Rendered extension with a flat rooflight, brick houses behind
Ratby

Skylights and rooflights for Ratby's commuter-village homes

27.7 road miles south-east of Derby, a Leicestershire commuter village with old cottages.

Ratby mixes cottages of several centuries with plenty of newer homes. The dark spot is often a bathroom basin, so that is where we start.

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Village cottages and newer homes, both short of daylight

Small landing with a wooden balustrade under a roof window
A small landing with a wooden balustrade, dim away from the roof window.
A hallway with the front door closed, and nothing from outside reaching the stairs.

Rooflights for cottages and commuter-village lofts

In Ratby the usual choices are roof windows in a loft room, VELUX windows where the existing unit is being swapped, sun tunnels for a windowless bathroom or hall, and energy efficient rooflights when the old glass has had its day.

A commuter village gathers the practical jobs. People are out at work, the house is used in the morning and evening, and the rooms that matter are the ones used at those hours: the bathroom, the landing, the kitchen, the bedroom where you dress. Daylight from the roof at breakfast time and again after work is worth more than a view on a Sunday afternoon. We position the unit with those hours in mind, then choose a type that suits the roof and the room.

The full guide

From the basin up, in a Ratby bathroom

A bathroom under a pitched roof is one of the commonest dark rooms in a village house, and one of the neatest to fix. This is how a roof window over the basin is chosen, built and signed off, step by step.

Section drawing: a roof window in a pitched tiled roof, with daylight falling on a bathroom basinA two-storey house cut through from the roof to the ground floor. Numbered callouts: 1 Above the mirror; 2 Pivot or top-hung; 3 Flashing and kerb; 4 What gets checked.1. Above the mirror12. Pivot or top-hung23. Flashing and kerb34. What gets checked4
Section drawing: a roof window in a pitched tiled roof, with daylight falling on a bathroom basin
  1. Above the mirror
  2. Pivot or top-hung
  3. Flashing and kerb
  4. What gets checked

Callout 1

Putting daylight on the mirror, not the bath

Ask where the light is wanted in a bathroom and the answer is usually the basin. That is where you shave, brush your teeth and check your face before leaving. A rooflight set over the bath looks nice on a plan and does little for the morning routine. We stand at the basin, look up and mark where the opening should sit so the daylight falls on that patch of wall and face. A pencil mark on the ceiling beats any guess from the doorway.

What changes the cost of a bathroom roof window

  • Pitch and coveringA low pitch or tiled roof needs a different flashing kit.
  • New opening or swapA new opening means structural work; a swap does not.
  • Size of unitWider units need bigger trimmers and more lining.
  • Fixed, manual or electricElectric opening and rain sensors add components.
  • Inside finishTiling or panelling around the reveal adds time.

That sometimes means moving the window off the centre of the room. A roof window over the basin end, with the bath in the shadier half, makes a bathroom feel brighter than a central window would. It also keeps the opening away from steam, so the glass clears faster.

Height matters too. The sloping ceiling in a loft bathroom means the head height at the basin may be lower than at the door. A window that opens on a pivot is set so the handle can be reached from where you stand. In a small bathroom, an electric opening unit is worth considering for exactly that reason, as it removes the need to reach.

A bathroom is brightest where the mirror is, not where the plan looks neatest.

Callout 2

Which roof window opens the way you need

Roof windows come in a few styles, and the choice shapes how the room feels. A centre-pivot unit rotates on a bar near the middle of the sash, so the top swings out and the bottom swings in. It suits most pitched roofs and is easy to clean. A top-hung unit is hinged at the head and opens outwards like a window, which gives more headroom at the sill and a clear view.

For a bathroom, the sash matters for steam and privacy. Frosted or obscured glass can be specified in the factory, so you do not have to apply film afterwards. Many bathrooms also benefit from a blind that fits the frame, which is easiest to plan at the same time. A thermally broken frame helps the glass stay warm enough to resist condensation, and a ventilation flap lets air through when the sash is closed.

Replacing an old unit mostly means replacing aged glass, and a roof window fitted today has to reach the window limit that Part L sets. The quote names the figure.

Centre-pivot or top-hung over a basin

Centre-pivot

  • Easy to clean outside
  • Handle sits at the head
  • Suits most pitches

Top-hung

  • Better headroom at the sill
  • Clearer outlook when open
  • Handle at the bottom edge

Callout 3

Making the junction watertight

The glass gets the attention, but the junction with the roof does the work. A roof window is set into the slope on a frame that is tied to the rafters, and a flashing kit is lapped over and under the roof covering around it. On a tiled roof the kit is shaped to the profile. On slate it is formed course by course. A gap here is the one thing that makes a rooflight leak, and it is why the roof covering is checked before the order goes in. Ordering a flashing kit that does not match the covering is a common cause of trouble, so the kit is chosen from what we see on your roof, never from a guess.

Inside, the insulation is carried round the frame and the lining is closed against it, so there is no cold gap where condensation would form. The reveal is boarded, filled and painted, and in a bathroom we use a moisture-resistant finish.

On a roof that has been modified over time, a few extra tiles may need replacing around the opening. That is included in the survey so the quote is fixed, not an estimate that grows.

Four Ratby rooms and the unit they usually get

Typical match between a room, its dark spot and a unit.
RoomDark spotUnitOpens
Loft bathroomBasinRoof windowYes
LandingTop stepSun tunnelNo
Loft bedroomBed headRoof windowYes
Kitchen extensionWorktopFlat rooflightOptional

Callout 4

What the council and Building Control look at

Hinckley and Bosworth Borough Council decides planning matters in Ratby, and hinckley-bosworth.gov.uk is where its guidance sits. On an ordinary house a rooflight usually needs no planning application, thanks to permitted development, see our planning guide for the conditions. Flat and maisonette owners cannot use those rights. A listed house needs consent before almost anything is altered. Where a conservation area covers the street, an Article 4 direction could have taken the rights away, so we ask the council before ordering a thing.

Building Regulations are the second track. Opening up the roof structure for a new window is notifiable, and either the borough or a registered building control approver deals with it, while the notifying is our job. Under Part L a straight replacement is controlled fitting, and for the roof window itself the target is the window limit, shown as a 1.4 W/m²K figure or a WER band B rating.

Rooms in the roof add one more test. A window meant for escape needs 0.33 m² clear, with neither side under 450 mm, and its room has to sit within 4.5 metres of the ground. If two full storeys sit below the loft, escape is by protected stair, never by window. Bungalows and chalet bungalows are where a roof window can serve.

Reading Ratby's houses

Ratby is a commuter village of about 4,300 people, and for most of its history it was a small farming place with a few farms and open fields until enclosure in the 18th century. Its oldest known settlement was the Iron Age camp at Bury Camp, on the edge of the village. The houses we look at are a good deal younger, though some cottages in the village date back several centuries.

The older cottages are the ones that ask for the most care. Low ceilings, small windows and thick walls mean that rooms sit deep from the glass, and a roof window is sometimes the only way to give the first floor a working light. A low roof can also limit the headroom, which changes the choice between a pivot and a top-hung unit.

Beyond the old core, the village has grown with newer homes. Roofs here vary, with lofts of different depths. Some have been converted already and the bedroom is warm and dim. Others still have a boarded loft above a landing that never sees the sun. Each is a different answer. A roof window serves a converted bedroom, a sun tunnel serves a landing, and a replacement unit serves a bathroom whose old window has misted.

What a particular street holds only shows on a visit. The survey is where the answers come from. We climb into the loft, check the rafters and the covering, stand at the spot and measure. Then the quote is written and fixed. On paper you get the unit, its position, the lining, the access and the finish, and nothing in it moves once work begins. Should the loft hold a surprise, that is ours to absorb, not a new line for you to sign.

Planning a bedroom in the loft? Start with the loft conversion roof window notes, then book a survey. Tell us the room, the spot and what bothers you about it. That is all we need to start.

The same applies to a kitchen or utility room at the back of a newer house. A newer kitchen with a flat roof at the back can take a flat rooflight over the worktop, and a small lantern suits the dining end. We ask which end of the room you actually use before we draw anything.

Ratby, asked and answered

How far is Ratby from you, and is it inside your area?

Yes. By road Ratby is 27.7 miles south-east of Derby, which is inside our 30-mile reach. Surveys are free, and we price nothing until we have seen the roof.

Can a roof window go into a bathroom in the roof?

Yes, and it is one of the neatest fixes. We place the opening over the basin so the daylight lands where you use it, choose obscured glass if privacy matters, and line the reveal in a moisture-resistant finish so it copes with steam.

Does a replacement roof window need Building Control?

Swapping one for another is controlled fitting: the incoming roof window has to hit the Part L window figure, and the job can be signed off through self-certification. A brand new hole in the roof structure is different, needing approval, and we send that notification.

I have a dark landing but no loft room. What helps?

A sun tunnel is usually the answer. A dome on the roof and a mirrored tube bring daylight to the ceiling, with no structural opening to form. We check the tube run at the survey, because a long run with bends carries less light.

Will a roof window make my bathroom colder in winter?

A modern unit meets the current limit for a roof window, which is a good deal better than old single or early double glazing. The insulation is carried round the frame and into the lining, so there is no cold gap. A warmer inner pane usually means less condensation, not more cold.

Can you fit a rooflight in an old cottage with low ceilings?

Often, yes. Low ceilings change the choice of unit and the height of the handle, and thick walls can mean a deeper reveal. We measure the headroom at the spot and tell you which type will work before you commit to anything.

Can obscured glass be specified for a bathroom window in the roof?

Yes. Frosted or obscured glass is made into the pane at the factory, so there is no film to peel later. It keeps the room private while the daylight still comes through, which suits a bathroom under a slope that neighbours overlook from a higher window.

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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.