Jennifer bousselot ph d.
Green roof sedums.
They were friendly professional and delivered a quality product.
The simplest most affordable and lowest maintenance green roofs comprise a carpet of sedums.
The same varieties which are found as far north as sweden and as far south as spain.
Roughly speaking extensive green roofs have a substrate thickness of between 4 and 15 cm and a weight of 30 to 220 kilo per m2.
Sedums are one of the star plants for creating a green roof and a sedum roof needs no extra growing medium.
Sedum species are grown on rolls of special geo textile matting.
There are about 400 species of sedums with a wonderful variety of colors shapes growth rates flowering season and evapotranspiration rates.
As well as affording excellent ground cover this hardy easy to maintain plant grows happily in a shallow layer of substrate minimising the amount of pressure it puts on a structure.
Green roofs or sedum roofs are growing in popularity throughout the uk and globally partly due to the growing environmental concerns and focus on minimising the impact on the environment.
A roof is a hostile environment compared to life on the ground.
Over five years later the roof still looks great.
Green roof sedum have to be tough reliable and resilient to withstand the challenging conditions on a roof top.
An extensive green roof or sedum roof is a roof with vegetation that is more or less self perpetuating and that can further develop and maintain itself.
The soft stuff doesn t do up here so we use only the hardy varieties.
These incredibly tough succulents are both drought and deluge resistant and their blooms are much loved by butterflies and bees.
These varieties and species of sedum are grown extensively for use on green roofs mainly because of their hardiness and drought tolerance.
The lightest and simplest form of green roof can be purchased ready grown.
How to make an extensive roof garden.
Slopes greater than 30 degrees are generally unsuitable for green roofs.
9 varieties of sedum perfectly blended to create the world s hardest wearing sedum blanket.
Why use a sedum green roof.
A root barrier such as heavy duty polythene or a pond liner should be laid on top of the existing roof.
It has been a pleasure to get to know and work with teresa and roxanne at roof top sedums on a green roof project at iowa state university.
