Skylights and rooflights in Witheridge

The village grew around its square, and the oldest buildings are the sort you expect in this part of Devon: cob walls on stone footings, rendered and whitewashed, with small windows and low ceilings upstairs. Some cottages are thatched. Others were re-roofed in slate when the railway era made Welsh slate cheap to bring in, which is why a village roofline here is a mix of the two.

Out in the surrounding countryside the building stock changes. Farmhouses are bigger, with high ceilings downstairs and attic rooms under the roof, and the farms have outbuildings that have been turned into homes: stone and cob barns, cart sheds and cattle shelters with deep roofs and big, open spans. Along the village edges, twentieth century housing fills in the gaps, from former council semis to detached houses built in brick or render.

A barn conversion, a cob cottage and a 1970s semi share a postcode and almost nothing else as far as a roof is concerned.

A barn conversion, a cob cottage and a 1970s semi share a postcode and almost nothing else as far as a roof is concerned. The survey starts with working out which of them yours is closest to.

Most houses in Witheridge are free to add a rooflight with no application, provided the general permitted-development limits are respected. They cover how far the unit may stand above the roof and what applies to sideways glazing, and the detail sits in the countywide rules page.

Farm and barn conversions bring their own wrinkle. Where a barn has been converted under a planning permission, the original consent may have removed permitted development rights by condition, so the decision notice is worth finding before you settle on a layout.

Anything listed has to have consent before its exterior changes, and cutting into a historic roof structure is part of what that consent covers.

The exceptions are the ones that matter in a village with this much age. Anything listed has to have consent before its exterior changes, and cutting into a historic roof structure is part of what that consent covers. If any part of the village is a conservation area, the usual allowance may survive, though an Article 4 direction could take it away, and a flat or maisonette has to apply, because the householder allowance does not extend to it. Ask Mid Devon District Council to confirm what applies to your address before a design is fixed.

Witheridge lies outside both Dartmoor and Exmoor, so the national park rules do not apply. The conservation rooflights page explains the low-profile units that suit older buildings.

Timber condition decides a good deal. In an old farmhouse or barn the rafters may carry decades of woodworm flight holes or damp staining near a failed gutter, and a survey looks at them before any opening is drawn. Sound old oak is a pleasure to work with and will hold a doubled trimmer well. Where the timber is softwood added at a later date, we check the joints and the bearings, because a trimmed opening puts extra load on the rafters either side. Rotten ends are a reason to rethink the position, and the frame is moved to where the structure is good.

Building and product tend to pair up in familiar ways across this housing, though each roof still gets its own answer.

Barn conversions

A wide roof window or a row of them, or a long conservation-style rooflight, set between the main timbers.

Cob and thatched cottages

A small rooflight on a slate or tiled slope, or a sun tunnel where the thatch must stay untouched.

Farmhouses with attic rooms

A pair of roof windows, with the lining splayed to take the thickness of an old roof.

Kitchen extensions

A roof lantern on a kerb, lined and plastered below.

High ceilings

An electric opening rooflight with a rain sensor, where a pole would be awkward to use.

Replacing an old unit is no different here from anywhere else. A whole rooflight, frame and glass, has to meet Part L and be notified to Building Control, which we handle. Changing only a misted sealed glass unit in a sound frame is not notifiable.

Light and heat behave differently under a deep roof. A converted barn often has a tall, dark upper floor with a few small windows punched through thick walls, and a pair of roof windows can change it completely. The same volume, though, collects warm air in summer. An opening unit placed high in the slope lets that air out, and it can count towards purge ventilation under Part F. A cottage bedroom under thatch has the opposite worry, because it stays cool and the question is how to get light in without losing the insulation the thatch provides.

Witheridge is further out than most of our work, so we plan the visit rather than squeeze it in. The route runs from Exeter through Crediton or Tiverton and up onto the high ground, and we combine surveys in the area where we can, so a visit to Witheridge can be paired with others nearby, such as Tiverton and Crediton.

At the survey we look at the roof from outside, then go into the loft and the room below to measure the depth from roof to ceiling, check the timbers and the ceiling material, and note anything that affects the finish, from a beam to an old crack. Weather matters to the booking as well, since an opened roof on a high ridge needs a settled forecast and a plan for covering it overnight. Farm tracks and unmade lanes are part of the landscape here, so we ask about the way in, where the unit can be unloaded, and how close a vehicle can get to the house.

Back from the survey, we price the job on paper around what the roof, the timbers and the ceiling turned out to be, and you agree it before any work begins. Dust is controlled, the room is cleaned and a 10-year workmanship guarantee covers the installation. A barn conversion on a farm track and a cottage on the square will want different arrangements, and the easiest way to start is the quote form, with WhatsApp and info@brightviewskylightsexeter.co.uk as alternatives. The skylight and rooflight installation homepage describes the whole service, and the areas we cover page shows the rest of the map.