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Pros

 

  • Green roofs absorb heat and act as insulators for buildings, reducing energy needed to provide cooling and heating.

 

  • By lowering air conditioning demand, green roofs can decrease the production of associated air pollution and greenhouse gas emissions.

 

  • Vegetation can remove air pollutants and greenhouse gas emissions through dry deposition, carbon sequestration and storage.

 

  • Rooftop gardens improve human health and comfort by reducing heat transfer through the building roof and lower heat stress associated with heat waves.

 

  • They can reduce and slow stormwater runoff in the urban environment and also filter pollutants from rainfall.

 

  • Green roofs can provide aesthetic value and provide homes for many species.

“Make Yourself at Home!"
 
Villa Aphrodite is owned
maintained by Marcus Apadakis

Cons

  • The structure and weight of a roof garden can cause problems for the overall building. 

 

  • Soil and planting pots are both heavy whether you create a soil planting bed in your roof garden or use pots, you are significantly adding to the weight placed on the roof structure.  

 

  • Patio slabs and furniture add even more weight on the roof.  Most building roofs will require proper reinforcement before a roof garden can be grown safely.

 

  • High roof gardens may suffer problems with high winds damaging plants and young seedlings.

 

  • A roof garden places a heavy strain on a building's water supply.

 

  • If no water outlet is available on the roof, you will have to either install water in the roof garden or carry water from inside the building.   A traditional land garden can drain freely, but a roof garden will require an expensive drainage system.  

 

  • If a building has a roof garden insurance companies will charge a higher premium than they would to cover the same building without a roof garden.  

 

  • Roof gardens may be more dangerous than typical gardens because there is a risk of falling.

© 2015 by The Apple Cores: Where the Food Begins

Produced by Briony, Hayden, Jake, Oceania, Tate

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