Toftebo

RENOVATION WITH 89% CO2 REDUCTION

When:

2017

Where:

Værløse

M2:

4500

Builder:

Boligforeninegn DAB

Toftebo hous­ing estate was orig­i­nally built as terraced houses in the 1950s and today consists of 83 family homes with a mix of 2–5 room apartments.

The reno­va­tion project is a perfect exam­ple of how a full-scale economic approach to reno­va­tion can result in signif­i­cant soci­etal saving in terms of carbon emis­sions and energy for heating.

Over­all, the reno­va­tion has reduced the build­ing’s CO2 emis­sions by 89% and the heat­ing require­ment by 93%.

The area from above.

LOW ENERGY EXPENSES AND SUPERB INDOOR CLIMATE

The energy renovation of Toftebo focuses on creating the best conditions for reducing the building's energy costs, improving the indoor climate and increasing comfort. Previously, the residents of Toftebo already turned on the heat in September due to drafts and colds, and after the renovation, several report that they now turn up the thermostat for the first time in December. The building has been renovated according to the passive house standard.

Toftebo 2 | Bjerg Arkitektur
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THE SUSTAIN­ABLE WAY

The aim of the reno­va­tion of Toftebo has not only been to lower the heat consump­tion and main­tain the facades and roof. The start­ing point has been to take the build­ing’s exist­ing, posi­tive rhythms and refine them, so that Toftebo devel­ops in a sustain­able direc­tion, both socially, econom­i­cally and energy-wise — now and for the future. Toftebo there­fore appears after reno­va­tion as a lively and green area with better condi­tions for both social­iz­ing and privacy.

RESPECT FOR THE EXISTING EXPRESSION

Close-up of the renovated houses.

The reno­va­tion includes the build­ing’s facades, balconies and tech­ni­cal instal­la­tions. Based on the exist­ing expres­sion we have choicen simple and robust materials.

Our vision was to improve and opti­mize the build­ing enve­lope, and utilize the energy in the home as best as possi­ble. This is done by re-insu­lat­ing the build­ing, switch­ing to super-low-energy windows and estab­lish­ing effi­cient heat recov­ery systems that both ensure fresh air in the homes and recy­cle the heat with up to 85%. In this way, it is also possi­ble to utilize the free solar energy from the sun, and the energy that the people and appli­ances in the home give off to heat the home. 

Close-up of the renovated houses.
Søren Riis Dietz

"Toftebo shows that it is possible to renovate the existing building mass to the passive house standard within the general framework.
The passive house renovation was cheaper to carry out than the necessary repair of the buildings according to the condition report"

Søren Riis Dietz, architect 

The facade and the building envelope are tota enovated. Windows are replaced and here the new balconies are also shown.
Graphic display of the effect with solar whim.
Toftebo 9 | Bjerg Arkitektur