SF40BB - Combined Breather Membrane
Verified by manufacturer 4 months ago
Combined breather membrane and multi-layer foil thermal insulation for roofs and walls, consisting of 19 layers in total.
Application
Suitable for use in new-build, renovation, refurbishment, extension or retrofit projects in pitched and flat roofs, and walls. Can be used in external cladding projects.
Description
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.
General information
Color | Silver |
Finish | Foil |
Material | Foil |
Shape | Other |
Length | 10000 mm |
Width | 1500 mm |
Height | 75 mm |
Warranty description | 25 year |
Uniclass | |
CAWS | P10/148 Multilayer blanket insulation fixed under or above rafters P10/135 Insulation laid across ceiling ties/ joists |
Specification data - Vapour-permeable sheets
Performance criteria | |
Water vapour properties | 0.115 MNs/g. |
Fire performance | Class F. |
Tensile properties | 194 N/50 mm. |
Class (minimum) | W1. |
Recycled content | 40%. |
Material | Foil. |
Weight (minimum) | 20 kg per roll. |
Thickness (minimum) | 75 mm. |
Reflective face | Required. |
Roll size | 1.5 x 10 m. |
Resistance to tearing | 179 N (length); 179 N (width). |
Emissivity | 0.19/0.05. |
Water vapour transmission | 0.023 Sd. |
Flexibility at low temperature | -40°C. |
Thermal performance | Core performance: 2.92 R value. |
Sustainability data
Contains Red List materials | No |
Material | Foil |
Recyclability | Fully Recyclable at the end of its lifespan |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 40 % |
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