Chapter one
Clay tile roofs on the old Broyle
A brickyard worked the weald clay here from 1820 until the 1970s, which makes clay tile the natural place to start a survey.
Clay has a long record here. Ringmer brickmakers were being fined in the manor court in the late 17th century for digging clay on the Broyle, and the Broyle Brickyard opened in 1820 on a band of weald clay north of the turnpike road. It did not close until the 1970s. None of that tells us what is on your roof, and we never assume it does. What it does tell us is that clay brick and tile are part of how this corner of Ringmer parish was built, so a survey begins by finding out what covering you actually have.
At a glance
- The Broyle Brickyard opened in 1820 on weald clay
- Nails and battens usually fail before clay tiles do
- Marley's clay plain tiles need 30 to 40 degrees of pitch

1.1 Reading a clay tile roof from the ground
Plain clay tiles are small, thin and laid in overlapping courses, each one hung from a batten by two projecting nibs. Small tiles mean a great many joints, so most of the work in a repair sits in the fixings rather than the tiles. From the ground we look for slipped courses, sagging lines, patches of newer tile that do not match and moss held in the joints. Up in the loft, daylight at the tiles, damp staining on the rafters and softened battens all count. A tile that has dropped is rarely the whole story: the nail that held it, or the batten beneath, usually let go first.

1.2 Matching tiles, pitch and fixings
Matching matters on a clay roof. Replacement tiles need the right size, camber and colour, or the repair shows from the lane and sheds water differently. Tile makers also set a minimum pitch for each pattern: Marley's clay plain tiles run from 30 degrees for its Hawkins tile to 40 degrees for Canterbury, so a flatter roof limits what can be laid on it. Ridge tiles, the capping along the top, and hip tiles, the capping on the sloping corners, are mechanically fixed as well as bedded since the 2014 revision of BS 5534. Where a ridge has failed, our ridge tile repairs page explains re-bedding and dry-fix. Clay tiles are often said to last 60 years or more, but Marley's figure is a minimum life expectancy rather than any promise, and for old handmade roofs the Building Conservation Directory calls it a poor guide. You get photographs taken on your own roof, and we name the smallest job that fixes the cause.
Clay tile facts for a Broyle Side roof
- Plain tile minimum pitch
- 30 to 40 degrees by pattern (Marley)
- Ridge and hip tile fixing
- Mechanical fixing as well as mortar (BS 5534)
- Dry-fix ridge systems
- Tested to BS 8612:2018
- Clay tile life
- Minimum 60 years from building research tests (Marley), not a promise
Source: Marley; BSI; Building Conservation Directory, fetched October 2026





