215mm x 140mm Square Hole Clay Air Brick Buff (9" x 6")

What Is a 215mm x 140mm Clay Air Brick - Buff? 

215mm x 140mm Clay Air Brick in the shade buff, is a durable fired clay ventilation brick designed to promote natural cross-ventilation. Featuring a grid of square perforations, it allows air to circulate freely through building voids and enclosed spaces. This ventilation is crucial in minimising moisture-related and temperature concerns, preventing stagnant air from building up and infiltrating living spaces. 

Highly durable, buff clay air bricks possess a robust compressive strength suitable for withstanding typical loads within surrounding masonry. Their versatile, neutral buff hue works to complement various brick shades and integrates discreetly into existing structures.

These bricks are most commonly utilised within:

• Sub-floor voids: This is the most critical application, helping to remove damp air, manage moisture levels, and significantly reduce the risk of timber decay in floor joists, fungal growth, and condensation build-up beneath suspended floors.
• Other specific ventilation needs: They can also be used to provide airflow to other enclosed areas where their size, depth, and ventilation capacity are deemed appropriate by a designer or regulations.

Applications

• Sub-Floor Ventilation: Providing airflow to the void beneath suspended timber or concrete ground floors in new builds, extensions, and renovation projects.
• Ventilating Other Building Voids: Can be used for other enclosed spaces where passive ventilation is required and its specific dimensions and airflow capacity are suitable.
• Garden Walls & Outbuildings: Sometimes incorporated into garden walls or other external structures for decorative purposes or minor ventilation needs.

Benefits

• Effective Natural Ventilation: The square hole design promotes consistent airflow, aiding in moisture control.
• Durable Clay Construction: Made from fired clay, offering excellent longevity, good weather resistance, and, if specified as frost-resistant (to BS EN 771-1), robust performance against freeze-thaw cycles.
• Traditional Buff Aesthetic: Neutral buff shade can be used to complement surrounding fallow, tawny, beige, brown and tan bricks. Its unobtrusive tone positions it as a highly versatile addition to existing masonry, blending well with various natural stones and render colours. It can also be used to create a contrasting scheme when paired with darker bricks, providing clear visual accents if desired. 
• Helps Prevent Damp & Decay: Essential for ventilating sub-floor voids, mitigating moisture buildup, and protecting structural timbers.
• Natural & Sustainable Material: Clay is an abundant natural resource, offering an environmentally considerate building component.