We have a fully grown tree... it's about 4-5 stories high, and 23 years old.
Apartment Therapy San Francisco | How To: Grow an Avocado Tree
|6/12/08 6:51 PM|
I guess structural problems are a different matter, but problems caused by water filtration and such are preempted by the protection between the actual soil and the roof. They install a whole lot of layers, including a water-proof one, and another one that is designed to drain away excess water from the soil.
Apartment Therapy New York | PlantTherapy: Practical Talk on Green Roofs
|3/29/08 11:26 AM|