Schedule of permanent loads commonly found in residential properties.
Green roof loadings uk.
In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing.
The use of reliable and established products that comply with green roofing guidelines is important.
Green roofs may also include additional layers such as a root barrier and drainage and irrigation systems.
The long term performance of green roofs depends on many factors.
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Extensive green roofs are designed to reap the benefit that green roofs offer at minimal cost and with very little maintenance.
Plants need a growing medium in order to survive and so you must consider how much a green roof weighs before starting to build it.
The growing medium is heavy especially when it s wet.
On the pages below we show a summary of our product range.
The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2.
Types of green roofs.
We can provide more information on individual products or systems on request.
Roofs are under a lot of pressure.
How many substrates can your roof support.
Weights and loadings for green roofs.
Here s a summary of the different types of green roof available.
Standard loads of materials.
Pitched roof measured on slope clay tiles plain.
The soft landscaping on a green roof will retain a large percentage of the average annual rainfall as for example an intensive green roof can retain up to 90.
Flat roofing solutions bauder flat roofs.
Bearing in mind that you also need to factor in live loading.
However the uk s national annex to bs en 12056 does not permit the use of a coefficient to factor down the drainage infrastructure to take account for factors such as the retention.
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.