SF40BB - Combined Breather Membrane

A certified 2-in-1 product, providing a breather membrane and a high-performing radiant barrier — all within a single product.

Features and benefits

• SF40BB is from SuperFOIL’s multifoil range offering a 3 in 1 design, providing high-performance insulation, breather membrane and radiant barrier all in 1 product. 
• The breathable membrane helps to prevent the formation of mould and damp by reducing the risk of condensation.
• The perforated design of the layers maintains breathability throughout the entire product.
• All SuperFOIL Breathable Membrane products are rated ‘W1’ for watertightness, providing a secondary rain barrier. 
• SuperFOIL SF40BB offers thermal performance values of 2.92 R-value for the core, 3.67 R-value for roofs, and 3.98 R-value for walls.
• Can contribute to reaching U-values of as low as 0.10 W/m²K.
• SuperFOIL’s clever design brings more functionality with less product and a slim construction depth. 
• Multifunctional, lightweight and easy to install design that requires no specialist tools and creates minimal wastage. 
• Reaction to Fire (Euroclass) Class E behind plasterboard.
• SuperFOIL SF40BB has undergone rigorous testing and third party certification to comply with the latest building regulations standards for use as part of construction and European regulations such as CE/UKCA.
• SF40BB can be installed in combination with other insulation products.
• All SuperFOIL breathable products are suitable for use in roofs, and walls in new build & retrofits.
• SF40BB is made from up to 40% recycled materials and is fully recyclable at the end of its 50+ year lifespan.

Components:

• Reflective coated breather membrane.
• Eight perforated aluminium coated, reflective foil polyethylene terephthalate (PET) layers.
• Perforated, reinforced heavy outer reflective foil.
• Nine loft quilt layers, 80 g/m².