Ondutiss Air 120 Breather Membrane - 1m x 50m

The Onduline Ondutiss Air 120 is a durable, high-vapour breathable membrane designed for use under...

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- Ondutiss Breather Membrane 120Bba Beige 50M X 1M

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B&Q - Ondutiss Breather Membrane 120Bba Beige 50M X 1M

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Product Information

Full details

This guide helps users understand and effectively use the B&Q Ondutiss Air 120 breather membrane. Designed for roofing applications, it provides excellent vapour permeability and weather protection. A key benefit is its ease of installation with printed overlap indicators, saving time and ensuring proper application. However, it's essential to ensure proper overlap according to the guidelines to maintain optimal performance.

All features

Model Part Number	Ondutiss Air 120
Brand	B&Q

Extended Product Information

FAQs

What is the purpose of the Ondutiss Air 120 membrane?

The Ondutiss Air 120 membrane is designed to provide a breathable, waterproof layer under roofing materials, protecting the roof structure from moisture damage.

What are the dimensions of the Ondutiss Air 120?

The membrane is 1 meter wide and 50 meters long.

How do I determine the correct overlap?

Use the printed overlap indicators on the membrane. Ensure a minimum overlap of 10 cm.

Can I use Ondutiss Air 120 with any roofing material?

The membrane is compatible with various roofing materials, including tiles, slates, and metal sheets.

Is the Ondutiss Air 120 suitable for both cold and warm roofs?

Yes, it is suitable for both cold and warm roof constructions.

How do I store the membrane?

Store the membrane in a dry, protected area before installation.

What does BBA certification mean?

BBA certification ensures that the product meets high-quality standards and has been independently tested and approved.

What should I do if the membrane tears during installation?

Repair any tears or damage using a compatible tape specifically designed for roofing membranes. Ensure a secure and watertight seal.

Troubleshooting

Water leaking through the roof.

Check the overlap of the membrane and ensure it is at least 10 cm and properly sealed. Inspect for any tears or damage to the membrane and repair if necessary.

Condensation or moisture buildup in the roof space.

Verify that the membrane is installed with the correct side facing up and that it has adequate ventilation. Check for any blockages preventing the escape of moisture vapor.

Difficulty unrolling the membrane.

Ensure the membrane is stored in a warm environment before installation and roll it out carefully to avoid tears. If necessary, use a roller to flatten the membrane during installation.

Pros and Cons

Pros

High vapour permeability prevents moisture buildup.
Durable and tear-resistant material.
Provides excellent weather protection.
Easy installation with printed indicators.
BBA certified for quality assurance.
Suitable for a range of roofing applications.

Cons

Requires careful attention to overlap during installation.
May require additional accessories for specific roof types.
The initial cost might be higher compared to some alternatives.
Performance depends on correct installation techniques.
Requires suitable weather conditions for optimal application.

Setup, Compatibility & Care

Preparation: Ensure the roof structure is clean, dry, and free of any sharp objects.
Installation: Unroll the membrane horizontally, starting from the eaves and working upwards. Use the printed overlap indicators to ensure a minimum overlap of 10 cm. Secure the membrane using staples or nails.
Compatibility: The Ondutiss Air 120 is compatible with various roofing materials, including tiles, slates, and metal sheets. Ensure compatibility with the specific roofing material and consult the manufacturer’s guidelines for any specific instructions.
Care: Avoid walking directly on the membrane during installation. If the membrane is exposed to sunlight for an extended period, cover it with the final roofing material as soon as possible. Store the membrane in a dry, protected area before installation.