Steel buildings are becoming increasingly popular and prevalent. From склады to garages and factories, these buildings are known for their durability. However, many people are skeptical about the lifespan of these buildings. So, they ask: How long do steel buildings last?
Unfortunately, there is no way to state the exact lifespan of steel buildings. Why? The reason is that various factors influence the life of steel buildings. However, you should expect a steel building to last more than 50 years. In this article, I will discuss everything about steel buildings and their longevity. Let’s get started.
Overview of Steel Building
Before discussing lifespan, I will first discuss the basics of these steel buildings.
Steel buildings are made with pre-fabricated steel components. These include steel columns, beams, trusses, panels, and so on. These steel components are assembled on-site to make the final buildings. These buildings do not use bricks or wood in their construction. Their reliance on steel makes these buildings robust and long-lasting.
As you know, wood and concrete buildings have always been very popular. However, those buildings were not very strong, which was a drawback. Termite infestation in wood and fire damage in concrete buildings are significant issues. That’s where steel buildings have proven to be an excellent alternative to both wood and concrete.
These steel buildings also use concrete, but only for the foundations. This concrete filling in the foundation gives these buildings strength. The remaining structural parts of these buildings are made of galvanized steel. Columns and beams are two primary parts of a steel building structure. They play a fundamental role in distributing the load of the roof and other parts to the foundations.
Apart from columns and beams, there are many other components. Each of these components is fabricated in a workshop and then transported to the site for installation. Here is the list of those steel components:
- Girts
- Шкурки
- Roof panels
- Wall panels
- Bracing systems
You might be wondering what purpose steel buildings serve. Interestingly, steel buildings are durable and strong. So you can use them for different purposes. These include garages, warehouses, aircraft hangars, factories, workshops, and more. In fact, the trend toward steel buildings is becoming common for commercial buildings.
Как долго служат стальные здания?
Steel buildings can last more than 50 years if you maintain them. If not well-maintained, their lifespan can be reduced to 30 years. With more careful use, you can expect their life to exceed 80 years. Simply put, the life of these steel buildings depends on their regular maintenance.
Both concrete and wood buildings are vulnerable to fire, pests, termites, and so on. So their lifespan is very low, which is a big drawback. However, the steel buildings are durable and last for years to come. It is worth noting that steel components used in the steel buildings are galvanized. This means these parts are coated with zinc through the galvanization process.
This process applies a layer of zinc coating to these components. As a result, the steel components used in these buildings do not corrode. This makes steel buildings last longer. Neither fire nor termites has a bad impact on these buildings. However, the maintenance of steel buildings is a key factor that can reduce their lifespan.
Despite being galvanized, steel components can still corrode over time. Addressing early signs of corrosion will increase the durability of your buildings. If you ignore these corrosion signs, they will get worse over time. This will eventually affect the durability and integrity of your steel buildings.
You should also inspect the building for loose fasteners or any other sign of damage. I highly recommend applying a thin coating of paint to protect the steel components from rust. Steel buildings with proper maintenance can last 20 to 25 years longer than those with no maintenance. In short, you should expect steel buildings to last over 50 years, which is way higher than wood and concrete buildings.
Factors that Affect the Lifespan of Steel-Structure Buildings
As I mentioned above, several factors influence the life expectancy of steel buildings. In the section below, you’ll learn about all these factors.
1- Quality or Grade of Steel
Interestingly, there are various steel grades available. Using high-grade steel will make your building last longer. Why? The reason is that high-grade steel has higher strength and durability. It can withstand the load efficiently without showing any sign of deformation.
On the other hand, low-grade steel contains impurities. As a result, this steel is not ideal for strength or load-bearing capacity. When used in steel buildings, it reduces their lifespan. Steel buildings made with higher-grade steel last 8 to 12 years longer than those made with lower-grade steel.
2- Protective Coatings
As you know, rust and corrosion are the enemies of здания из стальных конструкций. Once rust starts, it can weaken the components. As a result, the steel components’ load-withstanding capability decreases. You should always choose galvanized steel when making steel components.
Galvanized steel has a zinc coating that protects it from corrosion and rust. Additionally, you should also apply a different paint coating on the steel components. These coatings are useful for protecting components against corrosion, rust, or scratches. Remember, if a steel building is protected against rust, it can last up to 80 years.
3- Environmental Conditions & Exposure to Moisture
Steel buildings located in coastal areas generally have a shorter lifespan. The reason is that coastal areas are generally moist and have more salty water. These factors accelerate the rusting, which affects the strength of steel components. Additionally, consistent exposure to moisture is another disadvantage. On the other hand, steel building locations in dry areas last longer.
This is because in dry conditions, the chances of rust and corrosion are very low. Apart from moisture, extreme temperatures can also affect steel quality. If the temperature is too high, it can cause the steel to expand, affecting the integrity of steel components. If your steel building is located in harsh conditions, you must apply protective coatings.
4- Construction Quality (Workmanship)
In steel buildings, the construction quality matters a lot. If workers do not align the columns and beams carefully, this can affect load distribution. As a result, there will be an uneven load, resulting in faster deterioration of your building. In addition to alignment, workers must weld each joint carefully. There should be no porosity that could weaken the weld.
I highly recommend choosing high-quality bolts and fasteners. When using them, workers must ensure they are very tightly fitted together. Loose bolts or fasteners can affect the strength and quality of steel-framed building structures. You should always choose a well-experienced company for constructing steel buildings. This will ensure you get a strong building with no regret later.
5- Load Conditions & Usage
In a steel building, the right load distribution is crucial. If the load is uneven across components, it can be disastrous. In fact, in the worst case, uneven load distribution can result in the collapse of buildings. That’s because when load distribution is uneven, components experience different levels of stress. This uneven stress weakens the parts, accelerating the deterioration of the steel building. During construction, you should ensure even load distribution. Steel buildings with better load distribution can last for 70 to 80 years if well-maintained.
6- Maintenance is a Must
Maintenance is a fundamental factor that can influence the life of a steel building. A steel building with no maintenance can only last for 20 to 30 years. In contrast, the same steel building, properly maintained, can remain in good condition for over 60 years. Are you confused about what is included in the maintenance of steel structure buildings?
Below are some tips for maintaining a steel building:
- Check for rust or damage
- Repaint or recoat steel surfaces
- Clean dirt, debris, and chemical buildup
- Tighten bolts, screws, and fasteners
- Always maintain gutters and downspouts
- Fix any signs of structural stress or bending
As you know, nothing is perfect – and this applies to steel buildings as well. You’ll face some issues such as minor scratches, rust spots, and so on. If you take immediate steps to address these minor issues, your building will last longer. On the other hand, if you ignore minor issues, they will grow over time, affecting the lifespan of your building.
Can a Steel Building Collapse?
Yes, but that’s very rare in the case of steel-framed buildings.
Steel buildings are designed carefully for efficient load distribution. Components are made of high-grade steel, so they don’t fail suddenly. These buildings can last in very good condition for over 50 years. However, if the building has any issues, it shouldn’t collapse. Instead, it will show signs such as cracks, bends, or rust on various parts.
Generally, these issues are first noticeable on roof panels, paint coatings, and fasteners. If you notice that the fasteners are broken, it indicates the building is under an uneven load. Broken fasteners are generally the result of stress on a specific component caused by uneven load distribution. That’s why it is recommended to always inspect steel buildings.
This helps in noticing the issue quicker and finding solutions to prevent the collapse of the building. Remember, these buildings only collapse due to the bad design of the building. Additionally, if the steel components are overloaded, then this can all result in the collapse of the building. If your building is well designed and has suitable load distribution, you don’t have to worry. Your building will not collapse.
Часто задаваемые вопросы
How long does it take for steel to decompose?
Steel does not decompose because it is not an organic material. Steel used to build buildings lasts for over 50 years when well-maintained. This material starts to degrade over 100 years due to primary rust and corrosion. Once deteriorated, steel can be recycled and reused.
Wood vs steel: Which building is better?
A steel building is typically better than both wood and concrete buildings. The reason is that steel buildings last longer. Additionally, these buildings are resistant to bad weather, pests, termites, and fires. That’s why many people prefer steel buildings over concrete or wood ones.
Заключение
Let’s conclude – you should expect steel buildings to last for over 50 years. With excellent care and maintenance, you can keep it going for over 80 years. On the other hand, neglect or lack of maintenance can quickly deteriorate steel buildings. Interestingly, this 50+ year life expectancy is what attracts people to steel buildings.
Choosing between steel, wood, or concrete should no longer be confusing. If you prefer a better lifespan, you should always choose steel buildings. Remember, steel buildings can be expensive upfront, but they are cost-effective in the long run. Pests, termites, or fire won’t affect these buildings, which is a significant advantage.