air brick: meaning, definition, pronunciation and examples
LowTechnical/Construction
Quick answer
What does “air brick” mean?
A perforated brick or block made of clay, plastic, or metal, designed to be built into a wall to allow ventilation while preventing entry of rain, insects, or rodents.
Audio
Pronunciation
Definition
Meaning and Definition
A perforated brick or block made of clay, plastic, or metal, designed to be built into a wall to allow ventilation while preventing entry of rain, insects, or rodents.
Any ventilation unit or grille installed in a building's external wall to provide airflow to prevent dampness, condensation, or gas buildup, particularly in cavity walls, underfloor spaces, or around gas appliances.
Dialectal Variation
British vs American Usage
Differences
The term 'air brick' is standard in British English. In American English, the more common equivalent is 'vent brick', 'foundation vent', or 'weep hole cover', though 'air brick' may be understood in technical contexts.
Connotations
In British English, it carries neutral, practical connotations related to building maintenance. In American English, it may sound slightly British or technical.
Frequency
Much more frequent in UK English, especially in DIY, property, and construction discourse. Rare in general American English.
Grammar
How to Use “air brick” in a Sentence
The [noun] has an air brickWe need to [verb] the air brickAir bricks are made of [material]Vocabulary
Collocations
Examples
Examples of “air brick” in a Sentence
verb
British English
- We need to air-brick the cellar wall to prevent damp.
- The builder air-bricked the extension.
American English
- The contractor vent-bricked the foundation.
- They need to install foundation vents.
adverb
British English
- [Not standard]
American English
- [Not standard]
adjective
British English
- The air-brick ventilation was insufficient.
- Check the air-brick cover.
American English
- The vent-brick installation is code-compliant.
- We offer vent-brick solutions.
Usage
Meaning in Context
Business
Rare, except in property management or construction supply businesses.
Academic
Used in architecture, building science, or civil engineering texts.
Everyday
Used by homeowners, surveyors, or DIY enthusiasts discussing building ventilation.
Technical
Standard term in building regulations, construction manuals, and trade discussions.
Vocabulary
Synonyms of “air brick”
Strong
Neutral
Weak
Vocabulary
Antonyms of “air brick”
Watch out
Common Mistakes When Using “air brick”
- Misspelling as 'airbrick' (should be two words or hyphenated: 'air-brick').
- Using it to refer to any vent, even non-brick-shaped ones.
- Confusing it with a 'breeze block' (cinder block), which is solid.
FAQ
Frequently Asked Questions
Yes, modern air bricks are often made from plastic, as well as traditional clay/terracotta or metal. Plastic ones are lightweight and resistant to frost.
They are usually found just above ground level in external walls, often under floor level (for subfloor ventilation) or in cavity walls to allow airflow and prevent damp.
Blocked air bricks can lead to poor ventilation, resulting in damp, condensation, mould growth, and in extreme cases, a buildup of radon gas or deterioration of wooden floor joists.
No, it is primarily a British English term. In the US, similar items are more commonly called 'foundation vents', 'vent bricks', or 'weep hole covers'.
A perforated brick or block made of clay, plastic, or metal, designed to be built into a wall to allow ventilation while preventing entry of rain, insects, or rodents.
Air brick is usually technical/construction in register.
Air brick: in British English it is pronounced /ˈeə brɪk/, and in American English it is pronounced /ˈɛr brɪk/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this specific term]”
Learning
Memory Aids
Mnemonic
Think of a brick that 'breathes' air. AIR (for ventilation) + BRICK (its shape/material).
Conceptual Metaphor
A BUILDING IS A LIVING BODY (air bricks are like nostrils or pores allowing the building to breathe).
Practice
Quiz
What is the primary purpose of an air brick?