Square Hole Clay Air Brick - Buff - 215mm x 65mm - 5 Pack
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B&Q - 215mm X 65mm Square Hole Clay Air Brick Buff (9" X 3")Pack Of 5
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HomebaseBuff Square Hole Clay Air Brick 215 x 65mm 5 Pack
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Product Information
Full details
The B&Q Square Hole Clay Air Brick is an essential component for homeowners and contractors looking to ensure proper ventilation in underfloor voids and cavity walls. Designed for durability and aesthetics, this product provides an effective solution for moisture control, though users should ensure their masonry skills are adequate for professional-grade mortar installation to achieve a seamless, weather-tight finish.
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Extended Product Information
FAQs
Are these bricks suitable for external use?
Yes, they are made from frost-resistant, fired clay specifically designed for external exposure.
What are the dimensions of each brick?
The bricks measure 215mm x 65mm, which corresponds to the standard UK single-course brick size.
How many come in a pack?
This product is supplied as a 5-pack.
Can I paint these air bricks?
While they are designed with a buff finish, they can be painted with masonry paint if desired, though this is not usually necessary.
Do I need a lintel above the air brick?
Standard building regulations apply; if you are replacing a brick in a structural load-bearing wall, ensure you support the masonry above before removal.
Will these bricks rust over time?
No, as they are constructed from high-quality fired clay, they do not corrode or rust like metal alternatives.
Troubleshooting
Mortar staining the surface during installation
Wipe away excess mortar immediately with a damp sponge before it sets to prevent permanent streaking.
Airflow is restricted after installation
Ensure that the interior space behind the brick is not blocked by insulation, debris, or construction materials.
Surface appearing slightly different in color due to dust
Clean the face of the brick with a soft brush and mild soap water to restore the original buff tone.
Pros and Cons
Pros
- High-quality fired clay construction
- Excellent resistance to frost and weathering
- Consistent buff color for professional aesthetics
- Standard dimensions for easy integration
- Promotes healthy airflow to prevent structural moisture damage
Cons
- Requires mortar installation which can be labor-intensive
- Clay is brittle and may crack if struck by heavy objects
- Limited to standard brick course heights
- Requires proper planning to ensure sufficient airflow capacity
Setup, Compatibility & Care
To install, remove the existing brick or create a matching aperture in your wall structure. Use a high-quality, external-grade mortar to bed the air brick firmly into the course, ensuring the square hole pattern is clear of mortar droppings. It is compatible with standard mortar joints and can be used in both new builds and renovation projects. Care is minimal; occasionally inspect the exterior face to ensure the holes are not obstructed by vegetation, debris, or bird nests. A gentle brush with a soft-bristled broom is sufficient to clear any surface grime or dust accumulated over time.