Tag Archives: glass U-values

What Slim Glazing Frames Can Cost You in Thermal Performance

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Why Slimmer Does Not Automatically Mean Colder It is easy to assume that making a glazing frame slimmer must come at the expense of thermal performance. The reasoning appears intuitive: if there is less visible frame around the glass, there must surely be less material available to resist heat transfer. In practice, however, sightline and […]