Shade Score: how much sun will your new living space take?
Big glass makes a room. Garden doors, a roof lantern, a gable full of light. It can also make the same room too hot to sit in on a July afternoon, and that is expensive to fix once the glass is in.
Shade Score is a quick, illustrative check for one open-plan living space. Enter the room, each glazed wall and any roof glazing, and it gives you a score from 0 to 100. A higher score means lower modelled solar exposure. Then try shading routes, from roof overhangs and external blinds to window film and planting, and watch the score change.
What it is for
- Starting the shading conversation early, while the glazing can still change.
- Comparing routes side by side.
- Giving an architect and a client the same picture to talk around.
What it is not
- Not a room-temperature prediction, a Part O overheating assessment or a product approval.
- The Part L check is a preliminary glazing-area comparison for extensions in England, not a compliance assessment.
What to do with your score
Share your plans or the summary with WindowTreat. We will look at the main exposure and your priorities, suggest a small number of suitable routes with their trade-offs, and agree who does what next and when you will hear back.
