Chapter one
Young roofs on the Castle Park estate
On a roof under ten years old, faults appear at details and fixings, not in the covering itself.
Persimmon's Castle Park at West Durrington launched in 2016, with two- and three-bedroom homes on the north-western edge of Worthing, and its final release of 120 properties came in 2022. A roof of that age has not weathered out. When water gets into one, the covering is rarely the cause. The cause is a detail: a ridge tile that was never properly fixed, a verge that has lifted, a valley that was dressed too tight, or lead at a wall junction that has pulled out. Our survey therefore reads the roof like a joint-by-joint inspection, from the ridge down.
At a glance
- Castle Park launched in 2016 and finished in 2022
- Ridge, verge and valley details come first
- Dry-fix ridges are tested to BS 8612:2018
1.1 What goes wrong first
Where a ridge was bedded in mortar alone, hairline cracks let rain behind the tiles. Since the 2014 revision of BS 5534, ridge and hip tiles should be fixed mechanically as well, and a dry-fix ridge, tested to BS 8612:2018, swaps the mortar bed for clips over a ventilated roll. Underlay laps can tear at the eaves, where it dips into the gutter, and a torn lap lets water reach the battens. Vents, flues and satellite fixings are other places a tiler may have cut a tile short. Our ridge tile repairs work covers the ridge itself, and every fault goes into the photographs that accompany your quote.
1.2 Loft condensation on a newer roof
Damp in a modern loft is not always a leak. A newer house is built tighter, and warm moist air from rooms below can condense on the underside of the roof. Where the underlay is high-resistance, Marley asks for an unbroken 10mm opening at the eaves as soon as the pitch goes beyond 15 degrees, plus extra venting at the top of steep or long roofs. If the eaves are blocked by insulation, or vents are missing, the ceiling shows the damp even though the tiles are sound. We check the loft for that first, because a repair on the roof would not cure it.
1.3 New home, who to call
Before paying for a repair on a house this young, ask the developer or the provider of the home's warranty whether the fault falls to them. If it does not, or you would rather have the work done now, the cause comes first, and the quote that follows is for the smallest job that actually cures it. We leave the site tidy.






