Low-E Glass vs Standard Glass
Energy Efficiency Guide
Low-emissivity coating benefits: energy savings and UV protection explained for Bishop's Stortford homeowners.
Low-E vs Standard Glass Comparison
Advanced coating technology vs traditional glazing
| Property | Low-E Glass | Standard Glass |
|---|---|---|
| U-Value (W/m²K) | 1.4-1.6 | 2.0-2.8 |
| Solar Heat Gain | Controlled | High |
| UV Protection | 95%+ blocked | Limited |
| Light Transmission | 70-80% | 85-90% |
| Cost Premium | £20-40 per window | Standard |
| Annual Energy Savings | £25-50 per window | Baseline |
| Payback Period | 2-3 years | N/A |
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Low-E Glass Additional Benefits
Frequently Asked Questions
Expert answers to Low-E glass questions
Low-E (low-emissivity) glass has a microscopic metallic coating that reflects heat back while allowing light through. This keeps heat inside in winter and blocks solar heat in summer, improving energy efficiency.
Low-E glass can reduce energy bills by 15-25% compared to standard double glazing. For an average Bishop's Stortford home, this represents £150-300 annual savings.
No, modern Low-E coatings allow 70-80% of visible light through while blocking infrared heat. Your rooms will be just as bright but more comfortable and energy-efficient.
Yes, Low-E glass typically adds £20-40 per window but saves £25-50 annually per window in energy costs. The payback period is usually 2-3 years with 20+ years of continued savings.
Low-E coatings are virtually invisible to the naked eye. You might notice a very slight tint in certain lighting conditions, but it doesn't affect the appearance of your windows.
Yes, Low-E glass blocks 95%+ of harmful UV rays, protecting furniture, carpets, and artwork from fading. This is an additional benefit beyond the energy savings.
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