Weeds and other plant seeds are likely to be deposited on the roof by birds insects and the wind.
Low maintenance green roof.
For full value to the person and the planet he suggests extensive green roofs a substrate of less than 200 millimetres deep to ensure biodiversity and minimal maintenance.
Regardless of the plants selected a green roof still requires maintenance that a traditional roof does not.
Throughout north america there are many beautiful living roofs dotting our urban landscape that also require care.
Designing a green roof for low maintenance with the arrival of the spring and summer months comes the mission of maintaining our landscapes.
In the spring the gutters and drainage channels will be cleared any weeds removed and fertiliser applied.
Lightweight low maintenance extensive green roofs extensive green roofs are constructed using shallow depths of growing mediums known as substrates and vegetated with low maintenance plants.
That includes those that top our buildings green roofs.
Thus the roof should be weeded periodically to remove invasive species and to prolong the life of the plants and growing medium.
A sedum green roof can be maintained easily in two visits one in the spring and one in the autumn.