External Wall Preparation, Importance, Process, and Best Practice
Understanding External Wall Preparation
External wall preparation is the process of assessing, cleaning, and conditioning an outside wall before installing brick slips or brick slip cladding. Proper preparation ensures that adhesives, backing boards, and brick slips bond correctly and perform reliably over time.
Because external walls are exposed to weather, temperature changes, and moisture, preparation is especially important for long term durability.
Purpose of External Wall Preparation
The main purpose of external wall preparation is to create a stable, clean, and suitable surface for brick slip installation. Poor preparation is one of the most common causes of brick slip failure.
Key reasons external wall preparation is essential include:
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Ensuring strong adhesion between the wall and brick slip system.
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Reducing the risk of moisture related issues.
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Identifying unsuitable or unstable substrates.
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Supporting long term performance in exposed conditions.
Correct preparation helps the entire system work as intended.
Assessing External Wall Conditions
Before installation begins, the condition of the external wall must be assessed. The wall should be structurally sound, free from movement, and capable of supporting the bricbrick slip system.
Common checks include ensuring the surface is clean, dry, free from loose material, and not affected by ongoing damp issues. Cracks, failing render, or unstable masonry must be addressed before proceeding.
Preparing External Walls for Brick Slips
External wall preparation typically involves cleaning the surface to remove dirt, dust, algae, or paint. In some cases, mechanical preparation may be required to achieve a suitable key.
Depending on the wall type, preparation may also include installing a brick slip backing board or cement board to provide a stable base. Primers may be applied where required to control suction and improve adhesion.
External Wall Preparation and Slips from Stock
At Slips from Stock, our brick slips are designed to be installed as part of a properly prepared external wall system. Correct preparation, combined with suitable adhesives, backing boards, and pointing mortar, ensures a durable and weather resistant finish.
External wall preparation is not an optional step. It is a critical part of any successful brick slip installation. Taking the time to prepare external walls correctly protects the investment and ensures the finished brickwork performs and looks its best for years to come.