
Sustainability of Existing Homes Construction and Installations
In this project is investigated how an existing, poorly insulated home could be made more energy efficient. The report follows on from earlier advice and focuses primarily on the construction of the home, including the foundations, façade and roof.
The current house was built using traditional stack construction, with wooden floors, an uninsulated cavity wall and a wooden roof structure. Based on the existing situation, the client's wishes and the applicable regulations, various sustainability measures were investigated.
The proposal combines cast construction and prefabricated construction, including prefabricated sandwich roof elements, insulated wide slab floors and new load-bearing interior walls. In addition, window frames will be replaced by PVC profiles with HR++ or triple glazing.
Improvements have also been proposed in the area of installation technology, such as an electric heat pump, balanced ventilation, solar panels and a solar boiler. Calculations show that the modified home meets the BENG requirements and uses a significantly higher proportion of renewable energy.

