Renovated buildings · Tertiary buildings

Osramhuset, Denmark

A listed concrete-framed building in Copenhagen, renovated in 2009 with insulation, secondary glazing, heat recovery ventilation and efficient lighting. Energy savings reached 58%.

Building envelope and structure

Osramhuset is a detached concrete-framed building, with one floor and a basement. As a listed building insulation was added to the inner faces of the front wall and outside faces of other walls, improving airtightness significantly. Windows were replaced where they could be, and a secondary glass lining added behind the front wall.

Heating and energy

The building was fitted with heat recovery ventilation, highly efficient lighting and better controls for equipment.

Energy performance

Energy savings of 58% were achieved.

Project team

• Architect: Brigitte Kortegaard/Tegnestuen T-Plus ApS
• Technical consultants: ROCKWOOL, Wissenberg A/S