September 25, 2017

Edgetech Super Spacers® discreetly remain in the background

The question of "warm edge - yes or no?" plays a key part when choosing a spacer. In addition to the technical functional principle and their energetic performance, spacers also differ in terms of their aesthetical impact. Perforations, which are required to ensure the effectiveness of the drying agent in many hollow profiles, can also disturb the visual impression to the same extent as glossy, light-reflecting stainless steel surfaces. “This kind of spacer sometimes stirs up a lot of emotions," explains Axel Hinderberger, managing director of the facade constructor that goes by the same name in Aalen. “The design of the glass edge seal may never be neglected during the coordination meetings, due to the fact it is definitely too late to conduct basic discussions concerning the appearance in the glass cavity during the acceptance following inspection", he continues. Horst Matias, Technical Sales Engineer at Edgetech Europe in Heinsberg, confirms the desire for homogeneous, smooth surfaces: “The visible side of a spacer is typically uniformly matt and is non-reflective. As soon as the insulating glass unit is inserted in the frame, Super Spacers completely disappear out of view due to the fact only the frame colour is reflected in the glass. Thanks to these properties, curved and flat glass units can also be installed harmoniously next to one another."
Curved glass in the Timmerhuis in Rotterdam
Döring and Edgetech jointly participated in one of the flagship projects of recent times: the Timmerhuis, designed by Rotterdam's urban planning experts OMA (Office for Metropolitan Architecture) in Rotterdam. The “greenest building in the Netherlands” unites the city administration, apartments, offices and the Rotterdam city museum and is an architectural bridge to the listed historical city hall. Originally, the design was based on the idea of raising offices and apartments on to a floating "cloud of glass and steel" above the Civic Centre on the ground floor. The curtain façade with triple insulated glazing provided by Saint-Gobain Glassolutions reflects the sky above Rotterdam. The stacked units almost seem provisional in some areas, as if someone had interrupted their computer game during its construction. This impression is intentional. The Timmerhuis has a modular design, more an object that is continually developing than an architectural statement. Fortunately the Timmerhuis has found a worthy tenant in the form of the Museum Rotterdam that has moved into the building in place of the Civic Centre.  The convex, curved glass elements of the entrance front form a soft, organic transition to the ground. 14,000 m2 in total were supplied by the Saint-Gobain Group for the façade. The glass panes with a flat design were received from the Objektzentrum Radeburg, Döring delivered 1,200 m2 of curved, double-glazed safety-barrier glazing SSG CLIMAPLUS  for the glass façades in the lower area. The elements are curved with a radius of 1,000 millimetres and a bending angle of 72 to 163 degrees. They are made with Super Spacer® spacers and are individually recessed in aluminium profiles.
Simple handling, precise application
Super Spacer® spacers provide important features for the simple manual processing of free forms and curved glass panes, as well as an aesthetically flawless end result. Thanks to the low edge seal height, Super Spacer® spacers can also be used with narrow frame profiles and low glass insets. The flexible material additionally facilitates perfect mitring at the corners. The polyisobutylene seal is concealed in such a way that even after a period of many years it cannot migrate from the edge seal into the sightline, and the lateral adhesive is also applied parallel to the glass edge without any overhangs.
Joachim Stoss, CEO of Edgetech Europe, particularly delights at the fact that Döring and Edgetech have been "Partners in Glass" for many years: "The team at Döring knows how the Super Spacer can be used and how to manually apply it precisely after so many projects."
About Edgetech Europe GmbH
Edgetech’s Super Spacer® flexible foam-based spacer systems act as energy-efficient warm edge spacers in insulating glass windows. They significantly reduce energy loss to the outside, largely prevent condensation and also contribute to the lifespan of a window.
Edgetech Europe GmbH, located in Heinsberg Germany, is a fully-owned subsidiary of Quanex Building Products Corporation, a leading global provider of energy-efficient components such as window and door profile systems, flexible insulating-glass spacers, edge seals for photovoltaic modules, wooden floors and ceiling profiles, as well as window and door grilles, with its head offices in Houston, Texas. Based on turnover Edgetech/Quanex is the world‘s largest manufacturer of spacers. Edgetech Europe GmbH is a sales location for the markets in continental Europe and one of the three worldwide Edgetech production plants, with a total of 450 employees and 16 extruders. You can obtain additional information about the Super Spacer® systems and the Warm Edge Technology of Edgetech here:

“Cloud consisting of glass and steel", Timmerhuis in Rotterdam

Curved glass in the lower section of the facade of the Timmerhuis, Döring Glas
Photo credit: VIEW Pictures Ltd / Alamy Stock Photo
The photos are RVB files.
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Ingrid Hecht
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Edgetech Europe GmbH
Johannes von Wenserski
Prokurist (holder of a general commercial power of attorney)
Gladbacher Strasse 23
52525 Heinsberg, Germany
Tel.: +49 (0)2452 96491-0