Non-metallic fire-retardant building materials, namely, coated or uncoated chipboards and wood fiber boards; fire-retardant laminated chipboard panels; fire-retardant laminated floors; fire-retardant wood construction components, in particular load-bearing wood-based panels, slabs, joists and decorative moldings for building construction; non-metal fire-retardant window sills; non-metallic fire-retardant compact boards in the nature of laminated sheets and panels, for building purposes, all o...