Centor Compliance - Thermal Performance
Reducing heating and cooling bills by minimizing thermal transfer between the indoors and outdoors, the Centor C1 will protect homes from the harsh outdoor environment.
Thermal breaks in both the aluminium frame and panel profiles have allowed the Centor C1 to achieve U values as low as 1.1 in independent thermal performance testing. Combined with Centor’s patented weather-sealing technology, including triple inter-panel sealing as well as a double-sealed frame, the Centor C1 will insulate homes against outside temperatures.
The Centor C1 Bifold meets BS EN ISO 10077 – 1:2006
Centor C1 'U' VALUES |
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Glass U |
Common spacer |
Thermally improved |
Common spacer & |
Thermally improved |
| 1.8 | 2.266 | 2.195 | – | – |
| 1.7 | 2.191 | 2.120 | – | – |
| 1.6 | 2.115 | 2.045 | – | – |
| 1.5 | 2.040 | 1.970 | – | – |
| 1.4 | 1.965 | 1.894 | – | – |
| 1.3 | 1.889 | 1.819 | – | – |
| 1.2 | 1.814 | 1.744 | – | – |
| 1.1 | 1.739 | 1.668 | 1.703 | 1.633 |
| 1 | 1.664 | 1.593 | 1.628 | 1.557 |
| 0.9 | 1.588 | 1.518 | 1.552 | 1.482 |
| 0.8 | – | – | 1.477 | 1.407 |
| 0.7 | – | – | 1.402 | 1.331 |
| 0.6 | – | – | 1.327 | 1.256 |
| 0.5 | – | – | 1.251 | 1.181 |
| 0.4 | – | – | 1.176 | 1.106 |
