When designing your next low-slope roof assembly, there are a number of single-ply roofing attachment methods to consider. Whether you choose a TPO, PVC, or EPDM membrane, the attachment method you select will typically be influenced by the building type and location, the rest of the roof assembly, and the construction schedule and cost. The most common single-ply roofing attachment methods are mechanical, induction-welded, adhered, and ballasted. Depending on the unique circumstances of your project, it may also make sense to employ a hybrid approach, or a combination of methods. Let's explore the main features, as well as the pros and cons, of each.