Erfarenheter från flerbostadshus som passivhus : En handflata och sex värmeljus

Detta är en M1-uppsats från Högskolan i Jönköping/JTH, Byggnadsteknik; Högskolan i Jönköping/JTH, Byggnadsteknik

Sammanfattning:

All new households were to be constructed with "near zero energy house standards" (NZE-house) by the year of 2020. The ambition to construct energy-efficient buildings had to increase rapidly in the spring of 2013.The purpose of this report was to increase the interest for building contractors to construct apartment buildings with passive house standards. By locating and evaluating experiences from an existing passive house a case study including interviews, field visits and document analysis was made. Research of literature regarding other passive houses in Sweden also helped to answer the following questions:

- What positive and negative experiences have the study of the passive house meant to the involved stakeholders and residents?

- What improvements can be made based on identified experiences?

- How can an apartment building be designed as a passive house based on possible improvements?

By collecting good and bad experiences, as well as improvements and potential design proposals, a diagram was created designed as a tool for developers when constructing apartment buildings with passive house standards. The diagram was organized in the categories; material, immaterial and image. Positive experiences from the case study were for instance that estimated time table, budget and planned energy level were achieved mainly due to a designed prefabricated sandwich element of concrete and the organizational form called partnering. Negative experiences were for example problems with high temperatures in staircase areas due to glassed facades and the lack of ventilation hatches, problems with condense and frost on windows, insufficient knowledge in using technical equipment and relatively high investment costs. Improvements and potential design proposals recommended by the authors were for example vertical lamellas for sunscreen and screening of the night sky, energy watchers in each apartment for higher energy awareness and a minor use of passive house independent qualities, in order to avoid the risk of building contractors not wanting to build passive houses due to high costs.

 

The experiences in the result diagram emphasized what building contractors should focus on in order to succeed with constructing apartment buildings, with similar requirements as the building in the case study, as a passive house.

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