The new reality in thermal insulation: What's changing and why
In a period where energy costs are rising and demands for efficient buildings are intensifying, thermal insulation is no longer a simple technical choice.
Mr. Argyris Andreou, President of the Panhellenic Association of Insulation Companies, explains what is changing in the market and what are the critical points that determine modern choices.
External or internal thermal insulation?
The choice is determined by a few but decisive technical parameters, and mainly by thermal bridges. Only external thermal insulation creates a single shell and eliminates them, which is crucial in old and energy-intensive buildings.
Another parameter is humidity: With internal insulation, the dew point is transferred to the wall, increasing the risk of condensation and mold. In addition, external insulation allows the walls to function as a thermal mass, offering a more stable temperature and better thermal comfort. Internal insulation is applied exclusively and only when there are strict restrictions on the view. In all other cases, external insulation is the most reliable and cost-effective solution.
In practice, this means that choosing the appropriate solution is not always obvious and requires proper technical evaluation.
The importance of insulation in large infrastructure projects
In infrastructure projects, insulation is not an additional stage; it is a foundation of strength. We find it in every project that is subjected to intense stress, from water, humidity, pressure or thermal changes.
In tunnels and metro stations, waterproofing is absolutely critical, due to the high hydrostatic pressures. In bridges, insulation protects reinforcement and concrete from corrosion and contraction and expansion, essentially extending the life of the project. The same applies to dams, reservoirs, port facilities and energy or industrial projects, where thermal insulation of networks and equipment is essential for safety and efficiency. Insulation, in these projects, is the “silent mechanism” that ensures that a structure will function as designed, for decades.
Why haven't hybrid systems taken hold yet?
It is more a matter of mentality than technique. Owners, but also many professionals, continue to trust old practices that they have known for years. Then, the market has not adapted to the degree of technical training that these systems require. Hybrid materials need proper study and faithful application of protocols. When training is not sufficient, insecurity is created. There is also the false impression that the initial cost is high. In reality, it is amortized faster, due to lower losses and reduced maintenance costs. Finally, the market needs clearer standards and certifications, so that the professional feels safe. However, as the market is educated and sees results in practice, hybrid systems will become the norm.
How will the thermal insulation market evolve in the coming years?
We are facing a more mature and demanding phase. The need for real savings and stricter energy standards will lead the market to higher quality solutions. The technologies that will dominate are advanced hybrid systems, which combine thermal insulation, waterproofing and high strength. At the same time, there will be a rise in ecological solutions with high breathability and a low carbon footprint. Digitalization will play a major role in thermography, airtightness, energy simulations. The market will choose based on reliability and not just price. Those who invest in certified systems and technicians will be one step ahead.
The biggest problem is not the materials
Progress has been made, but we are not yet at the level required by modern systems. Most problems in projects are due to incorrect application and not to the materials. To improve the situation, the following are required:
- More frequent and targeted technical seminars with real practical training on the construction site.
- Stricter certification of workshops and installers, so that professionals with real knowledge are recognized.
- Informing owners and designers about the correct specifications.
But there is something deeper: State participation is needed. There must be public technical schools exclusively for the insulation sector. It is now a technically complex sector, requiring specialization and practical training. Investment in education means fewer problems, better quality projects and greater credibility for the entire sector.
The correct application and selection of certified systems play a decisive role in the final result.
Motivations and market reality
Energy upgrade programs have helped, but they are not enough to change the market mentality. A policy is needed that emphasizes not only cost but also long-term performance and quality of implementation. Control is equally important: If we do not ensure that projects are carried out to the correct specifications, incentives lose their meaning. Finally, informing citizens is very important. The more they know what proper insulation means, the more the market changes. Incentives are a good start, but to take the next step, a more targeted and mature policy is required.
The role of PSEM in the new era of thermal insulation
PSEM has evolved into an institutional guarantor of quality. It monitors technological developments, issues technical instructions and intervenes to protect professionals and owners from mistakes or wrong choices. In recent years, the Association has invested heavily in education, with seminars, workshops, and workshop certifications. This way, technicians acquire real expertise and not just theoretical knowledge. At the same time, it informs citizens through campaigns and workshops, explaining what proper thermal insulation means and how to recognize a proper application. In a period of great change, PSEM is a reference point for quality, transparency and technical consistency.
