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.
Sedum roof build up.
From the bottom upwards we have.
Once the skeleton of the structure was in place.
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.
It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.
The root system is the work force of the.
The system is suitable for both new build construction and retrofit refurbishment projects.
Xf301 sedum blanket extensive green roof system when to specify.
Above 35 special solutions can be designed by the zinco engineers.
Even a flat roof has a bit of a fall to allow for drainage.
This is the lightest weight all in one system available.
We added a slightly angled piece of marine plywood on to the top added.
Polyethene to protect waterproofing.
Having reviewed what the fll 2008 guidelines say about the construction of sedum roofs and others it is clear that a drainage layer is needed in cases where the pitch of the roof is very low or flat.
Draw your plan cut and bolt the pieces of timber together to fit and paint the structure with an additional protective.
The system build up sloped sedum based on the zinco georaster elements enables the installation of green roofs with slopes exceeding 20 and up to 35.
Most roofs have some sort of slope to them.
Low pitch or greater substrate depth this option may result in more grass than desired.