Fire resistance and reaction to fire tests of buildings constructions
Santrauka
The paper analyses the construction of roof structures, bearing steel structures covered with fire protection coatings or roof construction fire resistance and reaction to fire also reaction to fire of roof and exterior fire exposure, the effectiveness of the different testing methods. Horizontal structures are important for critical deflections, integrity and overheating, flammability, vertical – and the integrity of overheating, supporting construction – integrity, insulation and the critical strain. Tested a steel bearing structure in bulk effects of temperature, in vertical position. Tested bearing structures have been fully covered with different fire protection coatings (gypsum board, mineral wool board, intumescent paints). Studied the effectiveness of fire protection coatings where there is imbalance in a fire during the test changing the heating regimes. Described reaction to fire parameters of roof constructions. Represented problems and their solutions related with roof coverings of fire-resistance and external fire exposure assessment.