Insulation for walls – effective heat protection and stable indoor climate

  • Reduces heat loss through exterior and interior walls
  • Reduces thermal bridges and cold wall surfaces
  • High insulation capacity with minimal wall thickness
  • Does not absorb moisture and retains its insulating properties over time
  • Possibility of lower CO₂ footprint with purRECY

Walls form a large part of a building's climate envelope, which means that the risk of heat loss, thermal bridges and poor comfort particularly arises here. When walls are not insulated correctly, energy consumption increases and it becomes more difficult to achieve a stable room temperature – both in new buildings and during renovations. In addition, the indoor climate is negatively affected because cold wall surfaces can lead to moisture and condensation, which in the worst case creates a risk of mold.

At Dan-iso we produce wall insulation based on PUR and PIR, including Dan-isoRECY, which are produced with recycled materials. With these solutions, the building has both high insulation capacity and a low climate footprint, without compromising on durability and functionality.

All new construction has insulated exterior walls that form the building's boundary with the surroundings. If you use highly efficient insulation such as PUR and PIR, you get slimmer walls. This gives more light in the home and better utilization of the space, which means more m2 of living space for the money.

Advantages of PUR and PIR over mineral wool

High insulation capacity with low thickness
PUR/PIR provides the same or better insulation than mineral wool, but with significantly less wall thickness. This saves space in both new construction and renovation.

Moisture-resistant and stable performance
The closed cell structure makes PUR/PIR insensitive to moisture, so its insulation properties are maintained over time – unlike mineral wool, which can lose its effectiveness when exposed to moisture.

Dimensionally stable and long-lasting
The material does not settle, which reduces thermal bridges and ensures stable insulation throughout the building's lifespan.

Sustainable alternative
dan-iso purRECY uses recycled PUR and reduces CO₂ footprint without compromising technical performance.

Why proper wall insulation makes a difference

The primary purpose of wall insulation is to prevent heat from leaking out through the structure.

The insulation capacity of walls is measured, among other things, by the lambda value, which indicates the material's ability to resist heat conduction. The lower the λ value, the better the material insulates. An effective insulation material such as PUR/PIR typically has a low λ value, which helps to reduce heat loss in the wall and lowers the building regulations' requirements for U-values.

Furthermore, it is important to consider how the insulation affects moisture transport and accumulation in the wall structure. Materials with high moisture absorption can compromise the overall structure, which means that the choice of insulation material must be made with an eye to both thermal and building physics. PUR and PIR do not absorb moisture and are therefore highly effective.

Wall insulation with optimal performance

Let us assist you

Do you have questions or need help? Please do not hesitate to contact us - we look forward to hearing from you.

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