Tim Merritt, earthbag enthusiast and reader of our blog, sent us this roof idea from GardenDome.com. Tim is considering using these domes on top of earthbag walls to create more interesting shapes and save labor on the roof. The GardenDome.com website showcases over 60 domes of all different sizes and shapes. You can order their 250 page catalog and CD from their home page. You can view the roof shown below by clicking here.