Renovation of historic windows
Historic windows are often replaced without much thought with new windows in order to meet current thermal insulation requirements. Additional options that can make existing windows more energy efficient must therefore be proposed.
Factsheet
- Schools involved School of Architecture, Wood and Civil Engineering
- Institute(s) Institute for Timber Construction IHB
- Research unit(s) Building Envelope and Building Physics group FGGB
- Funding organisation Others
- Duration 01.12.2010 - 01.11.2012
- Head of project Barbara Wehle
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Project staff
Marc Donzé
Prof. Dr. Christoph Geyer
Prof. Andreas Müller - Partner Stiftung zur Förderung der Denkmalpflege
- Keywords Building physics, Monument preservation, Energy saving, Window renovation, Thermal bridging calculation
Situation
Comparison of energy parameters of various renovation measures. Development of a calculation tool and thermal bridge catalogue for planners. Creation of two renovation guidelines for specialist planners and building contractors.
Course of action
Various renovation options are developed, taking into account the preservation of historical windows. A calculation tool is developed to determine the thermal transmittance coefficients of the renovation variants. Cost estimates for the renovation of existing windows and the renovation options included in the calculation tool are prepared. The energy-saving potential of the windows is shown on a reference building and compared with other renovation measures on the building.
Result
Calculation tool for the determination of thermal transmittance coefficients of single and box-type windows in existing buildings for a total of seven renovation variants; detailed thermal bridges catalogue of relevant window joints details; brochure for planners; brochure for building contractors; checklists for documentation and damage mapping; spreadsheets of typical defects and damage.
