Street of brick semis with cars on the drives
Clay Cross

Clay Cross miners' terraces, with skylights and rooflights

On the A61, in old coal and iron country, 18.8 road miles north of Derby.

Clay Cross grew fast around its pits and ironworks, and the terraces it left are deep and dim. Point us at the dark stair and we begin there.

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Company terraces, long backs, stairs with no window

Freestanding bath against a rough plastered wall under a roof window
A bath against a rough plastered wall, in a room kept dim beneath the roof window.
Sitting room with a sofa and stone wall under a rooflight
A sofa and stone wall in a sitting room, shaded away from the ceiling light.

Rooflights that suit Clay Cross roofs

For older pitched roofs, conservation rooflights and roof windows; for stairwells under a boarded loft, sun tunnels; for rear kitchens, flat roof rooflights; and VELUX windows where a loft is being used.

A mining and ironworking town builds houses in rows, and rows share their faults. The stairs sit in the middle of the house, the rooms either side take the only windows, and the roof is close above a landing that has never had light of its own. That layout is a good match for a rooflight over the stairwell, because the roof is only a few steps above the dark spot. An old rear outshut with a flat top can take a flat rooflight to light the kitchen beneath it. A sun tunnel is the quieter option for a landing under a loft that is full of boxes and tanks, because it needs a much smaller opening in the slope.

The full guide

Clay Cross, one landing at a time

In a long row of workers' houses, the darkest place is the top of the stair. The roof sits right above it, but the slope may face the street, and older streets are the ones where planning needs a second look. The chapters below follow that stair from the bottom step to the council desk.

Section drawing: a conservation rooflight in a slate roof, with daylight falling on the landing at the top of the stairsA two-storey house cut through from the roof to the ground floor. Numbered callouts: 1 Top of the stair; 2 Old coverings; 3 Daylight down the flight; 4 Planning route.1. Top of the stair12. Old coverings23. Daylight down the flight34. Planning route4
Section drawing: a conservation rooflight in a slate roof, with daylight falling on the landing at the top of the stairs
  1. Top of the stair
  2. Old coverings
  3. Daylight down the flight
  4. Planning route

Callout 1

Why the landing never gets daylight

A narrow terrace is built around its stair. The front room and the back room each take a window, and the stair rises between them with nothing of its own. By midday the rooms are bright and the landing is still grey, lit only by whatever slips through a bedroom door. It is the place people have in mind when they call the upstairs closed in.

What shapes the quote for a landing rooflight

  • Width of the stairwellA broad stairwell calls for a bigger frame and longer timbers round it.
  • Depth of the light wellBoarding in the loft adds lining and insulation to the job.
  • Cutting into the coveringSlate, tile and stone each need their own flashing kit.
  • Opening or fixed unitAn opening unit adds hardware and a handle position.
  • Access to the slopeA rear slope behind a tight yard changes the lifting plan.

The fix is to bring daylight down from above rather than sideways from a room. Put a rooflight over the stairwell and daylight runs down the flight and spreads over the landing, so the top step shows without reaching for a switch. If it is set over a bedroom instead, the bedroom gains a little and the landing gains nothing. So we begin on the landing with a tape and a torch, and lay the opening out from what we see there.

Clay Cross has grown in layers, from the company rows of the nineteenth century to later council and private estates. The stair position changes with each layer, so we never assume it. In some houses it runs straight up from the front door. In others it turns at the back, and the best rooflight position moves with it.

The loft above is the next thing we look at. If it is open, the light has a short, direct path. A boarded loft, or one with a tank in it, gets a lined and insulated light well instead, so the shaft stays warm.

No window of its own, and the roof only a few feet over the top step.

Callout 2

Slate, tile and what the slope carries

Houses built for a coal and iron works went up quickly and were patched over a long time. A roof that began as Welsh slate may now be part slate, part concrete tile where a section was stripped and recovered. We read the slope before we promise a position, because the covering sets the flashing and the flashing sets how the unit sits.

On slate, the flashing has to work with the courses. Conservation rooflights were designed for this job. Their thin frames and single glazing bar hug the slates, which leaves the street view of the roof almost untouched. On a tiled roof, a roof window in a standard frame is often simpler and less costly to fit, and it opens fully if the loft is used as a room.

Rafters tell the rest. In a Victorian roof the timbers can be irregular, and a neat opening on paper may need a small adjustment in the loft. The framing round the opening is built to suit the roof as it is, not as a drawing wishes it were.

Weather matters on any exposed roof. Whatever the weather, the frame follows the pitch of the roof, and the flashing tucks beneath the courses above and lies over the courses below to carry rain away. That detail is the whole job on the roof, and it is why we fit the flashing kit made for the unit rather than mixing parts.

Callout 3

Sizing the opening to the stair

Bigger is not always better. A rooflight that is too large for a landing can heat the space in summer and lose warmth in winter, and one that is too small leaves the bottom of the flight dim. We size it from the floor plan, the pitch and the depth of the loft, then check it on site.

Where the stair is tall, a tall, narrow unit often suits better than a wide one, because it lets light follow the flight down. Where the landing is short and square, a roughly square unit centred above it spreads daylight to the doors either side. VELUX-style size codes help here. Take MK04 as an example. The first letter is the frame width and the number is its height, which makes sizes quick to compare.

The glass makes a difference. A rooflight is not a window and takes its own heat-loss limit, so we specify glazing that meets the current figure for the unit type, with a low-emissivity coating and a warm edge. That keeps the stair comfortable in January and stops the landing running hot in July.

Finish counts as much as glass. The light well is lined in white or a pale colour, with splayed sides, so the daylight reaches the stair rather than being swallowed by a dark shaft. The joint between ceiling and well is plastered and decorated, so the opening looks like a part of the house.

What goes on the survey sheet

Stair width and turn
decides where the opening sits
Loft height above the landing
sets the light well depth
Distance between rafters
fixes the unit width
Tiles or slates up there
chooses the flashing kit
Way the slope faces
affects light and planning

Callout 4

Clay Cross, the council and the rules

North East Derbyshire District Council decides planning here. Anything special about a street would appear on its pages at ne-derbyshire.gov.uk, whether the street lies in a conservation area or under an Article 4 direction, and we look at those pages for your address before the first visit.

Permitted development often covers a Clay Cross house, but conditions apply; our planning guide gathers them, with the government's own page linked from it. Flats and maisonettes sit beyond householder rights. Listed status adds a consent of its own for nearly all alterations.

Building Regulations run alongside. Cutting a new opening changes the roof's structure, so approval is needed first, from the council or a registered building control approver. Swapping one rooflight for another of the same size is controlled fitting for Part L purposes, and the new unit then has to satisfy the thermal limit that goes with its type. If the work needs notifying, we send the notification and the certificate follows.

Miners' cottages, company rows and later streets

Clay Cross was a small village called Clay Lane until the early nineteenth century. Coal and iron changed that, and the population trebled within a few decades. The Stephenson works built more than 400 cottages for its men, and street names such as Egstow Terrace date from that building. Those rows are the oldest homes you will meet on a survey, and they share a plan. Cottages of this kind often have two rooms a floor, a stair wedged between them, and a small extension at the back for washing and cooking.

Plans like that suit a rooflight, but the details matter. That back addition often has a lean-to or flat roof, and the room inside sits far from any wall window. Over the cooker, a flat rooflight or small lantern gives it daylight. The stair, as we said, is dark, and a pitched rooflight in the rear slope above it fixes that.

Later housing tells a different story. Council streets, private semis and newer estates round the edges of the town have a wider range of roof shapes. Some have hipped roofs with the loft converted, where a roof window with a proper opening makes the room usable. Others have shallow-pitch roofs on garages or porches, where a small fixed unit is all that fits.

The A61 runs straight through the town, and the Chesterfield side is a short drive to the north. Our surveys are arranged in advance, so you know when we are coming. We measure the room, look at the loft, photograph the roof from the ground and agree the position of the opening with you. Then a fixed written quote follows, and that figure holds when we arrive to start work.

If you live in an older row, the first question is usually which slope to use. The rear is the quieter choice and often catches more sky, but the front can suit a stair that runs back to front. We look at both, and at what the planning route allows, before we recommend one.

Clay Cross rooflight questions, answered plainly

Can a rooflight light a stair in a narrow terraced house?

Yes, when it is placed over the stairwell and not over a bedroom. Daylight drops along the flight and spreads over the landing floor. A boarded loft needs a lined light well, which we form and insulate as part of the job. We confirm the position at the survey before any price is set.

Does a rear extension roof in Clay Cross take a flat rooflight?

It can. A flat roof needs a kerb or upstand built to the roof's fall, and a unit sized to the room below. We check the deck and the structure first. A small lantern over a kitchen table is a common alternative when there is height to spare.

Who decides planning for a Clay Cross house?

North East Derbyshire District Council. Many rooflights on houses are permitted development, but flats, listed buildings and any area with extra controls differ. Our planning guide spells out the conditions and where to confirm them. Your address is checked before we visit.

Will a new rooflight make a cold spot on the ceiling?

Not when the light well is insulated and the glazing meets the current heat-loss limit. Part L sets one limit for rooflights and a tighter one for roof windows. We fit the unit with the right kit and line the well so it stays warm.

What does the day on the roof involve?

Time on the roof is short for one plain unit. Afterwards the opening in the ceiling and the well are finished indoors. If a boarded loft or an awkward stair complicates the job, we say so when we survey, well before the day.

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Where do you want the light? Tell us in the form: the worktop, the stair, the desk.

No obligation. We survey before we price.
We cover Derby and 30 miles around.