Bungalows with rooms in the roof
When a Stoke Gifford bungalow gains rooms under its rafters, the window there has two duties. It airs the room, and it may double as the way out for that room. Both the glass size and how high the sill stands above the floor come into it, and we take those readings at the survey before proposing a unit. The rules are walked through on our fire escape page for roof windows. Houses of two full storeys are a different case. Converting the loft of one calls for a protected stair, so up there the window is only about daylight and air.
If you want the full range of sashes, sizes and openings for a loft like this, the roof windows hub covers it. If you already have an old window in the slope that has misted between the panes or no longer closes, the glass or the whole unit can be swapped, and what that involves is set out on our page for misted and failed rooflights.
It helps to think about the room as it is used. A loft bedroom wants air at night, so a vent bar and a sash that stays open a few centimetres suit it. A study wants glare kept off the screen, so the window sits to one side of the desk and carries a blind. A playroom wants an opening that small children cannot swing wide, which is where a restrictor or a high handle comes in. The same roof can end up with three different windows for those three jobs, chosen at the survey rather than from a catalogue.
Landings and bathrooms with no outside wall
Many of these houses have an inner bathroom or a landing that gets no daylight at all. Nothing on the ground floor can fix that, but a short run up through the roof can. A sun tunnel sends daylight down a tube to a ceiling diffuser. Add the vent and it can also take a gentle flow of air out of a steamy room, quietly, while the fan is off.
Roof windows are a familiar sight on streets like these and rarely draw comment from neighbours. A neat line of two across a rear slope looks planned rather than added. If you are unsure whether yours needs consent, our planning guide explains the general position, and South Gloucestershire Council can confirm for your street.