Did you know that as much as 40% of the energy used in buildings can be wasted through inefficient insulation or outdated heating systems? Thermal modernisation is a process that not only reduces energy bills, but also improves quality of life and protects the environment. In this article you will learn what thermal modernisation is, what its main aims are, which thermal modernisation measures are the most effective and how to carry out the process step by step. We will also look at the benefits of thermal modernisation of buildings and suggest where to start.
What is thermal modernisation and what are its main aims?
Thermal modernisation is a comprehensive process of modernising a building, the aim of which is to improve its energy efficiency. It involves introducing solutions that reduce heat loss and optimise energy consumption. The main aim of thermal modernisation is to reduce the costs of heating and cooling the building, which translates into financial savings for owners. But that is not all. Thermal modernisation of buildings also aims to:
- Reduction of CO2 emissions – thanks to better insulation and modern heating systems, the building uses less energy, which directly reduces greenhouse gas emissions.
- Increase the comfort of use – improved thermal insulation eliminates thermal bridges, which means even heating of rooms and no draughts.
- Raise the property value – buildings after thermal modernisation are more attractive on the property market because they are cheaper to maintain.
In short, thermal modernisation is an investment that pays off – both financially and ecologically.
What does the thermal modernisation of a building include?
Thermal modernisation of a building is a wide range of measures that can be tailored to the individual needs of the facility. Most often it includes:
- Insulation of walls, roof and floors – using insulating materials such as polystyrene, mineral wool or PUR foam, which minimise heat loss.
- Replacement of windows and doors – installation of energy-efficient windows with double or triple glazing that keep heat inside the building.
- Modernisation of the heating system – installation of modern condensing boilers, heat pumps or underfloor heating systems.
- Mechanical ventilation with heat recovery – recuperation systems that provide fresh air without losing energy.
- Installation of renewable energy sources – photovoltaic panels, solar collectors or heat pumps, which reduce dependence on traditional energy sources.
Each of these measures contributes to improving the building's energy efficiency, but their scope depends on the technical condition of the facility and the investor's budget.
Which thermal modernisation measures are the most effective?
Not all thermal modernisation measures bring the same effects. Here are the most effective measures worth considering:
- Insulation of external walls – this is the most frequently chosen measure, which can reduce heat loss by as much as 30%. It is worth using materials with high insulating properties, e.g. graphite polystyrene.
- Replacement of window and door joinery – energy-efficient windows and doors reduce heat loss and eliminate draughts.
- Modernisation of the heating system – replacing an old boiler with a modern one, e.g. a condensing boiler, can reduce energy consumption by as much as 20–30%.
- Installation of mechanical ventilation with recuperation – this system recovers heat from extracted air, which significantly affects the building's energy balance.
- Installation of photovoltaic panels – allows you to produce your own energy, which reduces electricity bills and increases energy independence.
These measures can be combined to achieve maximum benefits, both financial and ecological.
Where to start the thermal modernisation of a building?
The first step in the thermal modernisation of a building is to carry out an energy audit. This is a professional assessment of the technical condition of the facility, which indicates where the greatest heat losses occur and which measures will bring the greatest benefits. The audit also makes it possible to determine the investment costs and the expected savings.
The next step is to draw up a thermal modernisation plan. At this stage it is worth consulting experts who will advise which solutions will be the most effective in a given case. Next, a contractor should be selected – a company with experience in delivering thermal modernisation projects. It is also important to check the available grants, e.g. from the “Czyste Powietrze” (Clean Air) or “Moje Ciepło” (My Heat) programmes, which can significantly reduce investment costs.
What stages does comprehensive thermal modernisation of buildings include?
Comprehensive thermal modernisation of buildings is a process consisting of several key stages. Each of them requires careful planning and execution to achieve the intended effects.
Stage 1: Energy audit
The audit is the basis of every thermal modernisation. It involves a detailed analysis of the technical condition of the building, including insulation, the heating system and ventilation. On the basis of the audit a report is prepared, which indicates which measures will be the most cost-effective.
Stage 2: Thermal modernisation design
At this stage a detailed action plan is drawn up, taking into account the choice of materials, technologies and the works schedule. The design should be tailored to the individual needs of the building and the investor's budget.
Stage 3: Execution of thermal modernisation works
This is the most important stage, in which the planned measures are carried out. Depending on the scope of works, it may include insulation of walls, replacement of windows, modernisation of the heating system or installation of photovoltaic panels. It is important that the works are carried out by experienced specialists.
Stage 4: Acceptance and settlement of the investment
After the works are completed, technical acceptance is carried out, which confirms that all measures have been carried out in accordance with the design. At this stage it is also possible to settle grants or thermal modernisation tax reliefs.
What benefits does thermal modernisation of a building bring?
Thermal modernisation of a building is an investment that brings many benefits, both financial and ecological. What are the most important ones?
- Lower energy bills – Thanks to better insulation and modern heating systems, energy consumption falls by as much as 30–50%.
- Increased comfort of use – Eliminating thermal bridges and draughts makes the building warmer in winter and cooler in summer.
- Environmental protection – Reducing CO2 emissions and energy consumption contributes to the fight against climate change.
- Raise the property value – Buildings after thermal modernisation are more attractive to potential buyers or tenants.
- Access to grants and tax reliefs – Programmes such as “Czyste Powietrze” (Clean Air) or “Moje Ciepło” (My Heat) can cover as much as 50% of the investment costs.
At Grupa KDM we have for years been delivering thermal modernisation projects that combine the latest technologies with care for the environment. Thanks to our experience and comprehensive approach, we help our clients achieve maximum benefits from every investment.
