Stage 01 · Background
Tile-hung walls and woodland edges
Alfold is a rural parish on clay, ringed by trees, where walls as well as roofs are covered in clay tile.
The Victoria County History of 1911 describes Alfold as a rural parish on the Surrey and Sussex border, about 2,974 acres, lying on Wealden clay and largely wooded. It records glass-houses that once stood in Sydney Wood, and Aubrey's sight of French glass-makers' graves in the churchyard, long after the industry had died out. Today that history has left us a village of scattered farms, cottages and a church lane, and a good deal of tree cover around them. Both shape the way roofs age here, so we pay as much attention to the surroundings of a roof as to the tiles themselves, and we ask when the gutters were last cleared before we pick up a ladder.
What is tile hanging, and why does it matter to the roof?
Tile hanging means fixing small tiles to the face of a wall, hooked over battens, so that the wall sheds water like a roof. The same account says tile-hung cottages are grouped around the church lane. A roofer cares because the wall and the roof meet along a line that has to shed water in two directions at once. At that junction we check the flashing, the lowest course of hung tiles and the way the eaves tuck in. A small gap there can let water run behind the wall tiles and into the timber.