Calculating the average cost of green roofs can be difficult because there a number of variables not just the size and accessibility of the site but the types of plants that are going to be grown on it.
Green roof plug systems costs.
The plugs grow in a substrate especially developed by sempergreen and are cultivated in 72 hole trays.
The cost of green roofs how much do green roofs cost.
As an estimate in the uk the average cost per square meter of extensive green roof system is 50 100 whereas an intensive green roof system is 60 150.
Use sempergreen sedum plugs to give an existing green roof a specific colour.
A green roof system can still be installed on non efvm compatible roofs however certain precautions may need to be taken to either add a protective surface root barrier to the roof membrane before installation or the overall warranty cost may need to be increased to cover the manual leak detection process on non efvm compatible roofs.
At a net zero home in san francisco the house s green roof is more of a brown roof.
A desert like array of native and non native succulents that require minimal irrigation.
Plug plants can be inserted into extensive roof garden substrate.
Finally there is also ongoing costs to consider for maintenance and repairs.
Over its lifetime though the green roof would save about 200 000.
Getting the materials onto the roof.
Labor costs to install a green roof.
The lite system is typically used on retrofit projects when the roof is engineered with only 15 to 17 pounds per sf for the green roof component.
Its soil depth is a full 2 inches enough to support many low growing succulents and a limited number of accent plants.
A large scale green roof on top of an exclusive new york condo might cost hundreds of thousands of dollars whereas the small garden you.
Labor makes up a significant portion of the cost of a green roof mostly because the process of creating one can be labor intensive.
As a guide prices can vary from 50 m for a sedum roof to 200 m for a fully planted intensive roof the cost of any reinforcement needed to the roof and or wall structures is additional to this.
The cost will vary with the green roof system and the particular situation.
Because green roofs extend the lifetime of a roof between 200 and 300 percent owners are able to save significant costs in the long run.