stonemason 16

How to Clean Brick Walls?

Table of Contents
    Add a header to begin generating the table of contents

    Brick walls can increase the longevity and aesthetic appeal of a building, but they need to be maintained regularly to keep their lustre. The ability to clean brick walls efficiently is a must-have for any homeowner, property manager, or do-it-yourselfer. 

    This article discusses cleaning and revitalising brick walls. Let's begin!

    What Is Brick?

    While the term "brick" is technically reserved for a moulded clay construction unit, modern usage can refer to any stone or clay unit connected with cementitious mortar.

    Bricks are 1–4 inches thick and 8 inches long. The dimensions also change from one country to another. "Blocks" refer to the larger building units made of stone or clay for foundations.

    Types of Bricks

    In contemporary building practises, bricks are classified according to the materials they are made from and how they are produced. Here are some of the most popular categories that fall under this umbrella.

    Burnt Clay Bricks

    Burnt clay brick is one of the oldest known construction materials, and it was used to build many of the world's oldest structures. Moist clay is squeezed into moulds and then dried and fired in kilns to create classic burnt clay bricks. These blocks seem like solid, rusty hunks of dried clay.

    Burned clay bricks are typically sold in four quality levels. Burned clay bricks are the best there are because of their great quality and longevity. These high-end burnt clay bricks are more expensive than their standard-quality counterparts because they are immaculate.

    Rendering or plastering with mortar is required for walls constructed with burnt clay bricks. Bricks made from fired clay are used for a wide variety of structural components, including walls, bases, and columns.

    Sun-dried clay or Mud Bricks

    One of the earliest types of bricks, sun-dried clay bricks (sometimes called mud bricks), are also one of the least lasting. Mud is baked in the sun using a mould to create sun-dried bricks. The dried mud loaves are stacked and held together with yet more mud. Traditional adobe architecture features massive mud brick walls.

    Sand Lime Bricks

    Sand, fly ash, and lime are the three main ingredients in making sand lime bricks. Colourant pigments can be applied as well. Bricks are made by pressing the substance into moulds. 

    Unlike burnt clay bricks, the components of sand lime bricks don't fuse until the bricks are wet and then dried under heat and pressure. These sand lime bricks have benefits like:

    • Their consistency in form makes for an improved appearance without the added work of plastering.
    • They have remarkable durability for use in bearing constructions.
    • They lack the typical crimson hue and instead are a neutral grey. For purely aesthetic reasons, various colours can be added.
    • Construction sites can get away with using less mortar.
    • The precision and straightness of the edges facilitate building.
    • They do not give off any mineral or salt efflorescence.

    Sand lime bricks are versatile building materials that can serve as foundations, walls, or even decorative features depending on the colour pigment used to coat them.

    Fly Ash Clay Bricks

    Bricks made from fly ash, a byproduct of burning coal, are burnt at temperatures of around 1,832 degrees Fahrenheit during production. Due to the high calcium oxide content and subsequent expansion upon contact with water, this brick is also called self-cementing. 

    This propensity for growth, though, can also lead to a "pop-out" failure. Compared to clay or concrete brick, fly ash clay brick is lighter.

    Main uses of fly ash clay brick:

    • Foundations and retaining walls
    • Columns Anywhere heightened fire safety is called for

    Fire Bricks

    Line extremely high-temperature spaces with fire bricks, also known as refractory bricks. Use fire bricks in high-heat environments including kilns, barbeques, furnaces, chimneys, fireplaces, and pizza ovens thanks to their high silica and aluminium oxide concentration and high firing temperature.

    stonemason 15

    Guides to Brick Cleaning: Indoor and Outdoor Surfaces

    A brick wall may be a stunning focal point anywhere in or around a home. Brick is prized and typically left unfinished since no other material can match its raw texture and earthy tones. 

    Bricks are beautiful in an architectural design, but unfortunately, they aren't always easy to maintain. 

    While frequent wiping can reduce surface dirt, external brick walls exposed to the weather are especially susceptible to mould and other fungi. They must be cleaned regularly to maintain their attractiveness.

    On the other hand, fireplace brick used indoors will become caked in soot and need a different cleaning method. 

    Methods for Cleaning Interior Brick

    Brick fireplaces and brick mantelpiece surrounds are common in older homes, whereas brick veneer is more typically utilised in modern construction. You will eventually need to clean the brick no matter where or how it is used in your interior design. Thankfully, cleaning internal brick is far simpler than cleaning external brick and can be done with common household items and the straightforward procedure outlined below.

    Get Rid of the Dust and Grime

    This is crucial because the cleaning solution will transform the trash into sludge if it is not removed first. Interior brick can be broom-swept, wiped with a dry dust cloth, or vacuumed. Vacuuming is the most recommended method since it removes dirt and dust from the brick's crevices and the grout. 

    Using the Cleaner

    If you want to clean the brick properly, the first rule is to never apply the product or solution directly to the brick. Bricks absorb liquid cleansers due to their porous structure, which can cause discolouration over time. Therefore, preemptively mistake the brick surface with plain water before washing it with a cleaning solution. This film of moisture blocks the pores from coming into contact with the cleanser.

    Add water and a few drops of mild dish soap to a 1-litre spray container. Since you don't want the solution to be excessively soapy, this solution should be moderate. Indoor brick can also be cleaned with 90% water and 10% vinegar. Scrub the brick with a wet masonry sponge and your prefered homemade cleaner to eliminate grime, dirt, and stains. Scrub the remaining bricks while rinsing the cleaning instrument as necessary.

    Cleanser Off With a Rinse

    No matter the cleaning solution's mild, you shouldn't leave it on the brick for too long. Cleaning brick on the inside with a do-it-yourself solution requires immediate rinsing. Wipe the brick with a damp sponge or dust cloth to remove the cleaning solution. After that, the brick can dry in the air and return to its original state.

    FAQs About Masonry

    The frequency depends on your location and environmental factors. In most cases, an annual cleaning should suffice, but areas with heavy pollution or moss may require more frequent cleaning.

    Sealing brick walls with a brick sealer can help prevent future staining and water penetration, but it's not always necessary.

    Protect nearby plants from cleaning chemicals or excessive water by covering them with plastic sheeting or wetting them thoroughly before cleaning.

    A wire brush can be used for stubborn stains or paint removal, but be gentle to avoid damaging the brick's surface.

    Yes, for extensive or difficult cleaning tasks, or if you're unsure about the proper approach, it's advisable to consult a professional brick cleaning service for safe and effective results.

    Methods for Washing Exterior Brick

    The more difficult part of cleaning is upon us now. Exterior brick cleaning works best with a pressure washer. All you have to do is plug in this powerful machine, which will do the rest of the brick cleaning. Of course, you'll need some training and experience to use it properly and effectively.

    It's also important to note that particularly old or fractured brick in areas should not be pressure washed outdoors. This is because weathered brick can be easily blasted away into smaller fragments. A pressure washer best removes mould, algae, and unclean stains from modern brick outdoor features. Pressure washing is a great technique to restore your home's curb appeal and revitalise its outside features.  

    Prepare the Cleaning Agent.

    If you have a pressure washer, use pressure washer soap instead of trying to devise your cleaning solution. This is because the detergents designed for use in power washers are effective against the dirt, mould, and mildew typically found in outdoor settings. Before adding water to the pressure washer's reservoir, make sure to consult the instructions for using the device.

    Apply the Cleaner

    Now that the washer is full, turn the water pressure down to its lowest setting and spray the detergent in. From the top of the block to the bottom, spray 3-4 feet horizontally. Clean in stages will make you less likely to forget any locations. Always apply continuously rather than pausing to concentrate on a specific spot. This is because brick can be broken under sustained pressure, especially old brick. In addition, the nozzle's distance from the surface should be several feet or as the handbook directs. Wait at least 5 minutes after applying the cleaning solution before proceeding.

    stonemason 13

    Rinse the Brick

    Once you've cleaned the brick and given the cleaner ample time to set, you can refill the pressure washer tank with clean water. Start at the top and work your way down to remove the cleaning solution. Outdoor brick should be rinsed at 50 PSI. Before checking for missing spots or stains, rinse the brick and let it dry completely.

    Remove Any Stains from the Brick.

    The brick should dry completely before any spot treatments are attempted. Algae, mould, and mildew can leave unsightly stains on exterior brick that are difficult, if not impossible, to remove with a pressure wash. If you want to remove these stains successfully, try the following methods:

    • Protect your hands, face, and eyes using a mask, rubber gloves, and safety glasses.
    • The brick can be cleaned with a shop vacuum or broom.
    • The ratio of chlorine bleach to warm water for a cleaning solution is one cup to one gallon.
    • Wet the stained area by misting it with ordinary water.
    • Sponge the stained brick with the stain remover solution to eliminate the stain.
    • Gently clean the stain with a nylon brush in circular strokes.
    • Rinse the brick with a yard hose or bucket after stain removal.

    There are several factors to consider when planning how to clean brick, such as the best tools, cleaners, and techniques and whether the brick will be cleaned indoors or outside.

    Conclusion 

    Brick walls are a crucial component of a building's structure, providing durability and aesthetic appeal. They can be made from various materials, including burnt clay bricks, sun-dried clay or mud bricks, sand lime bricks, fly ash clay bricks, and fire bricks. Burnt clay bricks are the oldest known construction materials and are used for walls, bases, and columns. Sun-dried clay bricks are the least lasting and are created by baking mud in the sun. Sand lime bricks are made from sand, fly ash, and lime, with colorant pigments added. They have a neutral grey color and can be used as foundations, walls, or decorative features. Fly ash clay bricks are lighter and used for foundations, retaining walls, columns, and fire safety. Fire bricks are used in high-heat environments like kilns, barbeques, furnaces, chimneys, fireplaces, and pizza ovens.

    Brick walls are a beautiful architectural feature, but they are not always easy to maintain. External brick walls exposed to weather are susceptible to mold and other fungi, and they must be cleaned regularly. Indoor fireplace bricks need a different cleaning method due to the soot they can accumulate. Regular cleaning is essential for maintaining the appearance and longevity of brick walls.

    Cleaning brick is a common task in both indoor and outdoor settings. To clean interior brick, first remove dust and grime by sweeping, wiping, or vacuuming the brick. Use a mild dish soap and water solution to clean the brick surface, avoiding excessive soapiness. Rinse the brick with a damp sponge or dust cloth, and allow it to dry in the air.

    For exterior brick cleaning, use a pressure washer to remove mold, algae, and unclean stains from modern brick outdoor features. Prepare the cleaning agent by using pressure washer soap instead of trying to devise a cleaning solution. Apply the cleaner by spraying it 3-4 feet horizontally, ensuring a distance of several feet from the surface. Wait at least 5 minutes before proceeding.

    Rinse the brick with clean water, starting at the top and working your way down. Outdoor brick should be rinsed at 50 PSI before checking for missing spots or stains. Remove any stains from the brick by protecting your hands, face, and eyes, using a shop vacuum or broom, and using a stain remover solution. Wet the stained area with ordinary water, sponge it with the solution, clean it with a nylon brush, and rinse the brick with a yard hose or bucket.

    When planning brick cleaning, consider the best tools, cleaners, and techniques, as well as whether the brick will be cleaned indoors or outdoors.

    Content Summary:

    • Brick walls can increase the longevity and aesthetic appeal of a building, but they need to be maintained regularly to keep their lustre.
    • The ability to clean brick walls efficiently is a must-have for any homeowner, property manager, or do-it-yourselfer.
    • This article discusses cleaning and revitalising brick walls.
    • While the term "brick" is technically reserved for a moulded clay construction unit, modern usage can refer to any stone or clay unit connected with cementitious mortar.
    • In contemporary building practises, bricks are classified according to the materials they are made from and how they are produced.
    • Burnt clay brick is one of the oldest known construction materials, and it was used to build many of the world's oldest structures.
    • Rendering or plastering with mortar is required for walls constructed with burnt clay bricks.
    • Bricks made from fired clay are used for a wide variety of structural components, including walls, bases, and columns.
    • One of the earliest types of bricks, sun-dried clay bricks (sometimes called mud bricks), are also one of the least lasting.
    • Traditional adobe architecture features massive mud brick walls.
    • Their consistency in form makes for an improved appearance without the added work of plastering.
    • They have remarkable durability for use in bearing constructions.
    • Construction sites can get away with using less mortar.
    • The precision and straightness of the edges facilitate building.
    • Sand lime bricks are versatile building materials that can serve as foundations, walls, or even decorative features depending on the colour pigment used to coat them.
    • Compared to clay or concrete brick, fly ash clay brick is lighter.
    • Main uses of fly ash clay brick: Foundations and retaining walls Columns Anywhere heightened fire safety is called for Fire Bricks Line extremely high-temperature spaces with fire bricks, also known as refractory bricks.
    • Use fire bricks in high-heat environments including kilns, barbeques, furnaces, chimneys, fireplaces, and pizza ovens thanks to their high silica and aluminium oxide concentration and high firing temperature.
    • A brick wall may be a stunning focal point anywhere in or around a home.
    • Bricks are beautiful in an architectural design, but unfortunately, they aren't always easy to maintain.
    • While frequent wiping can reduce surface dirt, external brick walls exposed to the weather are especially susceptible to mould and other fungi.
    • They must be cleaned regularly to maintain their attractiveness.
    • On the other hand, fireplace brick used indoors will become caked in soot and need a different cleaning method.
    • Brick fireplaces and brick mantelpiece surrounds are common in older homes, whereas brick veneer is more typically utilised in modern construction.
    • Interior brick can be broom-swept, wiped with a dry dust cloth, or vacuumed.
    • If you want to clean the brick properly, the first rule is to never apply the product or solution directly to the brick.
    • Therefore, preemptively mistake the brick surface with plain water before washing it with a cleaning solution.
    • Add water and a few drops of mild dish soap to a 1-litre spray container.
    • Indoor brick can also be cleaned with 90% water and 10% vinegar.
    • Scrub the brick with a wet masonry sponge and your prefered homemade cleaner to eliminate grime, dirt, and stains.
    • Scrub the remaining bricks while rinsing the cleaning instrument as necessary.
    • No matter the cleaning solution's mild, you shouldn't leave it on the brick for too long.
    • Cleaning brick on the inside with a do-it-yourself solution requires immediate rinsing.
    • Wipe the brick with a damp sponge or dust cloth to remove the cleaning solution.
    • After that, the brick can dry in the air and return to its original state.
    • The more difficult part of cleaning is upon us now.
    • Exterior brick cleaning works best with a pressure washer.
    • All you have to do is plug in this powerful machine, which will do the rest of the brick cleaning.
    • This is because the detergents designed for use in power washers are effective against the dirt, mould, and mildew typically found in outdoor settings.
    • Before adding water to the pressure washer's reservoir, make sure to consult the instructions for using the device.
    • Now that the washer is full, turn the water pressure down to its lowest setting and spray the detergent in.
    • Wait at least 5 minutes after applying the cleaning solution before proceeding.
    • Once you've cleaned the brick and given the cleaner ample time to set, you can refill the pressure washer tank with clean water.
    • Start at the top and work your way down to remove the cleaning solution.
    • Before checking for missing spots or stains, rinse the brick and let it dry completely.
    • Algae, mould, and mildew can leave unsightly stains on exterior brick that are difficult, if not impossible, to remove with a pressure wash.
    • The brick can be cleaned with a shop vacuum or broom.
    • The ratio of chlorine bleach to warm water for a cleaning solution is one cup to one gallon.
    • Wet the stained area by misting it with ordinary water.
    • Sponge the stained brick with the stain remover solution to eliminate the stain.
    • Gently clean the stain with a nylon brush in circular strokes.
    • Rinse the brick with a yard hose or bucket after stain removal.
    Scroll to Top