| AIRTIGHT ROOFING | FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| ISO-CHEMIE GmbH |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Air Barriers | EUROFORM PRODUCTS LTD |
| FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING AVCL | FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Collars | FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Membranes | EUROFORM PRODUCTS LTD |
| FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Pitched Roof | FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| ISO-CHEMIE GmbH |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Sealants | ADSHEAD RATCLIFFE & CO LTD |
| BASF PLC CONSTRUCTION CHEMICALS |
| FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| ISO-CHEMIE GmbH |
| KLOBER LTD |
| PDT SEALING SYSTEMS LTD |
| SAINT GOBAIN ISOVER |
| SARNAFIL LTD |
| SIKA CONSTRUCTION PRODUCTS |
| SIKA ROOFING PRODUCTS - TROCAL |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Systems | EUROFORM PRODUCTS LTD |
| FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| UBBINK ROOFING & BUILDING PRODUCTS |
| AIRTIGHT ROOFING Tapes | ISO-CHEMIE GmbH |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| TECHNIBOND LTD |
| AIRTIGHT ROOFING Vapour Control | EUROFORM PRODUCTS LTD |
| FLAG SOPREMA UK Ltd |
| HERTALAN (UK) LTD |
| ICOPAL LTD |
| KLOBER LTD |
| SAINT GOBAIN ISOVER |
| TECHNIBOND LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
