Soojustust

Soojustust is a term used in architectural and engineering contexts to denote the process of applying insulation to a building, component, or system in order to reduce heat transfer between interior and exterior environments. The aim is to improve energy efficiency, occupant comfort, and resilience to temperature variation.

The word derives from Estonian, where soojustus means insulation, and soojustust refers to the practice or act of insulating. In practice, soojustust covers a range of techniques used in new construction, renovations, and industrial settings to limit heat flow through walls, roofs, floors, and mechanical systems.

Common methods include installing bulk insulating materials in cavities, attaching continuous insulation to exterior or interior surfaces, and applying spray foams or rigid boards made of mineral wool or foam plastics. Reflective barriers and aerogel composites may be used in specialized applications. Moisture control is essential.

Benefits of soojustust include reduced energy consumption for heating and cooling, improved thermal comfort, and greater building durability. Drawbacks can include higher upfront costs, installation sensitivity to moisture, and the need for proper ventilation planning to maintain indoor air quality.

Performance is evaluated by U-value and R-value, and by compliance with regional building codes and energy standards. Effective soojustust requires attention to thickness, continuity, and minimization of thermal bridging at joints and structural elements.