How much should the weather on high ground shape the window we choose?
Whitworth stands about 230 metres up. That is high ground in the Pennines, and exposure and wind-driven rain are fair things to think about here. A roof window is made to keep weather out when shut. The difficulty is the hours it is not shut, and those are the hours the household chooses.
Open and unattended
A window that is left open on a sunny morning and then caught by a shower is one way a loft room gets wet. A manual window stays as left. Some makers offer a restrictor that holds it a little open so that wind does not swing the sash wide, which is useful in a bedroom. For a room that is empty all day, an electric or solar window with a rain sensor can close itself. VELUX offers sensors on some electric and solar models, and we check whether the one you want has it. Our page on how rain sensors behave goes through the limits.
Hot days as well
High ground has bright days too, and a loft room under a big pane warms up. A blind on the window helps, and solar control glass can be added to the specification. Neither is a reason to avoid a rooflight. Both are reasons to choose with the blind in mind, and to ask about the glass at the survey. Our page on solar control glass for roof windows sets out what the coating does.
In a gust
A window that opens outward and upward catches wind. In an open spot it is worth asking how far the sash opens. We go through this with each maker's product. We do not promise how a window will cope with a particular storm.
Afterwards
Weather also leaves marks on the glass. Rain on a sloping pane leaves streaks, so how you will clean the outside matters from the start.
Dealing with weather, by window type
- Manual
- You close it; a restrictor limits the swing
- Electric
- Closes from a remote or a wall switch
- Solar
- As electric, with no cable
- Rain-sensing
- On some VELUX models; closes the sash itself





