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        • Insulation zone slide show
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      • No "kissing"
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      • Complements wall R-values
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      • Comfortable spaces
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      • Long life overview
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        • Spacer and edge seal slide show
        • Why IGUs fail slide show
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      • Reduce capital costs
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      • Large windows
      • Life cycle costs >
        • Video: Glass Tower Problems
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LiteZone Glass Inc.
  • Home
  • Overview
  • Product
    • How it works >
      • Construction
      • Scalability
      • Insulation zone >
        • Insulation zone slide show
      • Minimizes weight
      • No "kissing"
    • Highest performance >
      • Performance values
      • Testing
      • Visible light transmission
      • Complements wall R-values
    • Human comfort >
      • Comfortable spaces
      • Sound insulation
      • Blocks ultraviolet light
    • Extreme longevity >
      • Long life overview
      • Air filled
      • Pressure equalized
      • Superior film suspension
      • Superior spacer and edge seal >
        • Spacer and edge seal slide show
        • Why IGUs fail slide show
    • Reduce costs >
      • Reduce capital costs
      • Reduce energy costs
      • Lowest cost relative to performance
      • Large windows
      • Life cycle costs >
        • Video: Glass Tower Problems
  • Applications
    • Upgrade old or failed IGUs
    • Instead of triple pane
    • Renovations
    • New construction
    • Sunrooms
  • Projects
    • Replacement of failed IGUs in residence
    • Replacement of IGUs in high-rise buildings
    • Upgrade old windows
    • LiteZone® IGUs in fiberglass window frames
  • "Frameless" Installations
  • Window Systems
  • Curtain Wall Systems
  • Curtain Wall Upgrades
  • Purchase
    • Direct
    • Through partners
    • Become a partner
    • Warranty
  • In the Media
  • Contact
LiteZone Glass Inc.

Product/Highest performance:

Complements wall R-values

Performance values
Testing
Visible light transmission

​LiteZone
® complements the insulating values of building walls.

LiteZone® insulating glass units range in thickness from 1.75" to 7.6", depending on the configuration and desired performance. In today's residential construction typical overall wall thickness is about 7" including exterior finishes.

A 7" thick wall can accommodate window frames carrying glass units up to about 4.5" thick. A 7" wall can achieve an insulating value of about R19. A LiteZone
® thick IGU can achieve an R12 window with ~R15 centre of glass, complementing the wall R-value much better than previously possible.

Some high performance walls have overall wall thicknesses as much as 10" to 13" including exterior finishes. By adding insulation to the exterior, these kind of walls can achieve insulating values in the range of R40 to R60 (see adjacent photos).

A 10" to 13" wall can accommodate window frames carrying the thickest LiteZone
® glass units. A LiteZone® 7.6" thick IGU can achieve an R19 window with ~R22 centre of glass.

​
It makes sense for energy efficient homes to take advantage of their wall thickness to install windows with highly energy efficient thicker LiteZone® glass, in order to complement the wall R-value.
Consider that large glass units are more economical and energy efficient than small glass units, because they have less energy inefficient and costly edge area in proportion to their centre of glass area. Therefore LiteZone®, with up to ~R20 centre of glass, makes it possible for highly energy efficient buildings, even with R40 to R60 walls, to have large windows and more glass area and still meet their energy efficient design objectives and budgets.
R63 Wall
R47 Wall
Click on photos to see larger images.
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