Gypsum boards are widely used materials to protect timber structures against fire. The start times of charring in the new prEN 1995-1-2 are based on the new Separating Function Method (SFM) as verified by tests. It is known that the failure times of gypsum plasterboards on TFAs are longer when backed by void cavities compared with TFAs with cavity insulation. From testing, it is also clear that the failure times of gypsum plasterboards on massive timber members are considerably longer compared to TFAs with insulation. This paper focuses on the analysis and determination of failure times for gypsum plasterboards Type A, Type DF (GtDF) and gypsum fibreboards (GF) on massive timber structures and void cavities.      «

Gypsum boards are widely used materials to protect timber structures against fire. The start times of charring in the new prEN 1995-1-2 are based on the new Separating Function Method (SFM) as verified by tests. It is known that the failure times of gypsum plasterboards on TFAs are longer when backed by void cavities compared with TFAs with cavity insulation. From testing, it is also clear that the failure times of gypsum plasterboards on massive timber members are considerably longer compared t...     »