Civil Engineering Reference
In-Depth Information
5.4.4 DHW and Heating
Provision is made for renewable energies to meet the requirements for primary
energy.
5.4.5 Passive Cooling
For Sonderschule 4, the old internal concrete structure was partially kept open on
the ground floor under the ceilings to help thermal summer balance and night
cooling. For the same reason, the new concrete floor for the second storey was also
kept visible as a ceiling for the first floor. Night cooling is further enhanced by
specific window openings and specially designed catches to keep classroom doors
partially open. The excess warm air is expelled by natural buoyancy through shafts
above
the
stairwell.
Schwanenstadt
is
similarly
equipped
for
night
cooling
(Fig.
13
).
5.5 Other Considerations
In the case of the two schools in Linz, the motivation to move forward with the
Passivhaus standard came from the owners (where the municipality seems con-
vinced of the value of the Passivhaus standard for their buildings). In Schwan-
enstadt and Zams-Schöwies, a long discussion process was required (personal
communications, study tour, 2010). For example, in Schwannensadt, the project
was initiated by Günter Lang (who was seeking a relevant project for the Haus der
Zukunft/EU project) and permitted a redirection of the project towards the Pas-
sivhaus standard. In all cases, the people met during the visits expressed their
satisfaction with the retrofits of the school building, being teachers with the IAQ,
light and comfort, or the municipality with the improved quality of the offer to the
children.
Fig. 13 Sonderschule 4:
catches to keep door open
allowing night cooling. Photo
Xavier Dequaire
