs are repairs. Ridge tiles can be re-bedded and fixed back mechanically, or replaced with a dry-fix ridge system tested to BS 8612:2018. Verge tiles are re-bedded and pinned. Where several faults share a slope and the battens beneath are sound, a local repair is the right job and we will say so. Where the underlay has failed across the roof, a re-cover is more honest than another patch. Our ridge tile repairs page covers the ridge in detail, and our gutters, soffits and fascias page covers the roofline.
Typical lifespans on a roof from the 1980s
- Concrete tiles
- Around 60 years expected (Marley); 30 to 50 before replacing (MyBuilder)
- Clay tiles
- Minimum life of 60 years (Marley)
- Plastic fascias and soffits
- Typically replaced every 10 to 20 years (MyBuilder)
- Lead flashing
- Over 80 years, more in heavier codes (MyJobQuote)
- Dry-fix ridge standard
- BS 8612:2018
Source: Marley; MyBuilder; MyJobQuote; BSI, fetched October 2026





