GOOT energy-saving building insulation composite boards take fiber-reinforced fire-proof material as the undersurface, and kraft paper, reinforced aluminum foil, aluminum foil or glass tissue as the heat reflecting layer. They are especially suitable for steel structure roof insulation and also could be used for flat roof insulation.

The core material, phenolic foam with closed cell type offers the lowest thermal conductivity (0.02w/m. K) and thermal performance.