Fire Safety Science Digital Archive

In the paper is described a number of test series where the influence of the wind velocity on the fire spread along the external surface of a roof has been studied. Different types of roof coverings and insulating materials within a wide range of combustibility properties have been studied. The results show that the spread of flame is fairly -independent of these properties if the covering material is glued t o the roof over its entire surface. For point-wise (mechanically) fixed roof covering materials, however, the fire spread i s rapid and the damages extensive. The reason seems t o be that the fire can take place and spread a1 so in the space under the covering material.