Rooflights and skylights in Partridge Green

The village stayed small until 1861, when the Horsham to Shoreham railway arrived. Its population then grew enough that St Michael and All Angels Church was built in 1890 to keep pace.

That is a useful clue for a roof survey, though it is only a clue. A place that grew in stages has roofs of several ages, and the age of a roof decides how a new opening is framed, flashed and finished. The record for Partridge Green names no roof materials and no single house type, so we assume neither. Tile, slate or something else is found on the day, in the loft, with a tape and a torch, and the flashing kit is chosen to match what is actually on the roof.

The line closed in 1966, and the old route is now the Downs Link bridleway, which runs through the village. Nobody sits under a train any more, so there is no rail corridor to plan for. The sound a rooflight here has to deal with is, for the most part, the weather.

Every loft conversion and every roof window begins with the same question: what is under the covering? The answer decides the job far more than any postcode.

At survey we look at the rafters and their spacing, the size of the opening a window would need, and whether a trimmer has to be added on either side. Cutting a rafter changes how a roof carries its load, and the new framing has to pick that load up. In an older roof the timbers may be smaller than a modern eye expects, and they may have moved over the years. That is normal. It is one reason we measure twice and never work from a catalogue size.

We also look at the covering. Clay and concrete tiles take a flashing kit made for tile profiles. Slate takes a different kit, and natural slate that has gone brittle needs careful handling around the opening. Whatever is found, the flashing is matched to the covering on the roof, not to the one on the brochure.

The research for this village names no flight path and no live railway or motorway. So we do not invent one. The sound a rooflight here meets is rain on glass.

Flat panes and lanterns drum in a downpour. The glass is stiff, the drops are heavy, and there is nothing soft between the sheet and the room. A thin single pane over a kitchen or a garden room can sound like a tin roof. Two things change that: the build of the glazing, and the way the unit sits on its upstand.

A laminated pane has a plastic interlayer that damps vibration. Pair it with a second pane of a different thickness, and the two do not ring at the same pitch. A wider cavity helps further. Seals must be continuous and properly compressed, because a gap is an easy route for sound. The upstand itself should be insulated and lined, so the drumming does not pass through the kerb into the room.

Recent housing has been approved on the edge of Partridge Green. One scheme is 101 homes from Croudace Homes on land west of Bines Road, and a further 81 homes were approved by Horsham District Council.

New houses tend to share a pattern: a modern roof, frequently a truss roof with less loft room, and a compact plot. After a few years, owners start to look at what can be done with the space. A loft room is one answer and a rear extension another. Both ask for a rooflight, and both are checked against current regulations on the day.

A modern roof is a different problem from an old one. Trussed rafters cannot simply be cut through, so a window opening may need a structural engineer to specify the trimming. We raise that at survey if the roof is of that type, and we say so in the quote instead of finding out after the work starts. If you are weighing skylights for a newer house, choose the glazing and the size together.

Every quote comes with a one-page written quiet spec for the room in question. It is a document, not a claim, and it is written from what we heard and measured in the house.

For a loft bedroom in a village with no flight path and no railway, the survey listens for rain on the existing window and the general quiet of the lane outside. We note how much light the room has at the moment and which wall gets the sun. Then we write the build: the glazing, the seals, the upstand and the flashing. You can read exactly what you are paying for, and so can the next owner of the house.