Low-E Insulated Glass Unit (IGU)

Updated Mar 26, 2026

Double or triple-pane insulated glass with low-emissivity coating for energy performance. U-factor 0.25-0.35 (double), 0.15-0.22 (triple). SHGC 0.25-0.40. Argon or krypton gas fill between panes.

TAGS

glass IGU low-E window curtain-wall

DETAILS

shgc

0.25-0.40

u factor

0.25-0.35 (double pane)

cost per sf

$25-$60

csi division

sustainability grade

SOURCES

🔗https://www.aamanet.org/

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