Novia 1.5m x 50m Roll Black 115GSM Roof and Wall Breather

Novia Black 115GSM Roof and Wall Breather is a low weight, high performance breather membrane suitable for use as a breathable roof underlay. It is suitable for direct installation over insulation, boarded roofs or rafters. It has an excellent water resistance. Novia Black Breather is suitable for all pitched cold and warm roofs and as a high specification wall breather. The roll is black on one side and white on the reverse with lines for lapping over.

Properties

• Matt finish slip-resistant surface,
• Lightweight and easy to handle,
• Excellent tensile and nail tear strength,
• 3 month UV resistant,
• Highly waterproof,
• Highly vapour permeable,
• Single product for all roofs and walls,
• 3-layer laminate with microporous,
• Recyclable and ecologically harmless,
• Meets EN 13859-1 for pitched roofing and EN 13859-2 for walls,
• Tested for BS 5534 wind uplift requirements.

Uses

• For pitched cold and warm roofs,
• For insulated wall applications.

INSTALLATION

To walls

• Ensure upper layers overlap lower layers.
• Work from the bottom moving upwards and ensuring there are minimum overlaps of 100 mm on the horizontal joints.
• Do not begin a vertical lap joint within 300 mm of a corner,
• Vertical laps should be at least 150 mm.
• Ensure the bottom timber is also protected by an overlap.
• Fix at suitable intervals with galvanised nails, stainless staples or similar permanent fixings.

To roofs

• Ensure upper layers overlap lower layers.
• Work from the bottom moving upwards and ensure there are minimum overlaps.
• The membrane should be overlapped 200 mm on each side of the ridge.
• All vertical overlaps must be situated on a rafter and must be sealed.
• Fix at suitable intervals with galvanised nails, stainless staples or similar permanent fixings.
• At any entry points for services (soil pipes, vents etc.), ensure that the membrane is properly sealed.
• Use of Novia breather membrane tapes.
• Ensure that for wall or warm roof applications, a vapour barrier is installed on the warm side of the insulation.

Note: Do not leave the membrane unnecessarily exposed to weathering, high winds, excessive UV etc. as this may cause damage over time. If you must leave the membrane exposed for extended periods of time, consider the use of suitable temporary protection materials.

CERTIFICATION