Superior UV protection means to have the choice!

Because whether you have a solution:

here at our company, our primary focus is on the object and its (along with your) requirements...

...not on a single glass product from a single manufacturer...

But one by one ...

 

Protective glazing - More security with optimized radiance filtering

Conservation materials age faster when they are not optimally protected from damaging radiation.
Conservation materials age faster when they are not optimally protected from damaging radiation.

Sunlight - damaging radiation

The radiance spectrum that comes from the sun does not only deliver visible light but also invisible radiance.

This radiation that reaches us by sunlight can cause harmful sunburns and sunstrokes, if we are exposed to it too much. But this radiation isn’t only dangerous for human beings it endangers historical artefacts and conservation materials as well.

UV-radiation has increased since 1967 at about 15% for the average altitude of the sun in the month February. (BayFORKLIM-final report 2000).

Colour pigments bleach, binding agents are destroyed by UV-radiation and chalk off, in paint coating tensions emerge and the conservation materials yellow and crumble away.

 

The possibilities of former radiation protection

Shading of windows: if possible to lead all the sunlight out by covering the windows, it is the best UV-protection. But the risk increases as well by the use of the wrong lighting systems, because they can offer uv-radiation as well.

Lamination sheets: The higher the UV-protection level of such sheets is, the worse gets the daylight quality because of discolouration and absorption of the radiation spectral parts. Those sheets usually age and deteriorate very fast.

Laminated safety glass (LSG): The UV-protection of conventional LSGS with PVB foils lead to no ideal actinic radiation protection for sensitive materials. The PVB layers in those laminated glass structures absorb in the beginning short wave radiation only up to 355 nm by 0,35 mm foil layers or up to 385 nm by the thickness of the foil layers of 1,52 mm. With the aging this kind of foil layers deteriorate quiet fast and then the results of the left radiation absorption gets continuously worse.

 

For many commercially available ""UV-protection panes"", the hazardous area (marked herein yellow) remains mostly unprotected.
For many commercially available ""UV-protection panes"", the hazardous area (marked herein yellow) remains mostly unprotected.

Exact Analysis

If our serial panes do not suffice to meet your needs, the first step in the application of your custom radiation-protection panes is the precise diagnosis of the desired effect along with an assessment of the surrounding conditions.

In this process, it is necessary that our radiation physicists perform on-site an exact analysis of the situation. This takes place in co-operation with a conservator as well as (if necessary) an additional structural physicist.

In this process, the situation on-site with regard to lighting, climatic conditions and available space is recorded on-site, then analysed and processed, in order to apply this information to the development of am appropriate recommendation of measures to be taken – with the panes required for the particular object-specific situation, which in the context of this approach also include structural-physical
effects.

This is the only way to ensure that the numerous factors significant to the selection of the proper type of pane are accordingly taken into account and that the improvement of one aspect does not contribute to the worsening of another (i.e., climate, colour reproduction, etc.)

 

Long-term application without deterioration of the effect

In stress tests, a useful life of more than 150 years without the deterioration of the effect was simulated.

This reliability will certainly also qualify the apparent price advantages of adhesive UV-protective films.

 

Protective pane in front of an altar retable; similar panes are also applied to display cases.
Protective pane in front of an altar retable; similar panes are also applied to display cases.

Application possibilities

The application options of our serial (and most especially our custom irradiation-protection panes) are quite diverse. These are applied to numerous areas.

For instance, as a protective pane for windows and fronts in

  • museums, collections, galleries
  • churches, fortresses, castles
  • archives, libraries
  • private homes with top-quality furnishings
  • sales floors with top-quality goods

as well as in the form of protective panes for

Come and talk to us!

We will gladly name to you our references from the successful application of our panes and discuss with you the requirements of your project.

Here, you can find out more about the basic premises of UV and irradiation protection.

 

Datenblätter unserer UV++ Schutzgläser

Datenblätter unserer UV++ Schutzgläser

Von den wichtigsten Glas- und Filterkombinationen finden Sie hier die entsprechenden Datenblätter.

Bei objektspezifischen Glasentwicklungen können im Rahmen des Entwicklungsauftrages auch Daten für die individuell auf Ihr Objekt abgestimmten Gläser gemessen werden.

 

References

St. Ulrich und Afra in Augsburg: in addition to our UV++ protective panes with IR protection, we also use (in partial sections of the window) OI Verosol 816 with an additional, freely-hung UV++ protective film in order to minimise the approx. 23% transmission rate of the light-shield material to 0% at an approx. wavelength of 390 nm and (in this manner) reduce the damage factor according to Hilbert and Judd from 31 to 0 in this area.
St. Ulrich und Afra in Augsburg: in addition to our UV++ protective panes with IR protection, we also use (in partial sections of the window) OI Verosol 816 with an additional, freely-hung UV++ protective film in order to minimise the approx. 23% transmission rate of the light-shield material to 0% at an approx. wavelength of 390 nm and (in this manner) reduce the damage factor according to Hilbert and Judd from 31 to 0 in this area.

Here are some references (buildings) into which these panes were inserted: