Chapter one
Hips, ridges and low pitches on cliff-top bungalows
A bungalow carries a lot of ridge and verge for its size, and a gentle pitch near the cliff edge raises the stakes on fixing.
Peacehaven is a planned place. Writing in 1940, the Victoria County History called it a holiday resort or bungalow-town, named for the end of the 1914 to 1918 war, when it was founded. Its plan was a grid of unmade roads, about a mile long and half a mile deep, laid out beside the main Newhaven to Brighton road at the cliff edge, and the coastal strip gained a parish of its own in 1929. A bungalow turns most of its footprint into roof, with no upper floor to shelter any of it. The ridge, hips and verges therefore take a bigger share of the weather than they would on a house of the same floor area, and a survey of such a roof begins along its top edge.
At a glance
- Pitches under 30 degrees can face severe suction
- BS 5534 expects ridge tiles to be mechanically fixed
- Dry-fix ridges are tested to BS 8612:2018

1.1 Ridge, hip and verge tiles
The ridge crowns the roof, a hip is the slanting line down to a corner where two slopes join, and the verge trims the edge of a gable end. Each has its own row of special tiles. Older work bedded them in mortar alone. Since the 2014 revision of BS 5534 that is no longer the method: the standard stops relying on mortar to hold ridge and hip tiles, so a screw or clip goes in as well. Mortar is still permitted. The alternative is a dry system, with tiles clipped onto a vented roll and no bedding at all; BS 8612:2018 sets the tests for it. MyBuilder quotes £40 to £60 per linear metre for a dry ridge, as a typical UK range. Our ridge tile repairs page compares the two routes.

1.2 Gentle pitches by the sea
A bungalow laid to a shallow pitch asks for more care, not less. On a roof pitched below 30 degrees, Marley says, the side that catches the wind may come under heavy suction. Wienerberger expects every single-lap tile to carry a mechanical fixing at the very least, with the whole fixing pattern set out in a specification written for the spot, its height above the sea and its exposure. On a re-roof we put the site to the tile maker and ask for that specification. We also check the minimum pitch for the tile you prefer before anything is ordered, since a tile used below its limit will not shed water as designed.






