Green Roofs

Question 1

What is a green roof

Answer 1

engineered roofing system that incorprate the use of vegetation

makes environmental, economic, social contributions to the urban areas

Question 2

What is the key motivation to implement green roofs?

Answer 2

Public benefits of storm water reduction, air and water quality improvements

Question 3

3 types of green roofs

Answer 3

extensive green roof
-> designed as an environmental sol’n

intensive green roof
-> rooftop gardens

semi intensive
-> blend of both extensive and intensive

Question 4

What are the characterisitcs of an Extensive Green Roof?

Answer 4

1) 3-6” lightweight growing medium
2) Low-maintenance ground cover plants
3) ideal for large flat roof buildings and apartments
4) suitable for low sloped residental roofs and retrofits
5) dessert, grasses, and succulent plants

After 1 year, they do not need watering
Annual spring weeding of trees and brought in by birds and winds

Like the one you saw in downtown

Question 5

Characteristics of Intensive Green Roof

Answer 5

8-12” > growing medium
Fully landscaped roof top garden
Require regular maintenance - similar to a at-ground garden
Diverse Plants and trees can be planted
avoid plants with INVASIVE root systems
Walkways railings and lighting
parks playground or vegetable gardens are around

On apartments roofs - what joekie does

Question 6

Semi Intensive roofs

Answer 6

combination of extensive and intensive

adopt to harness both environmental benefits + advantages of having a diverse garden with a manageable maintenance budget.