Flat and low-slope roofs have a short list of popular membrane options, and two names come up again and again: TPO and EPDM. Both are single-ply sheets, both cover big areas quickly, and both can work well. The better one depends on your climate, your building, and how the roof will be used.
If you want a quick side-by-side before you read on, this comparison of TPO vs EPDM roofing covers the...
