Extensive substrate is a lightweight growing medium for green roof planting schemes manufactured to fll guidelines.
Green roof growing medium weight.
The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2.
A green roof or living roof is a roof of a building that is covered with plants often wildflowers or grass and a growing medium planted.
The simple answer is that the weight of a green roof is determined by the strength of your build or structure so there are a few things to consider when creating your own green roof.
In general the bulk of the water storage in a green roof buildup is in the growing medium.
The extensive green roof lightweight cost effective and probably the most popular of the green roofs.
However the factors allowing for a lightweight roof can create a high stress environment for plant material.
Green roof system weights columbia green technologies 79 se taylor st.
Filter rainwater and buffer acid rain.
Effectively grow liveroof plants.
What is a green roof.
These generally require a 5 15cm 2 6in depth of growing medium that can consist mainly of lightweight inorganic materials such as perlite leca sand rockwool and crushed tiles or concrete.
Careful consideration and planning is required during the design phase of a green roof build and a local growth expert should be consulted in order to develop the best system for your needs.
Types of green roofs.
The venny green roof has shallow substrates on two types of roof the first roof is on shipping containers and is designed for a dead load of 250kg m 2 and live load of 100kg m 2.
Last for many decades.
Liveroof engineered green roof soil is designed to.
When saturated these layers can weigh in at more than 100kg per square metre or 20lbs per square foot.
Even a flat roof should have some pitch so that it sheds water toward gutters.
Green roofs are made up of several layers typically a waterproof root barrier layer to protect the roof a drainage layer water retention mat then the growing medium and vegetation.
Commonly referred to as growing media or soil substrates the growing medium used is an essential part of the green roof system.
Product datasheet saturated weight.
Conform to german fll granulometric standards.