Blowing Wool - Supafil® 34

Supafil® 34


Masonry cavity walls


Blowing Wool


Supafil® 34 is a glass mineral blowing wool, designed for use in external full-fill masonry cavity walls. It offers thermal conductivity of 0.034 W/mK at the recommended density of 25kg/m3. Supafil® 34 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, subject to certificate requirements.
  • 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.

For historical versions of product documentation, or documents relating to any discontinued products, please contact us with your requirements at [email protected].





Thermal Conductivity (W/mK) Euroclass Reaction to Fire Classification Packs per pallet
0.034 A1 28

Certification & Memberships

Supafil 34 BBA logo - Certificate No: 11/4857 Supafil 34 BBA logo - Certificate No: 11/4857
Eurofins Gold Eurofins Gold
Euroclass A1 Reaction to Fire Classification Euroclass A1 Reaction to Fire Classification
Green Guide Rating A+ Green Guide Rating A+
CE Marking CE Marking
EN 15804 EN 15804
Made in Britain Made in Britain
DECLARE 'Red List Free' DECLARE 'Red List Free'

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