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SCHOTT North America
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Functions ASI® Glass: Thermal Insulation
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Building insulation with ASI® Glass
Minimizing thermal loss in winter
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The U-value refers to the thermal insulation effect of the building; it is the coefficient of heat transmission for the materials that comprise the building shell. The glazing must serve two purposes: it must be transparent to sunlight, but insulate from thermal radiation. Modern glass coatings (low-e coatings) facilitate the separation of the shorter wavelength sunlight from the longer wavelength thermal radiation. In the table below U-values of various glazing systems are compared to those of ASI THRU® double glazing. The photovoltaic ASI THRU® double glazed elements reach low U-values comparable with high-quality conventional double glazing; hence they are suitable for large areas of glazing without sacrificing any loss in thermal comfort during the winter and, most importantly, with the additional benefit of generating electricity.
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u-Values of different glazings
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U-Value (EN673) |
| Single glass pane or laminated glass |
5-6 W/mēK |
| Double glazed unit without low-e coating |
2.7 W/mēK |
| Double glazed unit with low-e coating |
1.2 W/mēK |
| ASI THRU® double glazed unit |
1.2 W/mēK |
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Contact
SCHOTT North America, Inc.
555 Taxter Road Elmsford, NY 10523 USA
 | +1 (914) 831 22 41 |
 | +1 (914) 831 23 46 |
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