This is a list of "UNDERLININGS" products and suppliers.
| UNDERLININGS For Built-Up Roofing | A.PROCTOR GROUP LTD |
| FILON PRODUCTS LTD | |
| ICB GROUP | |
| RADMAT BUILDING PRODUCTS LTD | |
| SOPREMA UK | |
| UNDERLININGS For Torch-On Roofing | ICB GROUP |
| RADMAT BUILDING PRODUCTS LTD | |
| SOPREMA UK | |
| UNDERLININGS For Waterproofing | DELTA MEMBRANE SYSTEMS LTD |
| MAPEI UK LTD - WATERPROOFING AND CONCRETE REPAIRS | |
| NEWTON WATERPROOFING SYSTEMS | |
| RADMAT BUILDING PRODUCTS LTD | |
| SOPREMA UK | |
| UNDERLININGS Special Types: | RECTICEL INSULATION PRODUCTS |