CTværdiberegninger

CTværdiberegninger, which translates to "CT value calculations" in English, refers to the process of determining the CT value of a building or construction project. The CT value, standing for "Co2-temperature value," is a metric used in Denmark to assess the environmental impact of a building's operational phase, specifically its energy consumption and associated carbon dioxide emissions.

The calculation involves several factors, primarily the building's heating and cooling demand, as well as the energy used for ventilation and lighting. The type of heating system (e.g., district heating, heat pump, oil boiler) and its efficiency play a crucial role in the CT value. Similarly, the energy performance of windows, insulation, and airtightness of the building envelope significantly influences the heating and cooling requirements.

CTværdiberegninger are mandated by Danish building regulations as part of the energy performance certification for new constructions and major renovations. The aim is to encourage more energy-efficient building designs and reduce the carbon footprint of the built environment. A lower CT value indicates a more energy-efficient and environmentally friendly building. These calculations are typically performed by certified energy consultants using specialized software that takes into account architectural plans, material specifications, and local climate data. The results inform design decisions and contribute to the overall sustainability goals of a project.