For industrial equipment, insulation should be selected from the operating temperature, thermal conductivity, available space, moisture exposure, fire requirements and installation method, rather than from the material name alone.

Insulation density should be selected according to the required thermal, acoustic, mechanical and installation performance, rather than simply choosing the highest or lowest value.

Rock wool — made from molten basalt rock spun into fibers at 1,500°C — is non-combustible at its core, not through a fire-retardant additive that degrades over time.

Ceramic wool — an alumina-silica fiber spun from molten kaolin clay and alumina at temperatures exceeding 1,800°C — maintains its fibrous structure and insulating performance at continuous operating temperatures up to 1,430°C.

Choosing the right glass wool insulation for commercial buildings requires evaluating thermal conductivity, density, fire resistance, moisture resistance, thickness options, and application requirements.

Before diving into performance metrics, it is worth understanding what these materials are at the structural level — because the structural difference explains virtually every performance difference that follows.