System Performance | System Description | Case Study
Frit Glasses
Part of:  Patterned Glazings  

Made by:  Viracon   
Used by:

Using ceramic frit silk-screening, Viracon’s Silk-Screened glass insulating units (IGU) provide shade through standard or customized patterns and colors printed on glass.

System Performance

Viracon’s Silk-Screened Glass can be used as a shading option integrated in the glass’ surface, which also provides some privacy control. For fixed systems, the selection of the printed pattern on the glass will determine the level of solar gains protection and the permeability to visual contact, and will depend on pattern model, size of the motifs, and color. To optimize solar gains control, the design of the pattern must be calculated for the specific façade conditions (orientation, position, geographical location, surrounding obstacles, etc.). Viracon recommends applying the silk-screen pattern to the second surface of the IGU for optimum solar performance. The sealed air space protects the ceramic frit for easy maintenance. For a greater flexibility in shading options, the silk-screened ceramic frit can also be applied to more than one surface, or to the second, third, or fourth glass surface in a laminated vision glass application. The results are an increase in solar absorption on the interior glass ply and a higher shading coefficient. For a more advanced lighting analysis and project specific results, we recommend using the Lightsolve program (under development).

Performance data for all systems in the same category. Comparison to systems in other categories, selected through the matrix filtering process.


System Description

The first step in silk-screening involves washing the annealed glass. Then, the ceramic frit paint is applied to one side of the glass. Next, it is fired within a tempering furnace to create a permanent coating. The glass is always either heat strengthened or fully tempered to prevent glass breakage due to thermal stresses under sunlit applications. The silk-screened patterns can be combined with clear or tinted glass substrates, as well as with high-performance coatings to reduce glare and decrease solar transmission. The basic patterns are usually printed in white, but it is possible to select different colors, patterns, and even pictures to be silk-screened. The minimum glazing unit dimensions are 12" x 12 " (305 mm x 305 mm), the maximum glazing unit dimensions are 84" x 144" (2134 mm x 3658 mm), and there are also over-sized panels available that are 84"x165" (2134mm x 4191 mm) in size. Maintenance of the units is the same as for any other glazing unit, but special attention must be paid to abrasive cleaning products and scratching effects.

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