Argon vs Krypton — Which Gas Fill?
Argon, krypton, xenon — what's the difference between sealed unit gas fills, and when is the premium for krypton actually worth it?
Category Technical Guides
Understanding U-Values in Sealed Units
Plain-English guide to U-values, what they mean, how they're measured, and how to choose the right sealed unit for Building Regs Part L compliance.
U-Values and WER: What the Numbers Actually Tell You
Home›Blog U-Values and WER: What the Numbers Actually Tell You One measures heat loss, the other balances loss against free solar gain. How to read both and which to use when. Two numbers dominate window energy talk: the U-value and…
Toughened vs Laminated: Which Safety Glass Goes Where?
Home›Blog Toughened vs Laminated: Which Safety Glass Goes Where? Both count as safety glass; they fail completely differently. The practical rules for doors, low panes, overhead and security. Toughened and laminated glass both qualify as safety glazing, but they protect…
Acoustic Glass: How Laminated Panes Cut Traffic Noise
Home›Blog Acoustic Glass: How Laminated Panes Cut Traffic Noise Why asymmetric panes and acoustic PVB interlayers beat simply thicker glass, and what decibel gains to expect. Noise complaints are now one of the most common reasons for upgrading glazing. The…
How Low-E Coatings Keep Heat In Without Blocking Daylight
Home›Blog How Low-E Coatings Keep Heat In Without Blocking Daylight The microscopically thin metallic layer that reflects room heat back inside — how it works and which type to choose. Low-emissivity glass is the single biggest reason a modern sealed…
Glass Thickness Explained: When 4mm Is Not Enough
Home›Blog Glass Thickness Explained: When 4mm Is Not Enough Pane size, wind load and acoustic targets all push glass thickness up. Simple rules for choosing 4, 6, 8 or 10mm. Most domestic sealed units are built on 4mm glass, and…
Warm Edge Spacers: How They Cut Heat Loss at the Edge
Home›Blog Warm Edge Spacers: How They Cut Heat Loss at the Edge Why the spacer bar is the weakest thermal link in a sealed unit, and what switching from aluminium to warm edge actually saves. Ask where a sealed unit…
How to Stop Condensation Forming Between Double Glazing Panes
Home›Blog How to Stop Condensation Forming Between Double Glazing Panes Why moisture appears inside a sealed unit, what the desiccant does, and the only fix that actually works long term. Condensation trapped between the panes of a double glazed unit…