However roof gutters were used on traditional sod roofed homes at least over entrances, as we show in this sod roof home photo.
A hand-sawn wooden roof gutter or eaves trough was installed, leaving the ends open as we have shown.
You may also notice the steel spikes nailed into rafter tails to keep the sod roof lower dam in place to prevent soil from sliding off of the roof. Other museum-grade sod roofs in The Romsdalsmuseet site in Oslo used carved wooden pegs in these locations, indicating a time when iron spikes were not readily available. You can see a wooden eaves dam peg in the next sod roof photo (below).