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Novia  |  SKU: NV013

Novia Reflex - Reflective Roof & Wall Breather 1.5m x 50m 75m2

£116.67 Ex VAT
£140.00 Inc VAT
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Improve the R and u-value when used in suitable constructions with the Novia Reflex Reflective Roof & Wall Breather Membrane for use in pitched cold and warm roofs and insulated walls. A metallised polypropylene material allows this Roof and Wall Breather to help improve insulation performance in addition.

Install directly over insulation, boarded roofs or rafters, or on the “Cold” (exterior) side of a structural frame or roof and pair with a Vapour barrier on the “Warm” (internal) side - seal with Novia tapes for best results.

  • Supplied unfolded, in rolls
  • Breathable membrane with maximum waterproofing properties
  • Low emissivity and high reflectivity
  • 1.5m wide
  • meets EN 13859-1 for pitched roofing and EN 13859-2 for walls
  • meets class E EN 13501-1 fire classification
  • Black side features overlap guide lines
  • Suitable for zones 1-5 in the UK for BS 5534 wind uplift with tape
Length:  50m Roll
Thickness: 131gsm
Width:  1.5m
Coverage: 75m2
Resistance to Water Penetration: W1 Class
Reaction to Fire: E Class
Low Temperature Stability (no cracking at): -40°C to +80°C
Emissivity: 0.18ε

 

Data Sheets & Information

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  • Size
    1.5m x 50m
  • Coverage (m²)
    75
  • Thickness
    131gsm
  • Length
    50m
  • Width
    1.5m
  • Material
    4-Layer Metallised Polypropylene

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Frequently Asked Questions

What is a Breather Membrane?

A Breather Membrane is a semi-permeable layer that is designed to allow water vapour to escape from within a building while preventing liquid water from entering. They are installed on the “cold” side of a wall or roof structure (the “outward face” to ensure that the structure remains dry and free from condensation, which can lead to structural damage and poor insulation performance. Particularly in wall structures, they are often used in conjunction with a Vapour Control Layer which is typically used on the interior "warm" side of a wall structure.

Multi Foil Insulated Breather Membrane

Many of our breather membranes are a multi-purpose product that are made of reflective multi foil insulation such as SuperFOIL, which is essentially a multi layer foil insulation that has a breathable surface to function as both a breather membrane and a thin but effective layer of insulation. 

Novia Breather Membranes

Novia are a specialised manufacturer of Breather Membranes designed for a wide range of uses and purposes. Most of their breather membranes are designed for use within a wall structure, though they also offer membranes specifically sized for use in roofing. When choosing a Breather Membrane, it is important that they are chosen in accordance with building regulations specifications. These specifications are in place to account for:

  • An Increase in adverse weather conditions
  • Variance in weather conditions across the country
  • Variance in styles of roofing and wall structures and their breathability

Typically in areas with higher wind resistance, the appropriate Breather Membrane is likely to have a higher tensile strength, to ensure that sagging, tearing or ballooning doesn’t occur after installation. If the structure is likely to be exposed to the elements for some time before exterior facings or roofing is applied, a membrane with higher UV resistance is important to prevent degradation under the elements. Similarly, if a roofing space is unventilated, it may be advised to choose a membrane with a higher vapour permeability to ensure excess condensation does not accumulate.