Vacuum Insulated Glass, Explained.
Independent guides, comparisons and technical insights on Vacuum Insulated Glass (VIG) for buyers, architects, window manufacturers and glazing professionals.
What this site covers
VIG Guide focuses on Vacuum Insulated Glass (VIG) — also called vacuum glazing — a sealed double-pane unit with a sub-atmospheric cavity that delivers triple-pane thermal performance in a slim profile. Use the sections below to dig into the fundamentals, the comparison landscape, and the brand ecosystem.
Learn
Background knowledge, pillar explainers, and topic-cluster deep-dives on VIG.
Compare
Side-by-side comparisons of VIG against double, triple, and low-E glazing.
Brands
Product profiles from established VIG brands and emerging challengers.
Applications
Heritage windows, sash windows, steel frames, curtain wall, and sloped glazing.
Technical
Standards, U-values, durability, edge seals, and pillar mechanics.
Manufacturers
Companies, factories, and geographies that produce VIG at scale.
Start with the pillar guide
New to vacuum glazing? Read thecomplete VIG guidefor a structured walk through the technology, terminology, and trade-offs — or jump straight to theVIG vs double-glazingcomparison if you already know the basics.