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THE ENERGY FUTURE OF EXISTING BUILDINGS IN BRUSSELS: BETWEEN PRESERVATION AND PERFORMANCE
| Area to be improved | Performance before improvements [W/m2.K] | Improvement | Performance after improvements [W/m2.K] |
| Sloped roof | 1.03 | Interior insulation | 0.33 |
| Façades | 1.60 | Exterior insulation | 0.58 |
| Dormer front | 2.45 | Exterior insulation | 0.78 |
| Board above | 1.97 | Insulation under | 0.40 |
| cellar Wood, single glazing | 5.24 | Version A: replaced with laminated glass (Ug=3.4 W/m2.K) / panel | 3.16 |
| Version B: replaced with double glazing (Ug=1.9 W/m2.K) / panel | 1.99 | ||
| Back door | 4.23 | Version A: replaced with laminated glass (Ug=3.4 W/m2.K) / panel | 2.81 |
| Version B: replaced with double glazing (Ug=1.9 W/m2.K) / panel | 2.38 | ||
| Veranda roof | 2.26 | Heated roof system | 0.58 |
| Attic roof | 1.92 | Insulation of the wooden floor in the attic | 0.81 |
| Veranda façades | 2.84 | Exterior insulation | 0.70 |
| Airtightness | Bad v50 = 12m3/h.m2 | Improve airtightness | Good5 v50 = 3m3/h.m2 |
| Heating | Efficiency: 65.40% | No improvement realised | Efficiency: 83.02% |
| Lighting | Several incandescent light bulbs | Replace incandescent light bulbs with LEDs | Only low-energy light bulbs |
| Ventilation | No ventilation system | Natural air supply and extraction via the wet areas | +/- System C |
Table 2
Measures Kruisbooglaan 34 (© Cenergie).
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