If you re looking for a lighter option to green roof enviromat green roof is lighter in weight than a wildflower roof.
Green roof weight.
The weight of a green roof caused the collapse of a large sports hall roof in hong kong in 2016.
Medium trees up to 10 m.
An interesting example of an intensive green roof is manaton the award winning private house on dartmoor that uses local meadow grass to blend the family home into the landscape.
The thickness of the drainage layer will depend on the roof structure and the water storage capacity required depending on the.
Substrate roll is a lightweight green roof substrate manufactured from long mineral wool fibres.
Roofs with vegetation blankets consisting of herbs grasses wild flowers or host and nectar plants require a thicker substrate layer than a vegetation blanket consisting of only sedum plants.
Intensive green roofs are essentially roof gardens and may also need to allow for the additional weight of paving and terracing furniture and even trees.
As such they don t require such deep soils or growing media.
Green roofs require significantly more maintenance and maintenance energy compared to a standard roof.
3 drainage including filterfleece 11 20 mm.
Small trees up to 6 m.
Green roof system weights columbia green technologies 79 se taylor st.
Perennials and low shrubs up to 1 5 m.
In the wake of the disaster numerous other green roofs around the territory were removed.
Shrubs up to 3 m.
Because green roofs require professional design careful structural analysis and multiple layers and systems even extensive green roofs usually start at 8 per square foot significantly more expensive than the 1 25 per square foot for built up roofs burs source.
Large trees up to 15 m.
Green roof system structure.
Weight loading kg m 2 low herbaceous succulents and grasses 10 2.
What contributes to green roof weight.
Green roof vegetation type.
The two key elements that contribute to weight are the density of the different layers that make up the green roof and how heavy it becomes as a result of rain absorption.
For example a traditional intensive green roof system for plants and grass featuring at least six layers including soil filter fleece drainage layer and vegetation is.
The initial expense of green rooftops often turns away prospective clients.