SF40
UK’s top performing multi-foil insulation
LABC Registered System Approval for U-values From 0.14
Maximum insulation, minimum space
Lightweight, flexible & easy to install
U-value solutions as low as 0.1
Ideal for new build or retrofit
Fits over or under rafter
Made from 40% recycled materials
LABC Registered System Approval
SuperFOIL SF40 is the UK’s highest performing multi-layer foil insulation, use to reach levels 3, 4, 5 and 6 of the Code for Sustainable Homes. SF40 has radiant reflective properties, reflecting unwanted heat from solar gain in summer and enhancing insulation in winter. SF40 also has air barrier properties and can control air movement for further energy efficiencies. In situ energy assessment indicates that multilayer foils have benefits over traditional (non reflective) insulation. SuperFOIL SF40 maximises roof and wall insulation within an efficiant amount of space. Request a sample pack!
- Tested ‘R’ Value 3.58
- LABC Registered System
- Air seal & radiant barrier
- Total coverage 15m2
- Total thickness 65mm
- Total layers 36
- Horizontal or vertical fitting
- 25mm air gap required
- Cut with knife or scissors








