Sogn og Fjordane - Norway , September 2016
In the old days, it was common for Norwegian houses to grow grass on the roof. Cottage roofs were made out of tree bark and to keep it from curling up, the people would put turf on top. The grass held the turf down, keeping it on the roof and during the Summers the grass and weeds shoot and flower beautifully. The turf on the roof was also good for insulation, keeping the cottage warm during winter and cool during summer.