How To Protect Your Metal Building From Rusting

If you have invested in a metal garage or are thinking of buying a new steel structure, here are some tips to keep metal buildings rust-free. First, be sure your building is coated with a protective layer of paint or sealant that creates a barrier between metal and moisture.

Moreover, with regular inspection, you can fix minor issues promptly by removing affected areas and applying a fresh coat of paint. Washing also removes dust and debris that sticks to the panels and results in faded paint spots. With these tips and tricks, you can easily prolong the life of any metal structure, be it a garage, carport, barn, or commercial building.

What Causes Rusting In Metal Structures?

Rusting in a metal structure is caused by oxidation that occurs when iron alloys [metal, steel, etc.] come in contact with oxygen via water or moisture. The oxygen reacts with iron in the metal, forming iron oxide, known as rust [the reddish brown part over the metal surface]. This process speeds up due to water or moisture with time.

Other environmental factors that can increase the speed of rusting are – saltwater, pollutants, acids, etc. So, how to prevent rusting over metal surfaces? Keep reading to learn details.

Tips For Regular Inspection & Maintenance To Prevent Rust In Metal Buildings

It is crucial to have a scheduled inspection on a monthly or quarterly basis, depending on the use of the metal building. It ensures the longevity and functionality of the building. Here are some general guidelines:

Residential Use

Monitor inspections at least twice a year. You can look for rusting, corrosion, loose screws, and any damage to the panels. Use a garden hose with a nozzle and warm water with mild soap to clean the metal garage or carport every two to three months. Don’t forget to clean the roof, remove debris, and check for signs of leaks [especially after the rainy & winter seasons].

Agricultural Use

You can schedule an inspection twice a year to look for any signs of damage to the frame or panels. Inspection can also be scheduled more frequently if the metal barn is heavily used. Cleaning depends on the use of the building. For a livestock barn, frequent cleaning is crucial to maintain the health of your animals and farm workers.

Commercial Use

You can schedule structural checks at least twice a year, with additional checks after each season or severe weather event. Monthly cleaning is recommended to maintain the structure’s appearance and prevent rusting. Since commercial metal buildings are large, make sure to clean and check the roof regularly, along with moving parts such as doors and windows, for smooth operation.

Design Considerations For Metal Carports

Certain designs help reduce water accumulation and prevent moisture development in a metal building. For example, you can add insulation to roof and side wall panels to reduce heat transfer and control moisture. At Carports Advisor, we offer affordable single/ double bubble insulations and woven R17 insulation for superior thermal control.

Choose the roof’s pitch specific to your area.

Excessive Snow Or Rain	Moderate Summer
You can choose 6:12 to 12:12. The steep angle helps shed snow and water easily.	You can pick a 4:12 to 6:12 pitch.
A 30-degree pitch is effective in creating a balance between effective snow shedding and avoiding being overly steep.	A roof pitch of 14 to 25 degrees is adequate for summer climate zones. It offers a balance between ventilation and water runoff.

Make sure that your roof material is compatible with the pitch. E.g., asphalt shingles require at least 4:12 pitch for drainage. And don’t forget about the vent system.

What Are The Benefits Of Having A Vent System In A Metal Garage?

Adequate ventilation inside a metal structure reduces condensation and enhances fresh airflow. Here are some of the benefits:

• Proper ventilation to reduce moisture build-up.
• It reduces the chances of molds & mildew growth inside.
• Adding a dehumidifier helps control humidity.
• You can choose multiple windows to create air circulation inside a metal garage.

Using Protective Coating & Sealants To Stop Rusting

• Paint: Certain rust-inhibiting paint creates a barrier against moisture and oxygen. They are known for durability, and you can apply them directly to rusty metal.

• Powder Coating: Apply dry powder to a metal surface and cure it with heat. This creates a hard layer that protects metal from rusting.

• Epoxy Coating: These are chemical resistant and have strong adhesion. They are ideal for harsh conditions.

• Silicone Sealant: These are best for sealing joints and seams. They also keep water out of the building.

• Oil-Based Sealant: Some items, like boiled linseed oil, form a hard film over a metal surface. They are ideal for small surfaces.

Tip: Before applying primer, paint, or sealant, clean the metal surface thoroughly. Timely check and maintain the sealant and reapply the coating for ultimate protection.

Using Rust-Resistant Material For Construction

First of all, not all metal rust!

Yes, you read that right. Only iron and its alloys inhibit rusting. Some rust-resistant metals are brass, bronze, copper, stainless steel [contains chromium], and aluminum. When designing your metal carport or steel garage, opt for galvanized steel or metal with a rust-resistant coating.

We offer 100% galvanized steel that is coated with zinc to form a protective layer outside. It makes them ideal for carports, garages, and fencing.

Install Gutter With Downspout To Redirect Water

A gutter removes all water falling onto the roof and directs it towards a collection tank or ground with the help of a downspout. If you live in an area with frequent showers or snow, a gutter is a must. Install a gutter guard to avoid frequent cleaning.

You can clean the gutter after fall, during spring, when leaves fall, and after a harsh weather event. Use pressurized water to clean a choked downspout.

Clean & Remove Debris Off The Roof Regularly

The roof can easily go unnoticed for days until you spot a leak or insects entering. To avoid such a scenario, you can plan to clean the roof once a month or quarter. Use a mild soap with warm water to clean. You can also use a garden hose with a nozzle or a pressure washer at the lowest setting to clean the roof.

Remove stubborn stains like bird droppings with a soft bristle brush. Avoid harsh rubbing, as it can scrape off the top layer of paint.

Monitoring And Addressing Any Signs Of Rust Promptly

Timely monitoring of rust can help elongate the lifespan of a metal carport. It will take a few minutes to check for rust once a month. If you notice any rusting over the roof or side wall panels, scrap it with a wire brush or sandpaper [recommended]. This will remove the rust. Now, apply a rust-resistant primer [for metal] and put a coat or two of metal paint on it to conceal it.

If you notice any holes or gaps between the panels, seal it with silicone-based metal building sealant. Make sure the sealant is waterproof and lasts long.

Say Goodbye To Rust With Carports Advisor

Last but not least, consider investing in a high-quality raw material that will last you long. Always check if your metal building dealers have industry experience and deliver the best products. You can even check reviews and ratings on Google and social media handles.

With the above handy tips, your metal building will stay rust-free for years to come! To book your steel carport and building, call (336)-914-1654, tell us your details, and we will install your dream metal structure in no time. Call today!