Both white and graphite EPS can be used to insulate the exterior walls of a house. The main difference is their thermal conductivity, which affects their insulation performance.
Graphite EPS contains graphite particles that improve its thermal insulation properties. At the same thickness, it can provide better thermal performance than standard white EPS. This can be particularly useful when the available insulation thickness is limited.
White EPS is generally more affordable and can still provide effective insulation when the correct thickness is selected and the system is installed properly.
The choice should not be based on price alone. The insulation thickness, thermal conductivity, wall construction, thermal bridges and project requirements should all be considered.
In short, graphite EPS provides better thermal performance at the same thickness, while white EPS can be more cost-effective. In both cases, proper installation is just as important as the material itself.
