This means you can cover your shed or any flat roof in one piece making it ideal for complete shed roof replacement or installing a new shed roof! garden room workshop: part 11. epdm & fascias. This involves covering the roof in epdm and then adding a frame that can be filled with soil and planted with a mix of grass and flower seeds. not only does this give you a beautiful shed roof all year rounds, but the plants help filter the air. just remember you may need to weed and water your shed roof from time to time.. Shed roofs are much smaller and more manageable, and they tend to be much closer to the ground than house roofs. it's also not such a big deal if you end up with some leakage in a shed roof (but you'll try to avoid that in any case). the same roofing materials used on homes (namely, asphalt shingles) make perfectly suitable shed roofs..