greenroof
nounUK /ˈɡriːn.ruːf/
US /ˈɡriːn.ruːf/
A greenroof is a roof with plants growing on it.
The building has a greenroof covered with grass and flowers.
OTHER MEANINGS
2. A roof covered with soil and vegetation for environmental benefits.
The city encourages greenroofs to reduce heat in summer.
3. A rooftop garden used for growing food or flowers.
They grow tomatoes on their greenroof.
4. A building feature that helps save energy by adding insulation.
A greenroof can keep a house cooler in hot weather.