
5mm grey | 12mm air gap | 4mm clear
This IGU format cuts down on heat and light entry on sunny exposures but also has superior insulative properties for retaining room heat in winter.
4mm clear glass |
clear glass |
clear glass & low e glass |
clear glass & argon gas |
tinted grey & clear glass |
tinted grey & low e glass |
clear glass, argon & low e |