| Assembly | Attachment Type | Description |
| Case 1 | Mechanical | Screws and plates along membrane seam |
| Case 2 | Induction Welding | Coated insulation plates, inductively heated at installation |
| Case 3 | Adhered I | Membrane and top insulation layer adhered. Screws and plates for bottom insulation layer |
| Case 4 | Adhered II | Membrane and both insulation layers adhered |