turf-roof
noun1
A roof of a building covered over with turf.
- He thought it was too far to take the cow to the field where she generally grazed, so it struck him he would put her on the roof; the cottage had a turf-roof, and there was a splendid crop of grass growing there.1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 42: