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.



ApplicationAngle Range (o)Installed Density (kg/m3)Thermal Conductivity (W/mK)Euroclass Reaction to Fire ClassificationPack Dimensions
Enclosed rafter spaces0-2519.00.038A11200x550x250
Enclosed rafter spaces and timber frame stud walls0-9026.00.034A11200x550x250
Enclosed rafter spaces and timber frame stud walls0-9030.00.033A11200x550x250

Certification & Memberships

Eurofins Gold
Euroclass A1 Reaction to Fire Classification
Green Guide Rating A+
CE Marking
Red List Free
EN 15804
Made in Britain