Rigid foam on top of roof sheathing?

Building seasonal off-grid 1 room cabin. Primary reason to insulate the roof is to make the cabin a little cooler in summer and retain warmth from small wood stove in… Building seasonal off-grid 1 room cabin. Primary reason to insulate the roof is to make the cabin a little cooler in summer and retain warmth from small wood stove in…Read MoreGreenBuildingAdvisor