How to improve energy efficiency in a duplex flat

How to improve energy efficiency in a duplex flat

A 170m2 duplex and single-family flat in Madrid (2003) with an energy rating of D can achieve a significant improvement with thermal insulation on its façade, roof and ceiling.

From normal home to optimised home

In addition to achieving significant savings, these improvements optimise sustainability. They do so by significantly reducing the pollutant emissions of the house compared to its initial energy consumption:

Before

16.416 kWh/year
Electricity
2.987 kg/year
Emissions CO2
D
Energy Qualification

After

+444€/year
11.976 kWh/year
Electricity
-27%
2.179 kg/year
Emissions CO2
C
Energy Qualification

Improvements to be implemented

The actions to be carried out are very simple and quick to perform:

Façade insulation

1.540 €
Thermal insulation is one of the most efficient and cheapest technologies for improving thermal comfort. This solution avoids 30%-35% of the heat loss or cold coming in and is installed in a single day.

False ceiling and roof insulation

2.000 €
It is an ideal solution for all homes. With this material, draughts and heat vents are eliminated. In addition, their installation contributes to sound insulation. 

Energy Certificate

240 €
In any case, users who decide to opt for these solutions will have to change the energy performance certificate (EPC) rating. Personalised consultancy is required to do this and to improve sustainability. 
 

Tangible results, great benefits

The interventions, as well as the EPC's own procedures, have a total cost of €3,420 and a tax deduction of 20%.

Short-term benefits

  • Energy efficiency in summer and winter.

  • Thermal comfort.

  • Sustainability. Reduction of polluting gases by using less energy.

  • Revaluation of the home.

Notable reductions

  • Energy consumption. Lower costs for boiler and air-conditioning (A/C) consumption.

  • C02 emissions. Reduction of greenhouse gases.

  • Electricity bills. Savings on electricity bills.

Sustainable and economic benefits

The changes will optimise the energy efficiency of the home, which will be upgraded from an D to a C energy rating. This will reduce CO₂ emissions and energy consumption.

The façade insulation, false ceiling and roof insulation will enhance the comfort of the house and thus the savings.

 

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Services that may interest you

We have many services at your disposal that will help you reduce your energy consumption and reduce your environmental impact.

Thermal insulation

Reduce your bills with Smart Thermal Insulation and gain in convenience.

Energy Rehabilitation

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Energy Certificate

Know the energy consumption and CO2 emissions of your home in detail.