Visible Light Transmittance Through Residential Windows – How Low is Too Low???

The 2x-pane insulated glass units (IGUs) from the ’60s in the true divided lite living-room window (attached) are being replaced with 2x-pane IGUs which will have one or two coatings… The 2x-pane insulated glass units (IGUs) from the ’60s in the true divided lite living-room window (attached) are being replaced with 2x-pane IGUs which will have one or two coatings…Read MoreGreenBuildingAdvisor