Abstract
The purpose of this paper is to propose a reduction method of snow load on a roof by snow sliding. Snow sliding is known to be much influenced by the adfreezing force and friction between the snow and the roofing materials. We examined the influence of surface property on roofing materials and the condition of snow on the adfreezing force and friction.
The results may be summarized as follows:
1) The friction was influenced both by the surface roughness of roofing materials and by the snow-water content.
2) The adfreezing force was influenced by the repellent property of materials and the surface roughness.
Therefore, necessary heat capacity should be different with each roofing material to keep snow sliding smoothry .
