Controlled thermal performance

Controlled thermal performance

Cold mountain air and fog suggesting controlled thermal protection

How vapour, air movement and still air affect lightweight thermal protection.

Snow on protective textile surface suggesting barrier performance

Vapour and air barrier

Vapour and air barrier

Dyneema® Composite Fabrics can act as a vapour and air barrier. By limiting moisture vapour transfer and air movement through the material, the composite helps make the internal microclimate more predictable.

Dyneema® Composite Fabrics can act as a vapour and air barrier. By limiting moisture vapour transfer and air movement through the material, the composite helps make the internal microclimate more predictable.

~1 g/m²/24h MVTR

~1 g/m²/24h MVTR

Moisture vapour transmission as low as approximately 1 g/m²/24h means selected Dyneema® composite constructions behave closer to a barrier film than a breathable textile. This helps explain how still air and insulation layers can be protected from vapour movement.

Moisture vapour transmission as low as approximately 1 g/m²/24h means selected Dyneema® composite constructions behave closer to a barrier film than a breathable textile. This helps explain how still air and insulation layers can be protected from vapour movement.

Person in snow conditions representing lightweight thermal protection

Thermal by control

Thermal protection is not only about insulation thickness. It is also about controlling vapour, air movement and the microclimate around the person. Dyneema® Composite Fabrics help create lightweight barrier structures that protect still air and reduce unnecessary heat loss.

Vapour control

Low moisture vapour transmission helps limit how much vapour can move through the material. This supports a more controlled microclimate and helps reduce heat loss linked to evaporation and moisture movement.

Air barrier

Still-air protection

Warmth retention

Person protected in cold conditions

Controls vapour movement.

Thermal by control

Thermal protection is not only about insulation thickness. It is also about controlling vapour, air movement and the microclimate around the person. Dyneema® Composite Fabrics help create lightweight barrier structures that protect still air and reduce unnecessary heat loss.

Vapour control

Low moisture vapour transmission helps limit how much vapour can move through the material. This supports a more controlled microclimate and helps reduce heat loss linked to evaporation and moisture movement.

Air barrier

Still-air protection

Warmth retention

Person protected in cold conditions

Controls vapour movement.

Snow-covered shelter suggesting warmth retention and still-air protection
Snow-covered shelter suggesting warmth retention and still-air protection

Controlled microclimate

For UR® systems, the material value is control: less vapour movement, less unwanted airflow and more stable still air around the person, without relying only on thick insulation.