Green Roofs

Green Roofs

Green roofs, or roof gardens, are a layer of vegetation that sits atop a building's roof. They usually include a waterproofing layer, a root barrier, a growing medium and a drainage system that acts as an extension of the existing roof. They can also include an irrigation system, depending on the types of plants used. In addition to providing aesthetic appeal, green roofs can also add a lot of functionality to a roof.


They can;

  • provide thermal insulation to a home or office building
  • retain storm-water that would otherwise add to the city's waste-water management system
  • attract wildlife
  • decrease the amount of heat radiated back into a neighborhood (think cool field of grass versus hot asphalt)
Root Barrier is put in place above the waterproofing membrane.

Root Barrier is put in place above the waterproofing membrane.

Steel mesh is attached to the perimeter of the roof to hold roof garden build up.

Steel mesh is attached to the perimeter of the roof to hold roof garden build up.

Gravel is placed on top of the root barrier for drainage and filter fabric is placed on top of gravel to keep it free from soil.

Gravel is placed on top of the root barrier for drainage and filter fabric is placed on top of gravel to keep it free from soil.

A lightweight soil is placed over the filter fabric.

A lightweight soil is placed over the filter fabric.

Plants with suitable root requirements are then planted.

Plants with suitable root requirements are then planted.

Finished Product

Finished Product