Spacia 21 Heat Insulating Clear is a vacuum insulated glass realizing high heat insulating performance with thinner structure. It has such a hybrid structure that low thermal conduction gas of argon is filled between our proprietary vacuum glass Spacia Cool and Low-E glass, and total thickness in only 18.2 mm and coefficient of overall heat transmission of 0.74 W/m2K is achieved. Its heat insulating performance is about four times higher than general insulated glass or equivalent to 50 mm of glass wool.
Tech category: Vacuum Low-E insulated glass (LE3+Ar9+FL3+V0.2+LE3)
Unit of measurement: Coefficient of overall heat transmission
Manufacturer: Nippon Sheet Glass Co., Ltd.
Model number: Thermal Insulation Clear
Parent / Derivative (core technology or derived): Parent