Ensuring Sustainability in Brownfield Revitalisation as PDF

Materials
The building construction of concrete ceilings, load-bearing lime sand brick
and concrete walls, and non supporting gypsum plasterboard walls
corresponds to the current state of the art in residential building. The
same applies to the sanitary-ware and electrical equipment.
The outer shell is designed as a thermal insulation composite system with
14cm thick insulation (EPS). The wooden windows with double glazing
achieve a U-value of 1.4. The building is heated by means of district heating.
Pursuant to the energy-saving certificate, the building undercuts the
requirements of the German Energy Saving Ordinance
(Energieeinsparverordnung - EnEV 2001) by roughly 25%.
Procedure
The planners and administration agreed in advance to take an isolated view
of the building, irrespective of the actual surroundings in Tübingen. Several
alternative planning scenarios were used for the software test, simulating
adjustment of the model’s parameter and optimisation of the planning
process in several steps.
Development feasibility study, variant A
(photograph by Gudrun De Maddalena)
The trial run of the program took place following familiarisation of the
accompanying documentation. The data stored in the program correspond
to the Dutch specifications (building law, energy saving, building standards,
etc.) from 2004. The aim of the trial run was not to evaluate the reference
object but to examine the applicability and the appropriateness of the
software to be used within German framework conditions.
Program
Application
During the trial, the software ran smoothly without
any problems. No user problems in the program
application appeared.
However, several deficits in the content were
identified:
■ The program only focuses on the three monofunctional types of building
– residential building, office building and school building. Urban mixed
forms are not included. The selected test object (a residential and office
building) therefore had to be adapted to the predetermined conditions.
This automatically influences the results.
■ Two reference objects are stored for each building type. This enables an
appraisal by using a direct comparison with buildings that are not
described or documented in detail.
■ It is not possible to enter different building heights or different types of
roofs for one building. This would require making adaptations, which
would influence the result.
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