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Does Exposed Exterior Steel Require Fireproofing?

Posted by Ecostar Insulation on February 12, 2026

Structural steel is an essential component in commercial building construction. Steel offers great durability, load-bearing capacity and longevity, making it ideal for both internal and external structures. While structural steel is quite strong, the material is definitely susceptible to fire damage and can lose all of its load-bearing capacity in the event of a fire. Contrary to popular belief, fireproofing services are essential for both internal and external steel structures. Adding a fireproofing coating to steel with protect the structure of your building against collapse, which can go a long way in keeping assets and occupants safe. Contact EcoStar today for fireproofing in Richmond Hill.

What Happens to Steel in a Fire?

fireproofing servicesWhile steel is non-combustible, it is not fire-resistant. The temperature of an orange fire is around 1000 to 2000 degrees Fahrenheit. At 1000 degrees Fahrenheit, structural steel begins to significantly lose its structural integrity, causing it to bend and eventually collapse. This puts your entire property and those inside at risk. Recovering a building after a fire can also be expensive and time-consuming.

When Exterior Steel Does Require Fireproofing

Regardless of whether steel elements are located inside or outside your building, they’ll likely require fireproofing. In fact, any load-bearing steel structure should be fireproofed to keep your property structurally sound in the event of a fire. 

The Ontario Fire Code also outlines specific requirements that certain commercial properties must adhere to regarding fire safety. Oftentimes, they require that certain parts of your property have a rating of at least 1-hour, meaning your property can withstand fire spread for an hour. 

Why You Should Fireproof Your Commercial Property

There are only benefits associated with investing in professional fireproofing services for your commercial property. Although there are upfront costs associated with initial installation, fireproofing can actually save you a lot of money in the long run.

  • Building Repairs: A property that is not equipped with fireproofing will likely collapse during a fire, destroying the structure, any assets inside your building and potentially even the occupants of your building. Restoring your property to its original state will require significant financial investment.
  • Better Insurance Rates: Installing fireproofing in your Richmond Hill property can lower your insurance rates, as your property is better protected against a catastrophic event. 
  • Occupant Safety: Fireproofing your property can help keep building occupants or employees safe during a fire outbreak. Fireproofing steel structures in particular keeps your building intact, keeping fire exit routes clear for people to escape.
  • Better Rescue Opportunities: Fireproofing your building gives rescue forces a better opportunity to put out any fire before it spreads or permanently alters your building’s structure. 

Protect Exposed Steel Structures Against Fire Damage

Fireproofing exterior and interior steel is not just a code requirement; it’s a critical step in protecting the integrity of your building during a fire. Proper fireproofing helps prevent structural failure, reduces risk, and supports overall building safety. If you are looking for fireproofing services in Richmond Hill, reach out to the experts at EcoStar Insulation. Call now for a quote!

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