Certificates and Standards
Supafil® 40
- Holds an Agrément certificate by the BBA for use in all exposure zones, including those in very severe areas.
- Suitable for use in wider cavities of up to 125mm. (When treating cavities wider than 125mm please contact our TST to review and assess the suitability for installation with the approved installer prior to works commencing on site. Alternatively, designers should consider use of Supafil 34; BBA 11/485).
- Made with a water-repellent additive to resist moisture ingress.
- Installed by 'Approved Supafil® Installers', using specific blowing machines, hoses and nozzles as part of a system.
Applications
Supafil® 40Blowing Wool
Description & Details
Supafil® 40 is a glass mineral blowing wool, designed for use in external full-fill masonry cavity walls. It offers thermal conductivity of 0.040 W/mK at the recommended density of 18kg/m3. Supafil® 40 is non-combustible with the best possible Euroclass A1 reaction to fire classification.
- Holds an Agrément certificate by the BBA for use in all exposure zones, including those in very severe areas.
- Suitable for use in wider cavities of up to 125mm. (When treating cavities wider than 125mm please contact our TST to review and assess the suitability for installation with the approved installer prior to works commencing on site. Alternatively, designers should consider use of Supafil 34; BBA 11/485).
- Made with a water-repellent additive to resist moisture ingress.
- Installed by 'Approved Supafil® Installers', using specific blowing machines, hoses and nozzles as part of a system.
Masonry cavity walls
Documents
EN
| Product Data Sheet | ||
|---|---|---|
Supafil® 40 Datasheet.PDF /
Sep 2025 /
780.00 KB /
5 pages | ||
| Brochure | ||
|---|---|---|
Knauf Insulation Solutions Guide UK.PDF /
Feb 2026 /
19.75 MB /
167 pages | ||
| Safety Data Sheet | ||
|---|---|---|
Blowing Wool - Safety Data Sheet.PDF /
Feb 2025 /
160.00 KB /
7 pages | ||
| Environmental Product Declaration | ||
|---|---|---|
Knauf Insulation Supafil® 40, Supafil® Party Wall EPD - EN - UK&I.PDF /
Oct 2023 /
780.00 KB /
17 pages | ||
| Sustainability | ||
|---|---|---|
Glass Mineral Wool - BREEAM Helpsheet.PDF /
Feb 2025 /
40.00 KB /
1 page | ||
Declaration of Performance
- Declaration of performance: B0709GPCPR
- Declarations of performance (DoPs), safety data sheets (SDS), and environmental product declarations (EPD) for our offered products can be found via a central Knauf Insulation database.
Certificates
Product Variants & Packaging
Supafil® 40
| Material number | EAN / GTIN | kg/package | Packs per pallet |
|---|---|---|---|
2409790 | 5012061824155 | 17.6 kg | 28 pac/pal |