For these roofs, a slim unit that sits flush with the slates suits the character of the building. A conservation rooflight has a thin frame and a central bar, and plenty of them open on a handle or a pole. Where a cottage is listed, nothing can go on the roof until North Somerset Council grants listed building consent. Parts of the older village may also lie in a conservation area, and it is worth asking the council before you decide on any slope that looks onto the lane. The planning page explains what applies where.
Inside, old roofs are not tidy. A cottage rafter can be thicker, closer or more crooked than you would expect, and the board behind it may have been replaced in different decades. Before suggesting a size we climb into the loft and read the timbers, and if two small windows would suit them better than one large one, we say so.
The damp air of low ground
Congresbury sits close to land that was once marsh, and the air here can be heavy on still mornings. That makes ventilation in the roof matter. A small window that opens a few centimetres at the top lets stale air go without a draught on the bed below, and a room that is aired regularly feels fresher through the winter. Opening a rooflight helps moist air leave a bathroom, and in a cottage with only one outside wall to a room it may be the only way to get a cross-flow at all.
A cottage loft converted to a bedroom needs more than a window. The ceiling height, the stair and the way out in a fire all depend on the house, and the rules differ between a bungalow and a two-storey building. We check these points at the visit, and our guide to roof windows sets out the basics. Swapping a whole old window for a new one brings Building Control into it, and we handle that paperwork as part of the job.
Many cottages in a village like this have been extended over the years, and the roof often shows it: a main ridge, a lower rear range, perhaps a porch roof or a lean-to over the back door. Each of those roofs is a chance to fit something suited to it. A small opening rooflight in a lean-to can turn a dark utility room into a bright, airy one, while the main roof keeps its traditional covering and only gets a window where it is truly needed. We like to start from the room and work out which part of the roof serves it best, not from a window we want to sell.
The rear slope of a cottage is usually where the opening unit belongs. It faces the garden rather than the lane, it is sheltered by the building itself, and it keeps the front of the house looking as it always has.