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Maintaining a clean and well-kept metal building is an important part of preserving its appearance and prolonging its life. Properly washing a metal building helps to get rid of dirt, grime, and other contaminants that can accumulate over time. It can also help to prevent rust and corrosion, which can weaken the building’s structure and lead to costly repairs. Regularly washing your metal building is a simple yet effective way to keep it looking its best.

What Do I Need to Wash a Metal Building?

A metal building can be difficult to clean because of its exposed surfaces, but with the right materials, you can get the job done quickly and efficiently. Here are the items you’ll need to wash a metal building.

1. Pressure Washer

A pressure washer is the most efficient way to clean a metal building. It will quickly and effectively remove dirt, dust, and grime from the surface of your building. Make sure to use a pressure washer with the right PSI (pounds per square inch) to ensure you don’t damage the metal of the building.

2. Protective Gear

Before you start power washing, make sure to put on appropriate protective gear. This includes safety glasses, gloves, and long sleeves. You don’t want to expose yourself to any harsh chemicals or high-pressure water that could cause injury.

3. Cleaning Solution

You’ll need a cleaning solution to help break down any dirt or grime on the metal building. You can use various solutions, such as a mix of detergent and water or a specialized metal-building cleaning solution.

4. Soft-Bristle Brush

A soft-bristle brush can be used to scrub away any stubborn areas of dirt or grime that the pressure washer can’t reach. Make sure to use a brush designed for metal surfaces to avoid scratching the metal.

5. Towels

Towels are essential for drying the metal building after it’s been washed. Make sure to use towels that are lint-free and non-abrasive.

What to Avoid When Washing Metal Buildings?

However, it is important to understand what needs to be avoided when washing metal buildings so that you do not cause any damage. Here are some tips on what to avoid when washing metal buildings.

1. Avoid Using Abrasive Cleaning Products

Abrasive cleaning products such as steel wool and scouring pads can easily scratch the surface of metal buildings. Instead, use a soft cloth and mild detergent to gently clean the metal surface.

2. Avoid Using Harsh Chemical

Harsh chemicals such as bleach and ammonia can cause corrosion and discoloration of metal surfaces. Instead, use a cleaner specifically designed for metal buildings.

3. Avoid Using Steel Wool

Steel wool can cause scratches on your metal buildings and can also cause rusting. Instead, opt for a soft brush or a sponge when cleaning your metal buildings.

4. Avoid Using a Wire Brush

A wire brush can also cause scratches on your metal buildings and can create rust. Instead, use a soft brush or a sponge when cleaning your metal buildings.

5. Avoid Using Bleach

Bleach can be very damaging to your metal buildings, so it is best to avoid using it for cleaning. Stick to mild detergents and cleaning solutions that are specifically designed for metal surfaces.


It is important to regularly wash metal buildings in order to maintain their longevity and prevent rusting. The best way to wash metal buildings is by using a pressure washer with a detergent attachment. When using a pressure washer, it is important to start from the bottom and work your way up to avoid streaks. In addition, it is important to rinse the building thoroughly after washing it in order to remove all traces of detergent.

If you are interested in investing in metal structures, you can contact us at Union Steel Structures. We create durable and long-lasting structures from high-quality materials. Get in touch with us to learn more about our services.

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