Grinda Wärdshus : Hållbara Isoleringsmöjligheter förVandrarhemmet på Grinda

Sammanfattning: pelago. There is an old inn that is located on the island that has become a very popular attraction in the last couple of years. The inn has both a well-known restaurant as well as conference facilities that are used by tourists as well as the people of Stockholm over the summer months. The inn was built 1908 and has since remained in the same condition. make islands in the archipelago more environmentally friendly and promote sustainability. One of their project islands is Grinda. A focus on the island is to implement strategies to improve the exterior of the inn to increase energy efficiency. The current heating system is oil based and any improvement in energy efficiency will directly correlate to the decrease in heating oil consumed. With the help of thermal imagining three measures have been proposed: - Improve the insulation in the attic - Improve the insulation in the floor of the restaurant - Improve the insulation of the window frames. energy consumption would be decreased if different insulation measures were put in place. The inn 3had an annual oil consumption of 20m  and different insulation measures could decrease the oil consumption. This could lead to a decrease in the CO  emissions which leads to a decreased 2ecological footprint. The report found that the inn had to have an airflow between 345-2000l/s depending on the time of year and how many people were in the building.   The inn has a natural ventilation system and can suffer mold-, water- and other building damages if it becomes too insulated. This report finds that if any insulation technique become implemented it is suggested that a mechanic ventilation systems get built. A suggested mechanic ventilation system is a FTX system that recycles 80% of the heat. By installing a FTX system the inn would 3save 4,8m  of heating oil per year and with a 10 year installation depreciation period it would save 547200kr. Insulation measures possible from the thermal imaging were named in the report. Insulating the attic would decrease heating costs with up to 25% and could remove some 15 tons of CO  2emissions per year. To insulate the attic would cost around 25000kr and have a payback time of 4 years. To insulate the window frames would be the cheapest measure as it can be done by the own employers. Finally, there are many measures that can be done to improve the energy efficiency of the Inn. It is important to keep in mind the ventilation of the building if any measures do get installed. The best alternative for the inn is to install a FTX ventilation system as well as insulation measures which can create big savings in heating costs and promote sustainability.