Structural System Of Green Roof Building

0 x insulation i had to put in some thermal insulation because our council building control couldn t calculate the u value for insulation of the living roof after installing it.

Structural system of green roof building.

1 x roof it d be a normal garden if it wasnt on the roof. A roof base assembly and b above membrane vegetated roof system. The typical modern vegetated roof system requires a minimum of eight 8 functional layers. Flat roofs are ideal as green roof.

The system structure for a flat water retaining green roof consists of a drainage layer with filterfleece extensive roof garden substrate and a vegetation blanket. Green roof property tax abatement. The roof base assembly includes the water proofing membrane rigid insulation protection board and structural system. In the nanyang school of art the line between landscape and building are blurred.

The report the engineer provides analyzes the structural systems of the building and how they all work together. Saturated with water the weight can increase by as much as 35 to around 100 to 110 pounds per cubic foot. Green roof assemblies are typically composed of two systems. Shallow pitched green roof 5 25 the structure of a shallow pitched green roof differs slightly from the structure of a flat roof.

Lighter and shorter vegetation is recommended for slanted roofs. Because a green roof will add substantial weight to a building s structure you must hire a professional engineer or registered architect to perform a structural analysis to determine if the existing roof and its support system can hold the added load without a modification. 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. Chosen plants should be based on the type of roof surrounding climate and condition of the building.

Also you need to protect the building structure so this is my recipe for making a living roof. Beyond the aesthetic value of this green roof design this living skin saves heating and cooling costs and collects rainwater for landscape irrigation. 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. For flatter roofs and stronger buildings taller and heavier vegetation can be used.

Structural loads weight of green rooftops one cubic foot of dry agricultural dirt or loam typically used for a green roof weighs between 75 and 81 pounds. Structural engineers do structural assessments and then advise you on what to do if the roof needs any modifications so it will support a green roof. The five story structure features two curved sections with stretches of green roof fully accessible to students.