TSE K 49

TSE K 49 addresses a lightweight panel wall system in which an expanded polystyrene insulation board is held between steel meshes connected by diagonally crossed wire bars. The technical idea behind this type of element is the combination of thermal insulation and structural action in a single wall panel, with performance depending on the composite behaviour of the insulation core and the steel mesh faces.

How the panel system works

Expanded polystyrene is a low-density insulation material with low thermal conductivity, which makes it widely used where light weight and thermal resistance are important. Steel meshes provide reinforcement and help the panel maintain its shape, while also creating a surface that can work with plaster, render, or other finishing layers. The diagonal wire bars serve as connectors that keep the two mesh faces spaced apart and help the assembly behave as one unit.

What this standard helps define

• It identifies the panel’s material make-up: expanded polystyrene board combined with steel mesh reinforcement.
• It distinguishes the product from a simple insulation board or a plain wire-mesh component by focusing on the composite wall system.
• It supports shared terminology for lightweight wall and thermal insulation applications in building materials.
• It provides a technical context for understanding how insulation, reinforcement, and spacing elements interact in panel construction.