A green roof is in ecological terms a great and simple thing to do.
Flat green roof construction details.
Make a normal flat or sloped roof into a beautiful living garden.
The construction of the flat roof is similar to that of the timber upper floor.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
This will give additional stability to the roof structure.
To support lightweight sedum green roof construction your roof needs a loading capacity of at least 120 kg per square metre.
Regular intensive maintenance is required for this type of roof.
A green roof is a green space that is created by adding various layers of plants and a growing medium to the top portion of a traditional roofing system.
I liked the idea of having a bit more greenery in the property we live.
It replaces the ecology the new house sits upon thereby replacing the habitat that a house takes away.
Rigid slab insulation must be strong enough to withstand the additional loads.
In le corbusier s 5 points of architecture he advocates the inclusion of flat roofs hosting roof gardens providing valuable outdoor space for the inhabitants of the building in order to replace.
For a wildflower roof with a 150mm depth of the substrate work on loading capacity of 250kg per square metre.
Flat roofs are an easier option from a green roof construction point of view but living roofs are able to grow on pitched roofs too.
Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading.
Slopes and angles for green roofs the pitch of your roof determines how fast rainwater runs off it.
Note that it is not like a traditional roof garden in which planting is done in free standing containers as well as planters that are placed on an easy to access roof terrace.
While redeveloping our house we decided to install a living roof on our kitchen roof why you ask.
The majority of green roofs both intensive and extensive are build from the following elements.
Vapour control layer placed above the roof structure.
Build a living roof green roof.
This means you can consider a house green roof or growing a green roof on an extension or conservatory.
Unlike pitched green roofs flat green roofs can either take the form of extensive consisting of a thin layer of turf or sedum matting or intensive characterised by a greater soil depth that can even accommodate shrubs and trees.
For additional stability you can also use steel joists that are built into one or both of the walls.
