Repairing Double Glazed Windows When Double glazed windows "blow" the insulating argon escapes causing the window to lose its energy efficiency. The good news is, damaged double glazing is typically repairable without having to replace the windows. Moisture or condensation in between your double-glazed windows is the most common indication http://srv29897.ht-test.ru/index.php?subaction=userinfo&user=formatpisces5