Stage 02 · The site
Weald clay, sandstone and sloping ground
The parish sits on Weald clay with Horsham stone outcrops, and the ground falls steeply to the Arun, which affects access.
Mannings Heath belongs to Nuthurst parish, which the county history places on Weald clay with outcrops of Horsham stone. The stone beds were once quarried commercially, and of the two apparently 17th-century buildings that survive here, one is of sandstone. We cannot read an old roof from the lane. When an older building comes up, we ask three things before pricing: is it listed, what is the covering, and what is the frame beneath it?
Several small buildings joined into one make their own puzzle. The golf club house north-east of the hamlet was converted from three cottages, and where cottages are merged, roofs meet in valleys and abutments that follow no modern plan. We trace each join and flash it to suit the roof as it stands.
The same care applies where a porch or turret meets a main slope, as on the 1881 chapel. A joint like that is sealed with lead flashing. Royston Lead's brochure lists Code 4 at 1.80 mm and Code 5 at 2.24 mm among the sheet weights used for flashings, and which suits a given joint comes down to the run's length and exposure, so we measure before anything is ordered.
Terms for an older roof
- Hip
- Outward angle joining two slopes
- Valley
- Gutter line where two slopes meet inwards
- Fascia
- Board running along the eaves
- Soffit
- Underside of the roof overhang
- Underlay
- Waterproof sheet below the battens