Refurbishment of Flatåsaunet
LOCATION : TRONDHEIM, NORWAY
DATE : SPRING SEMESTER 2015
STUDY PHASE : MASTER THESIS
The thesis is part of the international master Sustainable Architecture (MSc) taken at NTNU and is done in collaboration with NTNU, LINK Arkitektur, and TOBB. The thesis explains a solution to how a group of residential blocks can be refurbished in a sustainable way, taking into account the site, the buildings, and the residents.
The project combines the current need for refurbishment with the opportunity to not only upgrade the existing buildings to at least TEK10 standards, but also to focus on sustainability issues and opportunities of the buildings and the site. There are three parts of this project that are closely related: upgrading of the existing building, site development, and increasing the sustainability of the buildings and the site. The refurbishment concept was evaluated on four perspectives: finances, user, architecture, and technical.
The goal of this thesis was to analyze the possibilities of refurbishment that apply to Flatåsaunet Borettslag and to other similar apartment blocks in Norway. The proposal should result in energy efficient and user-friendly homes with a good indoor thermal comfort.
After analysing and evaluating the existing buildings, several measures were chosen to refurbish the building. These included replacing and extending the facade, adding a new floor, insulating the existing roof, changing to a balanced ventilation system, and adding a heat pump and PV-panels as renewable energy sources. Throughout the project, simulations for daylight, energy consumption, and PV production were done to justify the refurbishment. The site around the buildings was improved to encourage social activities around the blocks. The improvements included adding a community house, creating a car-free zone around the buildings, and improving the existing playground.
After the refurbishments, the total energy consumption of the building was reduced with 42%, of which 35% is now produced by the heat pump and the PV-panels. There is also drop in CO2 emissions associated with the delivered energy.