Koldioxidabsorption av Gröna Väggar : En utredning av växter på fasader ; Carbon Dioxide Absorption by Green Walls : An Investigation of Plants on Facades

The pressure on current urban ecosystems is an ongoing problem as greenhouse gaseshave a negative impact on the climate but also on people around the world. As manycities are densely populated, it becomes difficult to introduce more greenery into citieswithout taking up a lot of space, for example by building parks. Therefore, vertical plantsystems placed on facades around the city can be a solution to mitigate the effects ofurban warming and help absorb carbon emissions. The aim of the study is to expandthe knowledge of plant façades with respect to carbon dioxide absorption. The studyexamines three key aspects, namely the economics of installation and maintenance, thelong-term sustainability of carbon absorption and the energy-saving potential of greenwall insulation.The different data collection methods used are literature studies and interviews withcontractors. Fytotextile on the modules was the material whose U-value was used forthe energy calculations; these are used by a company in Spain, Terapia Urbana. Theirquotes were also used for financial calculations to see the viability from an economicperspective.The study shows that the most suitable option for using plants on façades is to chooseresistant and fast-growing perennial plants that require little maintenance as these arethe most optimal for use on façades. The plant Flock Fist was recognized as a suitablespecies for implementation on green walls through various surveys and in-depthinterviews, due to its extended lifespan and inherent ease of maintenance. Analysesinvolving economic, energy and sustainability calculations show that the incorporationof green walls is economically unprofitable. However, in terms of sustainability andenergy efficiency, it appears to be a more practical and beneficial solution.The results show that installing plant façades on buildings can reduce energyconsumption and promote sustainability. The results also revealed that a building with400sqm of green façade can absorb the annual CO2 emissions of a building for 25 ...