Green Roof Build Up Thickness

Your green roof design will depend on the roof your preferred green roof system as well as your desired build up and vegetation.

Green roof build up thickness.

When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. 2 al40 edge trim frames and retains the xf301 system. They provide shade to the top of a building evapotranspiration. The green roof design needs to accommodate adequate water retention suitable drainage structural loading and the depth of green roof growing substrate.

The plants in a green roof absorb water through their roots and then use surrounding heat from the air to evaporate the water while some roofs can reach temperatures of up to 90 f in the summertime these two features can allow. Semi intensive green roofs as their name states are a combination of the aforementioned two types. 30 50mm high at despatch one established plants will reach a height of up to 120mm depending on. Others would treat even steeper pitches as flat roofs.

The weight of an intensive green roof system is critical for a particular type of plant and the minimum intensive green roof thickness should ranges from 150mm for a wild grassland 300mm for bushes and 3 meters in height and at least 400mm upper substrate and 250 mm lower substrate for small trees of approximately 10 meters. Sedum vegetation blanket instantly providing at least 90 coverage on an extensive green roof. A properly designed and installed extensive green roof system can cost 108 248 m 2 10 23 sq ft while an intensive green roof costs 355 2 368 m 2 33 220 sq ft however since most of the materials used to build the green roof can be salvaged it is estimated that the cost of replacing a green roof is generally one third of the initial installation costs. Flat roofing solutions bauder flat roofs.

The definition of a flat roof according to bs 6229 is having a pitch less than 10 o to the horizontal however some in the industry would consider up to 15 o as their definition of a flat roof. Thickness 20mm excluding vegetation vegetation will be approx. Extensive roofs are thin lightweight roof systems that typically have a planting media measuring 6 to 20 cm deep while heavier thicker green roofs are known as intensive roofs and their growing media ranges in thickness from 20 cm to 100 cm. Green roofs reduce the temperature of the building and the surrounding air in multiple ways.

40mm high perforated edge drainage trim for bauder sedum blanket. Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof.