Manthorpe Subfloor Ventilation Airbrick - Black

Name: Manthorpe Subfloor Ventilation Airbrick - Black
Brand: Manthorpe Building Products
SKU: lbrjez3hoe
Price: 2.08 GBP
Availability: InStock

The Manthorpe G930 Airbrick is designed for effective ventilation of cavity walls and under-floor ...

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Manthorpe Building Products Blue/Black Subfloor Ventilation Airbrick - 9Andquot; X 3Andquot;

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Product Information

Full details

The Manthorpe G930 Airbrick is an essential ventilation solution for professional builders and contractors tasked with managing airflow in cavity walls and under-floor voids. Designed for durability and versatility, this unit provides a substantial 6,450mm2 of airflow per brick and is approved for use with gas appliances, ensuring compliance in residential settings. While it offers excellent modular flexibility, users should note that the installation process requires precise mortar application to ensure the molded mortar key is fully utilized for a secure, weather-resistant fit.

All features

Colour	Black
Model Part Number	G930BLB
Brand	Manthorpe Building Products

Extended Product Information

FAQs

Can these airbricks be used for gas appliance ventilation?

Yes, the G930 is specifically designed and rated to be suitable for use with gas appliance ventilation requirements.

What are the dimensions of a single unit?

Each individual airbrick measures 9 inches wide by 3 inches high.

Can I stack more than two units?

Yes, the modular design allows for multiple units to be stacked, provided the masonry opening is sized correctly to accommodate the height.

Does the unit come with a sleeve?

This product is the airbrick itself; you may need to purchase compatible telescopic cavity sleeves separately depending on the wall construction.

Is the material weather resistant?

Yes, the units are made from durable, weather-resistant plastic designed for external exposure and include built-in water deflectors.

Troubleshooting

Airbrick feels loose after installation

Ensure the mortar was pushed adequately into the perimeter mortar key; if gaps persist, point the edges with additional mortar.

Difficulty clipping units together

Check the clip channels for any plastic flash or debris from shipping and ensure the units are aligned at a 180-degree angle before applying even pressure.

Pros and Cons

Pros

Versatile modular stacking capability for custom opening sizes
Suitable for gas appliance ventilation requirements
Durable construction with integrated water deflection
Provides high volume of airflow in a compact 9x3 footprint

Cons

Requires professional mortar finishing for secure installation
Limited to masonry applications
Modular clipping mechanism requires careful handling to ensure perfect alignment

Setup, Compatibility & Care

Installation requires standard masonry skills. The units are designed to be built into the wall during the course of construction.

Ensure the opening is prepared to the required dimensions (standard 9" increments).
Apply a generous layer of mortar around the perimeter to engage with the molded mortar key.
If stacking, clip the units together before setting them into the mortar bed to ensure structural alignment.
Check the face of the brick for alignment with the surrounding brickwork.

For maintenance, periodic inspection is recommended to ensure the grille face remains clear of debris, vegetation, or blockage from exterior garden soil levels.