Skylights and rooflights in Cullompton

Rooflight installation for Cullompton's cloth-town terraces, Culm valley cottages and newer estates, with the ceiling made good around every opening.

A roof window in a sloping attic ceiling, with neighbouring slate roofs beyond

Cullompton at a glance

Homes you'll find
Georgian and Victorian frontages on the main street, cob and stone cottages in the older lanes, estates around the edges
Roofs
Slate with a little plain clay tile around Fore Street, concrete interlocking tile across the estates, single-ply or GRP on flat extension roofs
Planning
Mid Devon is the planning authority, and the heart of town is conservation area with several listed buildings
Exposure
Low in the Culm valley, with damp air by the river and sharper wind on the higher edges of town

What cob walls and damp Culm air demand from a Cullompton rooflight

  • Lime on cob

    Thick cob walls and lime plaster inside the lane cottages mean the lining edge wants soft lime plaster, not a hard gypsum finish.

  • Trussed estate roofs

    Many newer houses have trussed roofs, where the trusses fix the opening width and any cutting needs an engineer's detail.

  • Damp valley air

    Condensation shows early on a cold lining in the Culm valley, so the insulation and vapour control layer are detailed with care.

  • Narrow centre streets

    Access in the town centre is limited, so unloading and scaffold positions are worked out at the survey.

The finishing notes

Rooflights in Cullompton

Brightview puts rooflights, lanterns and roof windows into Cullompton houses, and swaps old ones for new, from the cloth-town houses along Fore Street to the newer estates that have spread across the edges of the town. Cullompton sits in the valley of the River Culm, about fourteen miles north east of Exeter, close to junction 28 of the M5. Planning here is a matter for Mid Devon District Council, and a rooflight is a different job depending on which part of town the house stands in.

The ceiling is where that difference shows, and it is the reason a rooflight installation in Cullompton is never one job repeated. A Victorian terrace, a cob cottage and a 1990s estate house all need a different lining to meet the plaster around the opening. Each quote carries a room-by-room schedule that fixes the shape of the shaft, the plaster and where the paint stops, settled before anyone climbs onto the roof.

01The houses

Wool, tanning and terraces: the houses of Cullompton

A cloth and market town: main-street frontages, cob cottages in the lanes and estates on the edges.

Cullompton grew as a market and cloth town. Wool and then the trades that followed it left a long main street of Georgian and Victorian frontages, some of them rendered, some brick, many with narrow plots running back behind them. Alleys and yards open off Fore Street, and the buildings at the back are often older and lower than the fronts, with a run of lean-tos and later additions.

Around the centre you find Victorian terraces and villas, a good deal of cob and stone cottage building in the older lanes, and farmhouses that the town has grown up against. The Culm valley is cob country, and walls here are thick, with lime plaster inside and rafters that have settled over time.

Where the homes are
Fore Street
Georgian and Victorian frontages, narrow plots behind
Older lanes
Cob and stone cottages with lime plaster
Around the centre
Victorian terraces, villas and postwar housing
Edges of town
Recent estates under concrete tile

That spread, from cob to cul-de-sac, is why we ask early which street you are on.

Beyond that, Cullompton is a place that has been growing. Postwar housing, estates from the later twentieth century and recent developments have all been added around the old core, and more building is planned on the edges of the town. These are brick or render houses, tiled in concrete, with plasterboard below and modern roof structures above.

Many of the older buildings have also had work done over the decades: a dormer in one era, a flat-roofed kitchen in another, a conversion of an outbuilding into a workroom. Each addition changes the roof underneath, and the survey reads those layers before a design is drawn.

That spread, from cob to cul-de-sac, is why we ask early which street you are on. It tells us more about the roof and the ceiling than almost anything else.

Next note: Slate, plain tile and concrete: what is on the roofs here

02The roofs

Slate, plain tile and concrete: what is on the roofs here

Slate on bowed rafters in the old town, concrete tile and trusses on the estates.

In the old town the covering is mostly natural slate, with some plain clay tile and the occasional thatched cottage on the outskirts. Roofs of that age are rarely flat or true. Rafters have bowed, spacing varies, and the roof build can be deep because earlier owners added insulation and boarding below the slates over the years.

Fitting a roof window into slate means lifting the slates around the opening, setting them aside, and building the flashing back in. Slate thickness decides which flashing suits: thin slate needs a different kit from thick, and profiled concrete tile needs another again. Where an old slate roof has a few cracked slates around the opening, we say so at the survey rather than bedding a new frame into tired cover.

GlassSplayed lining, wider at the ceiling
  • Natural slate
  • Battens and underlay
  • Rafters, trimmed around the opening
  • Lime plaster ceiling
An old Cullompton roof, top to bottom

On the estates, concrete interlocking tile is the usual covering, and a standard roof window with its tile flashing is an easy fit. The roof is trussed rather than rafted in many of these houses, which means the trusses set the width of the opening and the sizes that work, and any cutting of a truss needs an engineer's detail before we start. Rear extensions and garages often have flat roofs, in felt on the older ones and a single-ply or GRP membrane on newer builds, and those are the roofs that take flat rooflights, or lanterns sitting on upstands.

A few Cullompton houses are thatched, mostly out towards the villages. Thatch calls for a kerb made to measure and the straw dressed round it, which is worked out with a thatcher before anything is ordered.

Next note: Cullompton and Mid Devon District Council: planning in the town

03Planning

Cullompton and Mid Devon District Council: planning in the town

Mid Devon District Council is the planning authority, the old centre lies in a conservation area, and consent is needed for listed houses.

For a house in Cullompton, planning sits with Mid Devon District Council. Most houses can take a rooflight without applying, as the general permitted-development limits on projection and height cover the usual case.

The centre of Cullompton has a conservation area, and the town has a number of listed buildings, among them the parish church of St Andrew, which is famous for its carved and painted Lane Aisle. The conservation area does not switch Class C off by itself, though an Article 4 direction may. A short check with Mid Devon's planning team before you settle on a product saves a redesign later.

Planning in Cullompton
Planning authority
Mid Devon District Council
Town centre
Conservation area, check Article 4
Listed houses
Listed building consent for external changes
Flats and maisonettes
Planning permission needed

A listed house is different: external changes need listed building consent

A listed house is different: external changes need listed building consent, and cutting into its roof structure or ceiling falls under that consent. Flats and maisonettes, including the ones above shops along the main street, sit outside householder rights, so a rooflight there calls for planning permission.

You can read the wider rules in our planning and Building Regulations guide. On the building side, cutting a new opening is building work, and so is replacing frame and glass as one unit. Building Control hear about both from us.

Next note: The Culm valley: exposure, damp and the motorway

A roof window in a sloping attic ceiling, with neighbouring slate roofs beyond
04The valley

The Culm valley: exposure, damp and the motorway

The Culm holds damp air low in town, so the lining and its insulation matter.

Cullompton lies low, in a valley with the Culm running close by, and the high ground of the Blackdown Hills rises to the east. It is not a coastal or moorland exposure, but the valley does hold damp air on still autumn mornings, and the houses nearest the river and the water meadows feel it.

That matters for the ceiling more than for the roof. Damp air means condensation shows early on any cold surface, and a lining backed by a skimpy layer of insulation stays cold. The answer is a well-insulated lining, a vapour barrier carried right up to the frame, and double glazing set on a warm-edge spacer, which keeps the rim of the pane warmer than the older aluminium spacers did.

Specified for the valley
  • Insulated lining behind the plaster
  • Vapour barrier lapped up onto the frame
  • Warm-edge spacer in the glass
  • Flashing kit chosen for the pitch
  • Rain sensor on top-floor opening rooflights

Weather arrives from the south west up the valley and can be sharp on a south-facing slope. On the high side of town, towards the edges, a roof window takes more wind, and the flashing kit and fixings are chosen for the pitch rather than just the tile. Opening rooflights on a top floor are worth considering with a rain sensor, so a shower that comes up the valley closes them for you.

The M5 is a fact of life on the east side of town, and the noise is something people ask about. If you are choosing glazing for a bedroom there, acoustic glass is available as an option, and we can add it to the specification.

Next note: Roof windows, lanterns and conservation units for Cullompton houses

05The right product

Roof windows, lanterns and conservation units for Cullompton houses

A roof window on a terrace, a conservation rooflight on a cottage, a lantern on the extension.

Which product earns the nod is down to the house and the room, and across Cullompton the choices fall roughly as follows.

Victorian terraces and Georgian frontages with loft rooms usually want a roof window at the back of the roof, fitted between the rafters with a splayed lining wherever the build is deep. Cob and stone cottages are better served by a small conservation rooflight set low in the slate, with lime plaster inside.

Cob cottage in the old lanes

Usual product
Small conservation rooflight
Roof covering
Natural slate
Roof structure
Hand-cut rafters
Lining finish
Lime plaster

Estate house on the edge of town

Usual product
Standard roof window
Roof covering
Concrete interlocking tile
Roof structure
Trusses
Lining finish
Plasterboard, taped or skimmed

At the back of the house, a roof lantern over the kitchen table, or a low flat panel of glass on its own upstand, suits a rear extension, with the kerb lined and plastered below. Estate houses and loft conversions take a standard roof window. Where the glass in an old window has misted, misted and failed rooflight replacement keeps the opening and fits a better-insulated unit in it.

VELUX is the name most people know for roof windows, and we fit it. The main choice is how the sash opens: a centre-pivot window swings on a hinge halfway up and is easy to clean from inside, while a top-hung one opens outwards from the head and leaves more headroom at the sill of a low loft room. Frames are white-painted pine or white polyurethane, and polyurethane suits a bathroom or kitchen where steam is a factor. The size follows the rafter spacing and the room, and we confirm it at the survey.

Whichever you choose, it meets the Building Regulations in force, including the Part L heat-loss limits for new and replacement glazing. Our VELUX window installation page covers the range in more detail.

Next note: Cob, lime and plasterboard: finishing the ceiling in Cullompton

06The ceiling

Cob, lime and plasterboard: finishing the ceiling in Cullompton

Lime on cob, lath under old terraces, plasterboard on the estates: how the edge is made good.

Step inside an older Cullompton house and the ceiling tells you what you are dealing with. Cottages and older terraces often have lath and lime plaster, sometimes with a skim of gypsum added at some point. The cob walls below are thick, and lime is what suits them, because it lets the wall breathe.

A lath and plaster ceiling is held up on props beneath it before any cutting starts. We score the plaster and cut it clean, trim each lath back to a timber so its end is held, and secure any loose plaster at the edge, all before the frame is lowered in. The lining comes next. In an old house with a deep roof build, a straight shaft wastes the glass and looks like a hatch, so we splay the sides, opening them out towards the ceiling.

  1. Prop the ceilingCeiling propped underneath before cutting starts
  2. Cut cleanlyPlaster scored, each lath trimmed to land on a timber
  3. Form the liningSides splayed out where the roof build is deep
  4. Finish the edgeLime or taped plasterboard to match

A lime ceiling gets a lime edge, built up in thin layers and blended into the old surface before a breathable paint goes on. Hard gypsum against soft lime splits at the join, so it stays out of those rooms. On the estates the lining is plasterboard, jointed and skimmed to match, and we leave it painted or ready for you to paint.

Your room's schedule holds every one of these decisions, together with the roof build and the trim. The finish schedule page shows the format, and our walk-through of finishing a rooflight indoors covers the stages.

Next note: A visit to Cullompton before we quote

07The survey

A visit to Cullompton before we quote

Roof, loft and room surveyed, access sorted out, and the quote written up with the finishes listed.

Cullompton is an easy run up the M5 or the old main road from Exeter, so a visit is simple to arrange. We start on the outside, looking over the roof. Indoors we measure the gap from roof to ceiling, work out what the plaster is on, and look for anything that could affect the result, such as a crack heading for the opening or a boxed-in beam.

In the town centre the streets are narrow and parking is limited, so part of the survey is deciding where materials can be dropped and where a scaffold or tower would stand. A scaffold that takes up the pavement or road requires a permit from the county, which is the highway authority, and we build that wait into the programme. On the estates, access is usually simpler, but we still check how a roof window will get from the drive to the landing.

The quote arrives in writing, with the room's finish choices set out, and is agreed before work begins. Dust is kept under control, the room is left spotless, and our 10-year workmanship guarantee covers what we install.

Neighbouring Willand and Bradninch are on our rounds too, within the thirty miles around Exeter shown on the areas page. With such a mix of cob, brick and cul-de-sac, it helps to see the roof first, so use the quote form, or email info@brightviewskylightsexeter.co.uk with the street name and a photo. The homepage covers the full service.

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