GlassTypes_i89

i89 Low-E Glass

4th Surface low emissivity coating

The 4th Surface Low-E glass coating is provided by i89. LoĒ-i89 on the 4th surface of your windows allows you to get near triple-pane performance in a double-pane unit, and meet the toughest energy guidelines as well.

270 plus and 366 plus use i89 for applications that require U-values that are lower than those that are possible with our standard 270 and 366 glass units. This may include projects with specific performance requirements or extra cold climates.

• Lowest U-value of all our Low-E IG options
• Meet Ultra-Low U-value Specifications
• Increases the insulating properties of the IG unit
• Increases room comfort

Cleaning i89 Glass