The UK’s top performing multi-foil insulation.

36 layers of interlaced material providing a tested ‘R’ value of 3.564

 

Fast & easy installation

Lightweight & flexible

Energy efficient

Tested R Value = 3.564

Ultraslim profile

Compatible under or over rafters

Use to reach CSH levels 3 to 6

 
 
 
 
 
 
find out more

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 3.564
  • High Thermal Performance
  • Air seal & radiant barrier
key features
 
  • Total coverage 15m2
  • Total thickness 60mm
  • Total layers 36
technical
 
  • Horizontal or vertical fitting
  • 25mm air gap required
  • Cut with knife or scissors
installation