Labels:cabin | grass | house | mountain | road | sky | soda fountain | tree OCR: The use of snow retention devices originated several hundred years ago in areas of Scandinavia and the Alps. In these cold regions stones and logs were used to increase the friction between snow and roof to retain snow Snow on the rooftop on rooftops This was these Alpine climates was prior 10 the use poob insulator and insulation in building helped to keep the construction. inhabitants warm and comfy
