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Sash & Case - Performance
Performance Ratings
The tables below give our Window Performance Ratings.
| Performance | As Standard | Best |
|---|---|---|
| Glass U-value | 1.3 | 1.0 |
| Energy- Rating | A | A+ |
| G-Value | 71% | As required |
| LT | 81% | As required |
| Acoustic | ||
| Rw | 30dB | 41dB |
| Weather | ||
| Classification | 2000 (BS6375 Part 1) | |
| Air | Class 4 (EN 12207-200) | |
| Wind | Class 7A (EN 122208-2000) | |
| Water | Class C5 (EN 12210-2000 Class C5) | |
| Operation & Strength | ||
| Classification | Pass (BS6375 Part 2) |
Certifications
Warranty
All our products come with a 10 year guarantee as standard.