Chapter one
Flint, lead and the old village around St Andrew's
Ferring's old core was built in flint, and at the point where roof meets flint wall, the lead joint determines whether the masonry stays dry.
Ferring's old village is a small, tightly drawn pocket. Arun District Council's conservation area guidance centres it on St Andrew's Church and includes Ferring Street south of the shops, Church Lane, and Ferringham Lane north of Grange Close, with twentieth-century housing all round. What holds the pocket together, in the guidance's words, is flint, used for the houses and for the boundary walls. For a roofer, that points straight at one detail: the place where a roof slope ends against a flint wall.
At a glance
- Conservation area designated in April 1976
- St Andrew's is Grade I; two nearby buildings are Grade II
- Arun's Article 4 list names only Craigweil House

1.1 Where the slope ends against flint
A flashing, which is lead folded and pressed over the join, keeps water from tracking behind the wall. Flint is round and uneven, so the lead has to be pushed into a cut mortar joint and held there with wedges. Over the years the mortar weathers and the lead lifts a little, and rain begins to get behind it. The damp then appears indoors, on a ceiling or a chimney breast, well away from the true fault. So we begin by tracing where the water really gets in, and only then think about a price; smearing sealant over a failed joint merely hides it. The proper repair is to rake out the joint, set new lead and point it in a mortar that suits the flint. Our lead roofing page covers the metal and how long it lasts.

1.2 Listed neighbours and the parish church
St Andrew's Church is listed Grade I, and two buildings close by, The Old Barn and Church Cottage, are listed Grade II. On a listed building, repairs that are not made in matching materials can need listed building consent, so we plan to match what is on the roof and say early if a job is heading towards consent. The church itself belongs to the Anglican parish, and for as long as worship continues there, roof work is governed by the Church's faculty system and not by the council. An ordinary house in the conservation area is simpler: repairing like for like needs no planning permission as a rule. Arun's list of Article 4 directions names only Craigweil House, but before changing a covering the sensible step is a call to the council's planning team. Roof windows follow separate rules, set out in our roof planning permission guide. Old roofs with deep eaves can shelter bats and nesting birds, which the law protects, so we check before any stripping starts.
Mending a roof-to-flint junction
- Trace We follow damp on the inside face back to the flashing, the gutter or the wall head.
- Open up The failed joint is raked out so we can see how much sound mortar is left.
- Re-set New lead is dressed into the cut joint and wedged, not stuck down with sealant.
- Point The joint is filled again in a mortar that suits the flint around it.







