Embuild Vlaanderen advises potential buyers to be ambitious with their renovation plans and aim for an A energy mark from the start. The building association has calculated the payback times for investments to gradually move a 136 sqm semi-detached building from 1956 with label F to label A to bring.
Roof insulation To move from label F to label D (360 kWh/m2 per year). Count on an investment of at least €4,000 and annual energy savings of up to €1,885. Payback period: more than two years.
He. She Replacement of exterior carpentry To move from label D to label C (280 kWh/m2 per year). Cost: about 24,500 euros. Annual savings in energy costs: approximately 685 euros. Payback period: 35 years, the longest of all interventions.
Insulating facades To reach mark B (155 kWh/m2 per year). Minimum investment: 27,000 euros. Annual savings: €1,071. Payback period: 25 years.
The gas boiler has been replaced with a heat pump To achieve the A mark (100 kWh/m2 per year). Minimum investment: 10,000 euros. Embild also recommends installing solar panels right away, otherwise your energy bill will go up.
With the Installation of ventilation system Improves energy rating by 62 kWh/m2 per year. Count on 5,000 euros for this purpose. It is above all an investment in a better indoor climate and important to prevent humidity problems.
to Solar Panels It is possible to reduce energy consumption to zero on an annual basis (A+ mark). Cost: 4500 euros. Annual energy saving is 2066 euros. This procedure will therefore cover its costs in just over two years.
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