Exploration of window systems with innovative glass - especially vacuum insulating glass - for building renovation

Exploration of the use of the first fabricable highly insulating vacuum glazing (VG) for highly efficient window systems specifically for the renovation of existing buildings via Verification of the availability and performance of Vacuum Glazing VG worldwide, Concepts for structural optimization and thermal simulations of integrated systems, Investigation of typical applications and market potential studies and Identification of achievable energy savings for single buildings and settlements.

Short Description

Starting point/Motivation

Good heat and sun protection is essential for the energy efficiency of buildings. Modern thermal insulation glass is already a very important component. But triple insulating glasses are not only heavy but also present a very large total thickness. This means larger loads for the frame structures, but also higher requirements on the fitting systems. Consequently their deployment potential use especially in thermal retrofit cases (including heritage protected objects) is reduced.

Contents and goals

In the past, efforts have been made to develop so-called Vacuum (Insulation) Glazing to replace common Insulating Glasses. Now, for the first time large, industrially manufactured, very thin, light weight, highly heat-insulating VG/VIGes are available from the Synergy Company in Beijing.

This makes it possible to design new windows and facade elements (lighter, smaller and thermally more efficient). However, there is a lack of knowledge on the technological implementation and adaptation of existing systems for this new technology which will be created within the framework of this project.

Methods

The purpose of this exploratory is, to create the basis for further developments of adapted and applicable window systems. This is to be achieved via:

  • Verification of the availability and performance of Vacuum glazingVG worldwide,
  • Design application studies and concepts for structural optimization and building physics as well as thermal simulations of integrated systems
  • Investigation of typical applications and market potential assessment
  • Identification of achievable energy savings for single buildings and settlements
  • Small-scale field tests and LCA calculations.

Expected Results

This investigation expects to answer primary questions of constructive installation, thermal insulation, usability and noise insulation and prepare follow-up projects to develop appropriate system solutions.

Project Partners

Project management

Vienna University of Technology, Department of Building Physics and Building Ecology

Project partners

Holzforschung Austria, Wien (HFA)

Contact Address

Department of Building Physics and Building Ecology
Vienna University of Technology
Karlsplatz 13
A-1040 Vienna
Tel.: +43 (1) 58801 27003
Fax: +43 (1) 58801 27093

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