Saint-Gobain Gyproc’s range of RhinoBoard products for walls and ceilings recently achieved a Global Green Tag certification, earning Green Building Council of South Africa (GBCSA) Level B. Gyproc RhinoBoard, MoistureResistant, FireStop, SoundBloc and DuraLine all consist of an aerated or foamed gypsum core encased in up to 100% post-consumer recycled paper liner.