Pistol brick
Two types of pistol brick. On the left, laid as a 'soldier' with a deep rebate and downstand that may be used to conceal a concrete toe; on the right, laid as a 'stretcher' which may be used to conceal a supporting steel angle. |
When brickwork is used as a cladding – whether to clad concrete- or steel-framed buildings, or low-rise cavity-wall construction, the bricks must be supported and tied back to the structure. This is often achieved with the use of steel angles, lintels, concrete toes or edge beams. Onto these are placed specially-made ‘pistol’ bricks (or rebated bricks) that conceal the method of support and the mortar bed.
This is due to the rebate cut it into the base and which creates a small downstand that conceals the support and the mortar joint. The result is a flush appearance.
A pistol brick gets its name from its pistol shape.
Pistol bricks can either be laid as stretchers (horizontally) or ‘brick-on-edge (vertically, as ‘soldiers’). The depth of rebate will depend on how the brick is arranged and the supporting construction. For example, when supported on a concrete toe that is 50mm deep, the rebate that will be cut into a soldier brick will be 50mm + 10mm (mortar joint) = 60mm deep. If a standard brick length is 215mm, this will leave a brick ‘body of 155mm. Between every third or fourth brick, there must usually be some form of metal tie restraint to tie the bricks back to the structure.
Because pistol bricks are special bricks and involve a change from normal brick dimensions, they involve first, special manufacture (and so higher costs) and second, a longer lead-in period until they can be delivered to the site. These factors must be weighed-up by the designer against the importance placed on the finished effect.
When considering whether to opt for pistols or any other type of brick, specifiers should consult with the brick manufacturer to ensure that what they propose can be feasibly manufactured in the timeframe required and for the available budget, and that it embodies no obvious in-use failure points.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
The benefits of writing articles for your organisation
How to create a profile for your organisation and publish for free.
No Falls Week. The importance of safe working at height
What to expect and what is on offer to avoid accidents.
Scottish Government action to reach net-zero targets
Retrofit expert group highlight critical actions needed.
A forward thinking, inclusive global community of members.
From engineered product life-spans, to their extension.
Circular economy in the built environment
A brief description from 2021. Where are we now?
Mental Health Awareness Week with ABS
Architects Benevolent Society programme of activity.
CLC publishes domestic retrofit competency framework
Roadmap of Skills for net zero.
May 13-19: Moving more for our mental health.
Understanding is key to conservation.
Open industry engagement survey seeks responses
Institutions and the importance of engagement.
National Retrofit Hub unveils new guide
Digital Building Logbooks and Retrofit: An Introduction.
Enhancing construction site reporting efficiency
Through digitisation and the digital revolution.
Noise in the built environment
BSRIA guide TG 20/2021.
17,000 people suffer conditions as a result of exposure to excessive noise at work.
Turning down the noise: Auditory health
A pervasive risk with far-reaching consequences.
Getting the most out of heat pumps and heating
How heat pumps work and how they work best.
Electrotechnical excellence, now open for entries.