Alucushion® / Bubblefoil® FR (Fire retardant grade) is manufactured by a continuous lamination process of low density polyethylene and aluminium foil with sealed bubbles of air between the two outer laminates. The thousands of individually celled air bubbles created during the manufacturing process, form a column of immobilised dry air, effectively countering heat loss through convection and conduction. Add to this the low emissivity and high reflectivity of the aluminium foil surface, and it’s advantages as a heat transfer barrier become obvious. Alucushion® / Bubblefoil® FR (fire retardant grade) is the cost effective solution for most roof insulation applications.


Technical Data

  • Strong, light and flexible with excellent tear resistance
  • Heat stabilized for durability and effective in a temperature range from -20C° to 80°C
  • Non-toxic, inert and vermin proof
  • Waterproof – no membrane necessary under roof tiles or sheeting.
  • Aesthetically pleasing finish with good light reflectance.
  • Acknowledged by the trade as the easiest thermal insulation on the market to install.

Properly installed under normal environmental conditions, Alucushion® / Bubblefoil® FR will last the lifespan of the roof under which it has been installed. Alucushion® FR is tested and evaluated according to SABS 1381 (Materials for Thermal Insulation of Buildings) Part 4: Reflective Foil laminates, rolls, sheets and sections.

Alucushion® / Bubblefoil®FR (fire retardant grade) has been tested by Firelab and found not to cause fire to spread when used as an over-purlin type roof insulation material. The product contains a highly advanced fire retardant, and is tested to the SANS 428 standard (Fire testing of building insulation materials, components and elements used for roofs) as part of SANS 10400 Part T of the National Building Regulations.

Alucushion®/Bubblefoil® FR White Code 2906 – B/B1/2/H only (SP)
Alucushion®/Bubblefoil® FR Double-sided Code 1983 – B/B1/2/H only (SP)
Fire test reports available upon request.

Alucushion® / Bubblefoil®FR White (Code 2906) – 0.99 m²k/w

Alucushion® / Bubblefoil®FR Doublea-sided (Code 1983) – 1.35 m²k/w

Above thermal resistance (R-values) are as tested by the SABS and include air gaps of 25mm. Test reports available upon request.

Material Thickness – 4mm
Roll width – 1250mm
Roll cover – 50m²
Effective coverage – 46m²


As a “One-stop Insulation shop” Insulpro CC can offer insulation solutions across all temperature ranges and applications.


Tel: 011 835 2128 / 29 / 30
Address: 52 5th Street, Booysens Reserve, Johannesburg, 2091


Submission JHB