Movement Joints in Brickwork, Meaning, Purpose, and Use
Understanding Movement Joints in Brickwork
Movement joints in brickwork are planned gaps built into masonry to allow for natural movement caused by temperature changes, moisture variation, and structural settlement. These joints prevent stress from building up within the brickwork, helping to avoid cracking and long term damage.
Movement joints are a standard feature in modern construction and play a critical role in maintaining the durability of brick structures.
Purpose of Movement Joints in Brickwork
The main purpose of movement joints is to control and accommodate movement safely within a wall. Brickwork expands and contracts over time, and without suitable joints this movement can lead to visible cracking or failure.
Key reasons movement joints are used include:
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Allowing for thermal expansion and contraction.
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Absorbing movement from structural settlement.
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Reducing stress within large wall areas.
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Preventing uncontrolled cracking.
Correct placement of movement joints protects both structural integrity and appearance.
Movement Joints in Traditional Brickwork
In traditional brick construction, movement joints are typically placed at regular intervals along long walls, at changes in height, and where different materials meet. They are often filled with flexible materials that allow movement while maintaining weather resistance.
Building standards and best practice guidelines usually dictate joint spacing based on wall length and exposure.
Movement Joints in Brick Slip Systems
Movement joints are equally important in brick slip installations. Although brick slips are not structural, they are fixed to substrates that move. Incorporating movement joints helps prevent stress from transferring to the brick slips and pointing.
These joints are often disguised within the brickwork layout and sealed using flexible sealants rather than rigid mortar.
Movement Joints in Brickwork and Slips from Stock
At Slips from Stock, our brick slips are designed to be installed as part of systems that allow for movement. Including movement joints where required helps ensure long term durability and prevents cracking or debonding.
Movement joints in brickwork are a vital design consideration rather than an optional extra. Whether used in traditional masonry or brick slip systems, they provide controlled flexibility that protects the finished brickwork over time.