Blowing Wool - Supafil® Frame

Supafil® Frame


Timber frame walls


Blowing Wool


Supafil® Frame is a Glass Mineral Blowing Wool, designed for use in either on-site or offsite timber frame construction, that offers excellent thermal performance. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.

Supafil® Veil is a translucent netting which is stapled to the timber frame to create a cavity into which Supafil® Frame insulation is blown.


  • Awarded the DECLARE 'Red List Free' label. Allows product transparency disclosure that identifies where a product comes from, what it's made of, and where it goes at the end of its life.
  • Multi-purpose product which can insulate a variety of timber frame applications, maximising efficiency.
  • Provides intimate contact between frames, offering a full-fill solution for a wide range of stud depths, centres and void shapes.
  • Can be installed either on-site or off-site, using our innovative Supafil Frame System.
  • Only one product needed which can insulate all timber frame stud applications.



Application Angle Range (o) Installed Density (kg/m3) Thermal Conductivity (W/mK) Euroclass Reaction to Fire Classification Pack Dimensions Packs per pallet
Enclosed rafter spaces 0-25 19.0 0.038 A1 1200x550x250 28
Enclosed rafter spaces and timber frame stud walls 0-90 26.0 0.034 A1 1200x550x250 28
Enclosed rafter spaces and timber frame stud walls 0-90 30.0 0.033 A1 1200x550x250 28

Certification & Memberships

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'