My two Velux GHL 606 windows glass are cracked due to intense heat. I need to get replacement glass but information about the actual glass size (thickness and spacer) is contradictory and Velux advise 'replace the whole unit' . Some advice is 'all pre 2001 windows are 16mm' , other is 'glass is 24mm' , and ' 4 14 6 ' . Replacing the units looks straightforward enough, and possibly can be done in situ without removing the window. I know from experience how heavy these windows are.. It's difficult to measure the actual unit but it doesn't look like 24mm
Glass sizes for Velux windows
- Thread starter cgkstevenson
- Start date
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To measure the DG unit thickness follow the guide in the last post in this thread: https://www.diynot.com/diy/threads/when-is-it-best-to-replace-windows.607099/#post-5426108
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