Skylight Installation in Shotley Gate

Shotley Gate sits at the very end of the peninsula, where the Orwell and the Stour meet before running out past Harwich and Felixstowe. Water on two sides, and open channel in both directions. Most sites have one exposed aspect and one sheltered one. Here there is nowhere on the roof that gets a quiet life.

Just under nine miles from Ipswich, about twenty-five minutes down the B1456 with the peninsula road running the whole length. Straight in and straight out, no access problems.

Driven rain from two quarters changes the detailing

Wind-driven rain does not fall, it travels. On a normal inland site the roof sees driven rain mostly from the prevailing south-westerly, so the elevations that need the most attention are predictable. At Shotley Gate the fetch is open to the north-east up the Stour and to the south-east down the Orwell, and a north-easterly here arrives across water with nothing to slow it.

What that does to a rooflight is put pressure on the side flashings, which are the weakest part of any roof window detail. The head is protected by the course above. The apron at the foot sheds downhill. The sides rely on the lap between flashing and covering staying tight, and driven rain arriving across the slope rather than down it is exactly the load that tests it.

What we do about it

• Full fixing complement, always. Manufacturer instructions give a minimum. On this site we use every fixing position, and we check each one lands in a rafter or a solid batten rather than an edge.
• Side flashings mechanically clipped. Proprietary kits are designed to be retained, not just dressed. On a two-sided exposure that distinction is the job.
• Extra lap where the kit allows it. Some flashing kits offer an alternative lap dimension for exposed conditions. Where that exists, we use it.
• Underlay collar dressed and taped. The underlay collar is the second line of defence. Water that gets past the flashing on a bad night should land on the underlay and run out at the eaves, not onto the ceiling. That only happens if the collar is dressed and sealed properly.
• Stainless fixings on both aspects. Not just the one you assume is worse.

Salt loading here is at the strong end of estuarine

Let us be accurate. Shotley Gate is estuarine, not open coast. The North Sea is further out past Harwich harbour. But it is the most exposed estuarine site on our patch, with saline water on two sides and a long fetch in both directions, and salt loading here is noticeably higher than at somewhere like Nacton further up the Orwell.

So the specification sits at the top of the estuarine range: stainless fixings as standard on every elevation, careful attention to the finish of any exposed metalwork, and a preference for units where the external cladding is factory-finished aluminium rather than a painted or unprotected component. Where a property sits right on the waterfront with genuinely unbroken exposure, we will discuss stepping up further, and we will explain why rather than just adding a line to the price.

What we fit at Shotley Gate

• Pitched roof skylight installation across the village stock, with the exposure detailing described above as standard rather than as an upgrade.
• VELUX, Keylite and Roto units, with the flashing kit matched to the actual covering and, where offered, the exposed-conditions lap.
• Flat roof skylight installation on extensions, with a taller kerb than standard because wind drives water up an upstand here as well as across it.
• Energy efficient skylight installation where a windward room needs the glazing to work harder against heat loss.

The stock at the end of the peninsula

Shotley Gate grew up around the water and the old naval training establishment at the point, so the housing is a mix: former service and estate housing, twentieth-century village stock, and newer waterfront redevelopment around the marina. The old training establishment closed decades ago, and its landmark mast still marks the skyline, but the housing that served it remains part of the village’s stock and turns up regularly in the work we do here. The eras carry different roofs, from hand-cut older structures to modern trussed ones and the clean roofs of the recent builds, and the survey reads which you have from inside the roof space. What ties them together is the position, because whatever the age of the roof, it sits where two estuaries meet and every slope is a weather slope. That is the constant the specification is built around, not the age of the timber.

Access is not the problem it can be further up the peninsula, because the road runs the length of the village straight to the point, so scaffold reaches most properties without difficulty. The waterfront plots are the ones worth a closer look, where a frontage tight to the water can limit where scaffold stands.

Waterfront plots, and when we step the specification up

The marina-side and waterfront properties are the ones genuinely on the point, with unbroken exposure across the water on more than one side and no neighbouring roofs to break the wind. On those we do not just apply the standard estuarine detailing and leave it there. We look at the exact fetch, the aspect of each slope and how much shelter, if any, the plot has, and where a property is fully in the open we discuss stepping the specification up towards the marine end: closer fixing centres still, factory-finished aluminium external components rather than painted ones, and a laminated inner pane on any large unit. We explain the reason for each step rather than adding a line to the price, because the honest position is that Shotley Gate is strong estuarine, and a genuinely unbroken waterfront plot sits at the very top of that band.

None of that is a reason to over-specify an ordinary plot a few streets back from the water. Those sit comfortably in the standard estuarine band, with stainless fixings on the exposed elevations and the full flashing detailing, and we would rather match the specification to the actual plot than bill every house on the peninsula as if it were on the point.

Opening units on a windy roof

An opening rooflight earns its place at Shotley Gate, because rooms here benefit from purge ventilation as much as anywhere, but a vent on an exposed two-sided site needs specifying with the wind in mind. A unit that swings freely catches the gale, so we set the restrictor and the hinge friction for the exposure and favour designs that hold their position rather than being pushed about. Where a rooflight sits out of reach above a stair or in a tall room, an electrically operated unit with a rain sensor is the practical answer, because it closes itself when the weather turns and nobody is left reaching for a pole in a rising wind. The sensor matters more here than inland, since the weather can turn quickly off the water and a vent left open on the wrong night lets driven rain straight into the room. On a fixed unit the same exposure logic applies to the glass rather than the opening, with a laminated inner pane on anything large. We talk through opening against fixed at survey, because on this site the choice is as much about how the unit copes with the wind as about how much air the room needs.

Getting a price in Shotley Gate

Surveyed on the roof, priced once in writing, and it holds unless the specification changes. Ten-year workmanship guarantee, installed to current Building Regulations, by installers with 25 years fitting rooflights on this coastline.

We cover the rest of the peninsula at Chelmondiston and Holbrook, and up the Orwell at Nacton. The full coverage list is on areas we cover.

Request a fixed quote. Tell us which way the roof slopes face, because at Shotley Gate the aspect changes the detailing on both sides rather than just one.