Fitting a skylight and rooflight to the dormer bungalows of Irby's estates
Irby is a Wirral village of dormer bungalows, hipped-roof semis and concrete-tiled estates, with a few older sandstone and brick buildings around the village centre. For rooflight installation in Irby we start with the loft, because that is where most of the dark rooms are, and the skylight has to suit a plain roof.
8.6 road miles south-west of Liverpool city centre
Which rooms in an Irby bungalow or semi never see daylight?
- The converted loft bedroomOff Irby Road, a dormer bungalow keeps its loft room under the slope, with one small gable window and a sloping ceiling that swallows what light gets in.
- The inner hall of a bungalowIn the middle of a 1960s bungalow near Pensby, where the hall and the bathroom have no outside wall and rely on a bulb all year round.
- The extended kitchen-dinerAcross the back of a semi towards Thingwall that has been pushed out into the garden, leaving a deep kitchen-diner dim at the end away from the patio doors.
Loft bedrooms, bungalow inner halls, kitchen-diners
Skylight installation in Irby meets four kinds of roof: village cottages, inter-war semis, bungalows by the dozen and newer estate houses. These are the jobs Irby homeowners ask us about most often.
- Flat rooflights over garage conversions and single-storey rear extensions, set on an upstand deep enough to stay clear of puddles.
- Roof windows for the loft rooms and dormer bungalow slopes, set between rafters so the existing tiles are cut once and flashed back in cleanly.
- VELUX or equivalent units for concrete-tiled hipped roofs, chosen by the width the rafters allow before any size code is picked.
- Opening units over a kitchen-diner or a loft room that runs warm, operated from a wall switch or a handset you can reach.
A village that filled in with bungalows and semis
Most of Irby went up in the twentieth century, on the Wirral side of the Mersey, 8.6 road miles south-west of Liverpool city centre. The old part is small. A scatter of brick and local red sandstone buildings stands near the village centre, some of them former farm buildings and cottages with deep walls, low eaves and roofs that have been re-covered more than once. A few of these may be listed, and any owner of an older building here should ask Wirral Council before assuming anything.
Around that core came the houses that now define the village. On the older roads you find hipped, tiled inter-war semis. Later, and in far greater numbers, came bungalows: plain brick, low-pitched, often with a hipped roof of concrete interlocking tile, and very often with a loft that was converted afterwards with a dormer on the back. The estates of the 1960s and 1970s repeat the pattern with small variations, while the newer infill houses have steeper roofs and rafters sized to current practice.
This matters for rooflights because the roofs of Irby are mostly simple. The rear slope of a hipped bungalow runs long and clear, with the ridge along the house and rafters at regular spacing. That is good news for a roof window, which wants a clear stretch of slope. The difficulty is not complicated geometry. It is working out which of three or four plain options suits the room, and then keeping the structure sound while the opening is cut.
Dormer bungalows add a twist. The flat or shallow-pitched roof of the dormer cheek can take a small flat rooflight, and the main slope above it can take a roof window, so two different units sometimes end up on one loft room. We work that out from the room, not the catalogue. The bathroom beside it may be better served by a sun tunnel, because the roof above is the wrong shape for anything wider.
Older cottages are a separate case. Their roofs are steeper, the timbers are older and the spacing is rarely even. A new opening has to be framed with proper trimmers rather than assuming the rafters will behave, and the covering may be clay tile or slate that has to be matched rather than replaced with something modern.
- Hipped bungalow roof with a long clear rear slope: roof window between rafters
- Dormer cheek or garage conversion with a flat roof: flat rooflight on an upstand
- Sun tunnel through the loft for a hall or bathroom with no outer wall
- Rear extension with joists already in place: lantern sized to what is there
- Older cottage with irregular timbers: framed opening and a matched covering
Exposed ground towards the Dee, and the flashing it demands
Irby sits on rising ground on the western side of the Wirral peninsula, and from the high parts the land falls away towards the Dee estuary and the hills of north Wales beyond it. There is little between a west-facing roof here and open water. Rain arrives with a lot of horizontal movement behind it, and in a gale the wind lifts across the slope instead of sliding over it. Roofs towards the estuary side feel this most, while those tucked behind tall hedges or among mature trees are more sheltered.
That exposure is why the effort goes into the edges of the opening. Weather finds the junction between the glass and the roof first, so the flashing and the way the tiles lap into it matter more than the unit itself. On a concrete interlocking tile roof, the soakers or a purpose-made flashing kit must follow the profile of the tile, and the top edge needs the covering lapped over it so wind-driven rain cannot be pushed up and under. On a plain clay tile or slate roof, the flashing is dressed in pieces. We pick the kit for the covering we find on the day, not the one in the brochure.
Many Irby bungalows have loft insulation that has been topped up several times, with the felt beneath the tiles left as it was in the 1960s. When a window goes into the slope, the underlay around it has to be cut, folded and sealed to the new frame, or the opening becomes a route for damp into the insulation. This is detail work, and it is where we spend the time.
Flat roofs here are mostly the covers over garages, porches and rear extensions. Where the roof has stood for years under westerly weather, we look at the upstand before we look at the rooflight. A tired felt or single-ply roof makes a poor base for a new rooflight, and we tell you at the survey so that one visit plans the whole job.
Reaching the roof is simpler here than in a terraced town. Drives are generous and bungalows are low, so a ladder or a short tower often reaches the roof without a scaffold licence. That does not change the care needed on the day, but it does keep the setup simple. Inside, a loft hatch and a clear route for the old tile and the new unit matter more than the pavement outside.
| Roof | Covering | What we watch |
|---|---|---|
| Hipped bungalow | Concrete interlocking tile | Tile profile and lap at the head |
| Dormer cheek | Felt or single-ply | Condition of the upstand |
| Inter-war semi | Plain or concrete tile | Rafter width and trimming |
| Village cottage | Clay tile or slate | Old timbers and a matched covering |
Wirral Council, Building Control and the paperwork for an Irby roof
Wirral Council decides planning matters in Irby. Most rooflight work on an ordinary house here is a planning question that can be answered before anyone picks up a tool. The permitted development rules, and the point where they stop, are in the planning answer for skylights, so they are not repeated here. The short version for an Irby owner is that a bungalow or semi with its own roof is the usual case, and a flat, a maisonette or a listed building is the exception.
The older buildings around the village centre need a closer look. If a house is listed, listed building consent is a separate application and has to come first. Historic England publishes the national list online, and Wirral Council can confirm whether a particular address is covered. Where the council has made an Article 4 direction for a conservation-area road, permitted development for roof changes is gone. A conservation area alone does not rule out a rooflight; a direction might. Checking whether your road is covered takes a few minutes. We do not name a protected street here unless we know it is protected, and we would rather you checked than took our word for it.
Before work starts at an Irby house, the building control team at Wirral Council is notified on your behalf, following the Building Regulations route for a rooflight. For an existing home, Part L caps heat loss at 1.4 W/m²K (or Window Energy Rating band B) for roof windows and 2.2 W/m²K for rooflights.
Loft conversions bring a second set of rules. In a bungalow's room in the roof, a roof window that meets the size and height limits in Approved Document B can serve as the means of escape. On a two-storey house it cannot, because the escape route there is a protected stair. We check this at the survey, since it changes which unit goes in and where.
- Survey Roof, loft and room are looked at together, the opening is measured and the covering is recorded.
- Written quote You get a fixed quote on paper, and nothing starts before you have agreed it.
- Notification Wirral Council, or the approver you choose, hears from us before work starts where the work needs it.
- Fitting The opening is framed, the unit is flashed and the room is left clean.
- Sign-off The certificate follows, and the workmanship guarantee runs for ten years in writing.
Irby roofs, rooms and rules in plain terms
Will a roof window fit the converted loft of an Irby bungalow?
The clear rear slope of a bungalow gives the loft room space for a roof window. We check the rafter spacing and what the dormer has already taken up, then choose the unit and size. If the room is meant to be a bedroom, the window may also have to work as the escape route under Approved Document B.
My Irby bungalow has a dark hall and bathroom. Is a rooflight the only answer?
A hall or bathroom that no window reaches suits a sun tunnel, which carries daylight down a short tube from the roof, across the loft, to a diffuser fixed into the ceiling. A roof window is better where the room sits directly under the slope and you want a view out.
Does the Irby page reach the Thingwall side?
It takes in the village centre and the roads around it, along with the estates, the bungalow streets and the edges that run towards Thingwall and Pensby. If your address sits near those boundaries, send us a message on WhatsApp and we will confirm.
Does the wind off the Dee estuary change which rooflight suits an Irby roof?
On west-facing slopes it does, because rain arrives with a lot of sideways movement behind it. The flashing kit is matched to the tile found on the day, and the lap at the head is set so wind-driven rain cannot be pushed up underneath.
Who signs off a finished rooflight in Irby?
The building control team at Wirral Council can, and so can a registered approver, as you choose. We pass the notification to them, and the closing paperwork comes to you from the same place.
Free survey
Get a fixed quote in Irby
- No obligation
- We survey the roof before we price
- WhatsApp or phone, whichever suits
What happens next: we arrange a survey at a time that suits you, measure the roof and the room, then send a fixed written quote. Nothing is booked until you say yes.