Lightweight Green Roof Construction

Slopes and angles for green roofs.

Lightweight green roof construction.

A green roof is in ecological terms a great and simple thing to do. The thickness of the drainage layer will depend on the roof structure and the water storage capacity required depending on the. To support lightweight sedum green roof construction your roof needs a loading capacity of at least 120 kg per square metre. Xf301 sedum standard is an extensive green roof system ideal for retrofits and new builds.

The vegetation mat is grown locally outdoors harvested like sod and rolled out on top of baselayers. This means you can consider a house green roof or growing a green roof on an extension or conservatory. Substrate roll is a lightweight green roof substrate manufactured from long mineral wool fibres. These roofs possess low weight holding capacity so we need to design a lightweight green roof construction.

07 72 73 vegetated roof systems. Sedum vegetation blanket instantly providing at least 90 coverage on an extensive green roof. 1 xf301 sedum blanket system with integrated water retention and filter layer. 2 al40 edge trim frames and retains the xf301 system.

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. Used over a whole roof a green roof will be the single overriding design influence on the house as well as impacting on the construction right down to the foundations. This type of lightweight extensive green roof can be landscaped on any kind of roof regardless the construction materials used. However in the 1960 s rising concerns about the degraded quality of the urban environment and the rapid decline of green space in urban areas renewed interest in green roofs as a green solution was sparked in germany and switzerland new technical research was carried out ranging from studies on root repelling agents membranes drainage lightweight growing media to plant suitability.

By planting vegetation on the roof of a building energy consumption is reduced rainwater is absorbed and then evaporated back into the atmosphere substantially reducing the volume going into storm sewers. Green roof construction has become extremely popular and is now a requirement in certain areas of the country in both dense residential and commercial construction. Here the thermal insulation is installed directly above the waterproofing layer. It replaces the ecology the new house sits upon thereby replacing the habitat that a house takes away.

This loose laid system uses a low maintenance pre vegetated sedum mat that includes up to 10 species of plants. 40mm high perforated edge drainage trim for bauder sedum blanket. 3 drainage including filterfleece 11 20 mm. The cooling effect of these cold roofs is maintained with the help of specific layer construction.

For a wildflower roof with a 150mm depth of the substrate work on loading capacity of 250kg per square metre.