Research
research sponsored by BBSA (BIASED)
source
| Blind Design | U-Value [W/(m²·K)] | ΔU on Baseline [W/(m²·K)] | % Change on Baseline |
|---|---|---|---|
| Glazing Only (baseline) | 1.52 | - | - |
| Roller (Free hanging) | 1.32 | -0.20 | -13% |
| Zip (Flocke) | 1.17 | -0.35 | -23% |
| Zip (Ultimetal) (roller blind) | 0.96 | -0.56 | -37% |
| External Roller Blind / Flocke | 1.20 | -0.32 | -21% |
| Honeycomb (Free hanging - foil insert) honeycomb blinds | 1.09 | -0.43 | -28% |
| Fitted to Glass Honeycomb (foil insert) | 1.00 | -0.52 | -34% |
| Shutter | 1.06 | -0.46 | -30% |
| Honeycomb (Free hanging - no insert) | 1.08 | -0.44 | -29% |
- no mention of type of shutter
zip and honeycomb seem to be the winners.