Quick Summary Reducing operational carbon through smarter glazing choices involves selecting high-performance glass that improves energy efficiency and lowers building energy demand. Double or triple glazed units with low-emissivity coatings and gas fills reduce heat loss and minimise the need for heating and cooling. Solar control glass limits overheating and decreases reliance on air conditioning….
Warm edge spacers are critical for achieving low whole window $U_w$ values in commercial glazing by eliminating the thermal bridging associated with traditional aluminium bars. Manufactured from low-conductivity materials like engineering plastics or silicone foam, these spacers significantly reduce linear heat loss around the glass perimeter. This technical improvement helps developers meet Approved Document L requirements, minimises condensation risks, and improves occupant comfort near large glazed facades. By absorbing structural movement and reducing stress on edge seals, high performance warm edge systems prevent premature unit failure, securing long-term durability for commercial building facades.
Quick Summary A double glazing supplier for trade and developers is defined by product quality, reliability, and specialist support for large-scale projects, as demonstrated by CN Glass. Key differentiators include consistent manufacturing standards, certified performance, and compliance with building regulations. Fast lead times and dependable delivery help keep projects on schedule. Strong suppliers also provide…
In the UK, 15% to 30% of a home’s heat is typically lost through inefficient or poorly fitted windows and doors. In older properties with single glazing or noticeable draughts, that figure can climb even higher, reaching 20% to 25%. With energy prices still a concern for many households, ensuring your home is performing at…
Structural glazing sealants are a vital component in today’s modern building systems. They allow glass to be securely bonded to other materials—whether glass‑to‑glass or glass‑to‑metal—while offering exceptional flexibility, UV resistance, and long‑term durability. These qualities make silicone sealants the preferred choice for load‑bearing applications such as curtain walling and glass façades. At CN Glass, based…
Is Your Home Ready for Warmer Days? After the recent cold snap, many of us are already dreaming of brighter days and the simple pleasure of opening our homes up to the outdoors again. But harsh winter weather doesn’t just make us reach for an extra jumper — it can take a real toll on…
Quick Summary Certified double glazed sealed units meet building regulations by providing verified thermal performance, safety, and durability standards required for modern construction. These units are tested and accredited to ensure compliance with energy efficiency targets, such as reducing heat loss and improving insulation. Certification confirms that the glass and spacer components meet regulatory requirements…
JOIN US AT THE LISTED PROPERTY SHOW 2026 AT OLYMPIA, LONDON The Listed Property Owners’ Club is returning to London Olympia on 30th and 31st January 2026 and once again, CN Glass will be exhibiting. This is your opportunity to meet the most comprehensive collection of regional and national specialists in conservation, restoration, and glazing…
Quick Summary Choosing the right sealed unit for a commercial glazing project requires matching performance specifications to the building’s functional and regulatory needs. Key factors include thermal efficiency, solar control, acoustic insulation, safety requirements, and durability. The unit must meet target U-values, control glare and heat gain, and comply with relevant building standards. Glass types,…
Drafts: Run your hand around the edges of windows and doors – can you feel cold air coming through? Seals: Inspect rubber seals for cracks or gaps. Worn seals can let heat escape. Condensation: Look for moisture between double-glazed panes – this may indicate a failed unit. Locks & Hinges: Ensure doors and windows close…
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