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 of the public hous­ing is a splen­did exam­ple of how a total economic approach to reno­va­tion enables signif­i­cant soci­etal savings in both CO2 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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SUSTAIN­ABLE ALL THE WAY AROUND

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 as a start­ing point and culti­vate and refine them, so that the whole of 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 body, 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 facade 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.
The fully renovated homes.