Plant Connection, Long Island NY, Green Roofs: Extensive vs. Intensive

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Green Roofs: Extensive vs. Intensive

What is an intensive green roof? How is it different from an extensive green roof?

There are two main types of green roof systems in common use.


Extensive Green Roof

  • Soil depth 3-6 inches
  • Lightweight: 15-50 lbs/sq. ft.
  • Only 10 -20% organic matter in soil
  • Limited plant species options
  • Lower maintenance, nutrient, and irrigation requirements

Intensive Green Roof:

  • Soil depth 6 inches or more
  • Heavier weight load on roof: up to 150 lbs/sq. ft.
  • Many more plant options including trees and shrubs
  • Require irrigation, fertilization, and maintenance

Riverhead, NY Phone: 1-888-78PLANT Fax: 631-722-8787

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