Home > Companies > Novia Ltd > Novia Ultra+ Breather Membrane

An entry-grade, versatile, dual approved and ultra-low cost breather membrane for use in pitched cold and warm roofs and insulated wall applications. The material meets EN 13859-1 for pitched roofing and EN 13859-2 for walls. The product has good water resistance, high breathability and is lightweight and easy to handle. Novia Ultra+ is coloured grey on one side and white on the other, but with no text or images on either side, except a 150 mm overlap line. For higher specification applications, refer to Novia Black, Black Pro or Novia Reflex breather membranes. Novia Ultra+ has been manufactured to comply with new mandatory CE marking requirements, introduced under the 2013 Construction Products Regulations.


  • Low-cost entry-grade roof breather.
  • Waterproofing membrane.
  • Highly vapour permeable.
  • Single product for all roofs and walls.
  • Three layer laminate with microporous core.
  • Good tensile and nail tear strength.
  • Grade E (fire).
  • CE compliant to EN 13859-1 (roofs) and EN 13859-2 (walls).
  • Recyclable and ecologically harmless.
  • Install as per BS 5534:2014 + A2: 2018 UV guidance.
  • To be installed with Novia speciality tape.

Standard product features


  • PP – non woven.
  • Breathable microporous film.
  • PP – non woven.

Standard width:

1.5 m.

Roll length:

50 m.

Technical data:

  • Weight: 95 g/m².
  • Tensile strength MD/CD: 210/105 N/50mm.
  • Elongation MD/CD: 65/70%.
  • Tear resistance MD/CD: 75/90 N.
  • Resistance to air penetration: 0.045 m³/m²h.50.pa.
  • Water vapour transmission properties: 0.02 m.
  • Resistance to water penetration: W1 Class.
  • Resistance against fire: E Class.
  • Stability to low temperature: -40°C.
  • UV resistance: Install as per BS 5534:2014 + A2: 2018 UV guidance.

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 Ultra+ Breather Membrane


[Novia Breather Membrane Lap Tape]
[Novia Double-sided Adhesive Tape]

Manufacturer details

Unit 12,
Heronden Road,
Parkwood Industrial Estate,
Kent, ME15 9YR
Tel +44 (0)1622 678952
Fax +44 (0)1622 679025
NBS Plus
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