Economically profitable flat roof system, based on the combination of thermal insulation layers from mineral fiber insulation and extruded polystyrene, supported by the trapezoidal profile, accompanied by the vapor barrier and PVC foil as the main hydro insulation layer. Combination of thermal insulation properties of the polystyrene and fire performance of the mineral insulation determine this system to be used for most of flat roof structures on objects with standard technical requirements.
Performance and characteristics:
• Thermal performance: thermal transmittance coefficient Uᴅ for various combinations of thicknesses of mineral fiber insulation and EPS)
• Fire resistance classification of this system for flat roofs is REI 30