Interior thermal insulation is an increasingly popular solution for improvingthermal insulation in homes where it is not possible to intervene externally. Whether in historic buildings, condominium apartments, or architecturally constrained environments, interior insulation makes it possible to reduce energy consumption and increase living comfort, without changing the facade. In this article we will look at how interior insulation works, what materials are most commonly used, and why breathability plays a key role in choosing the right insulation system.
What is indoor thermal insulation
Interior insulation is an insulation system that involves laying insulation materials directly on the interior walls of the building. The purpose is to limit heat loss, keeping the interior temperature more stable during winter and summer. It is mostly used when external intervention is not feasible (e.g., on historic or listed facades).
Interior insulation is an insulation system that involves laying insulation materials directly on the interior walls of the building. The purpose is to limit heat loss, keeping the interior temperature more stable during winter and summer. It is mostly used when external intervention is not feasible (e.g., on historic or listed facades).
Insulation materials are applied in sheets or panels directly to the interior masonry, and then coated with suitable skim coats and finishes. This technique is effective but requires careful planning to avoid condensation and mold problems, especially if the materials used are not breathable.
The advantages of interior insulation
Choosing an interior thermal coat has many benefits
- Energy efficiency: reduces the need for heating and cooling.
- Living comfort: maintains stable indoor temperature and prevents humidity.
- Speed of operation: can be installed room by room, even without leaving the home.
- Ideal solution for constrained buildings: does not change the exterior aesthetics of the building.
- Suitable for partial renovations: ideal for individual apartments or specific rooms.
Be careful, however: if breathable materials are not used, there is a real risk of creating vapor barriers that generate interstitial condensation.
The most commonly used materials for interior coat
Here is an overview of the most common materials forinterior thermal insulation:
- Expanded polystyrene (EPS) and extrudedpolystyrene (XPS): lightweight, easy to install, inexpensive, but not breathable.
- Mineral wool (glass or rock): excellent insulation, fire resistance, good breathability and sound insulation.
- Natural materials: such as wood fiber and cork, breathable and environmentally friendly, but more expensive and delicate.
- Calcium silicate: ideal in humid environments, has good anti-mold properties and regulates humidity.
Almost all of these materials need significant thicknesses (4-10 cm) to ensure good performance and are also poorly breathable: over time they can facilitate the formation of mold and condensation.
Afontermo: the innovative indoor solution
For those seeking an effective, thin, breathable and environmentally friendly interior insulation system, Afontermo is the ideal choice.
🎯 Why choose Afontermo for interior insulation?
- Only a few mm thick for high-efficiency insulation.
- Reflective behavior: repels heat instead of absorbing it.
- Highly breathable: prevents mold and condensation, even on cold or damp walls.
- Environmentally friendly and safe for living environments.
Thanks to its quick application, Afontermo is also ideal for already inhabited rooms. It is perfect for those who want to save on utility bills, keep their homes healthy and improve comfort in every season.
Conclusion
Interior thermal insulation is a smart solution for those who want to insulate without intervening on the facade. The choice of materials is crucial to avoid problems of moisture, mold or inefficiency. With innovative products such as Afontermo, it is possible to achieve high performance with minimal footprint, improving living comfort and contributing to the energy upgrading of the building.
Learn more about Afontermo and Afon Casa’s interior insulation solutions by clicking here
