Home > Companies > Novia Ltd > Novia® Reflex XL Breathable Reflective Wall Membrane

High quality, reflective breather membrane for use in all insulated frame applications. The material complies with EN 13859-1. When used in suitable constructions (e.g. facing an airgap), this membrane will deliver improved R and U-Values (thermal resistance and thermal transmittance). Novia Reflex also complies with EN 13501-1 fire classification grade E.


  • Tri-laminate membrane with low emissivity and high reflectivity.
  • High waterproofing properties to EN 1928 W1.
  • UV resistance: Install as per BS 5534: 2014 + A2 2018 UV guidance.
  • High tensile and nail tear strength.
  • Cost effective.
  • Applied with a transparent coating which reduces the corrosion and avoids a loss of reflectivity over time.
  • Cooler in summer and warmer in winter.
  • Complies with European Construction Products Regulations (CPR) rules.
  • CE compliant to EN 13859-1.

Consult manufacturer's literature to view installation guidelines.

Standard product features

Standard width:

2.7 m.

Roll length:

100 m.

Roll weight:

39 kg.

Technical data:

  • Weight: 128 g/m².
  • Tensile strength (MD/ CD, to EN 12311-1): 250/150 N/50mm.
  • Elongation (MD/ CD, to EN 12311-1): 70/65%.
  • Tear resistance (MD/ CD, to EN 12310-1): 112/150 N.
  • Resistance to air penetration (to EN 12114): 0.009 m³/m²h.50.pa.
  • Sd value (to EN 12572): 0.12 m.
  • Resistance to water penetration (to EN 1928): Class W1.
  • Resistance against fire (to EN 13501-1): E Class.
  • Temperature resistance: -40–100°C.
  • UV resistance: One month (protect from heavy weathering).
  • Emissivity (to EN 12898): 0.22.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-65-50/323 Vapour permeable sheets

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Novia Ltd


+44 (0)1622 678952

Product reference

Novia® Reflex XL Breathable Reflective Wall Membrane


[Novia Breather Membrane Lap Tape]
Single sided, for standard installations.
[Novia® Double-Sided Adhesive Tape]
Provides a greater emphasis on air-tightness.

Manufacturer details

Unit 12,
Heronden Road,
Parkwood Industrial Estate,
Kent, ME15 9YR
Tel +44 (0)1622 678952
Fax +44 (0)1622 679025
NBS Plus
Other content by this manufacturer:
Company Overview Downloads (9) Products (22)