Intensive roofs, or roof gardens, are the perfect example of this. Some even have bushes and trees. The irrigation needs of a green roof are specific not only to plant selection, but also to the ...

Semi-intensive green roof: This boasts a mix of both intensive and extensive green roofs. It is characterised by a growing medium depth of around 6 to 12 inches to host a much richer ecology.

Under construction on the roof of an old typewriter-ribbon factory, this 21,000-square-foot space will showcase various green-roof systems, from thin, extensive plantings to intensive roof gardens ...

The second intensive rooftop garden, located on the roof of City Hall, did have lower temperatures than the surrounding area, but the temperatures did show a rising trend at the end of the study.

These new green roof buildings help us do that.” ... Columbia Green Technologies offers innovative green roof solutions for extensive, semi-intensive and intensive roof gardens.

The intensive roof reaches a height of between 25cm and 100cm. Shrubs and trees find room for their roots here, so it is a kind of roof garden that requires a higher structure and also more effort ...