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A high quality, versatile, low cost, breather membrane for all pitched cold and warm roofs and insulated wall applications. The material meets EN 13859-1 for pitched roofing and EN 13859-2 for walls. Novia Black has excellent water resistance but still provides high breathability; it is strong yet lightweight and also complies with EN 13501-1 fire classification grade E. The product is completely black on one side, white on the reverse, with no text or images on either side, except a 150 mm overlap line. It is fully compliant with new mandatory CE marking requirements, introduced under the 2013 Construction Products Regulations.


  • Highly waterproof.
  • Highly vapour permeable.
  • Single product for all roofs and walls.
  • Three layer laminate with microporous core.
  • Excellent tensile and nail tear strength.
  • Matt finish slip-resistant surface.
  • Grade E (fire).
  • Install as per BS 5534: 2014 + A2: 2018 UV guidance.
  • CE compliant to EN 13859-1 (roofs) and EN 13859-2 (walls).
  • Tested for BS 5534 wind uplift requirements.
  • Recyclable and ecologically harmless.

General information
Specification data
Product Reference

Novia Black Breather Membrane


Novia Breather Membrane Lap Tape

Novia Double-sided Adhesive Tape

Standard product features


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

Standard width:

1.5 m.

Roll length:

50 m.

Roll weight:

9 kg.

Technical data:

  • Weight: 116 g/m².
  • Tensile strength MD/CD: 250/170 N/50mm.
  • Elongation MD/CD: 60/80%.
  • Tear resistance MD/CD: 150/190 N.
  • Resistance to air penetration: 0.000 m³/m³.h.50.pa.
  • Sd value: 0.05 m.
  • Resistance to water penetration: W1 >250: Class cm.
  • Resistance against fire: E Class.
  • Temperature resistance: -40–80°C.
  • UV resistance: Install as per BS 5534: 2014 + A2 UV guidance.