That boosts the likely for air circulation, that is exacerbated by the lack of seal in between panes. If your renovation challenge is aspiring to high amounts of thermal performance then Major double, as well as triple, glazing will be necessary.  The level of conduction of warmth is calculated by https://tweezersforshapingeyebrow78777.blogkoo.com/the-2-minute-rule-for-secondary-glazing-54064461