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SF40BB - Combined Breather Membrane

Verified by manufacturer 4 months ago

SuperFoil Insulation

Combined breather membrane and multi-layer foil thermal insulation for roofs and walls, consisting of 19 layers in total.

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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

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

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.
Roof performance: 3.54 R value.
Wall performance: 3.76 R value.

Sustainability data

Contains Red List materials

No

Material

Foil

Recyclability

Fully Recyclable at the end of its lifespan

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

40 %

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