| |
Dwellings |
Buildings other than dwellings |
|---|
| Country |
Exit free area/minWidth/minHeight |
|
|---|
| England/Wales |
0.33m²/450mm/450mm |
|
|---|
| Scotland |
0.33m²/450mm/450mm |
|
|---|
| Northern Ireland |
0.33m²/450mm/450mm |
|
|---|
MEANS OF ESCAPE
If specified for emergency escape purposes the roof window must have an unobstructed opening of not less than 0.33m² with neither the width nor the height less than 450mm.
