Report on Fire Rating Properties of Strukko StandFast® Light Gauge Steel Frames Compared to Timber

Introduction

Fire Rating Properties of Strukko StandFast® Steel vs. Timber

1. Non-Combustible Nature of Steel:
   Strukko StandFast® light gauge steel frames are made from non-combustible material. Steel does not ignite, burn, or contribute to the spread of fire. This contrasts sharply with timber, which is a combustible material that not only burns but also serves as fuel for a fire, increasing the risk of rapid fire spread within a structure.
2. Structural Integrity Under Heat:
   The structural integrity of materials during a fire is crucial in determining how long a building can withstand fire exposure before collapsing. Timber, when exposed to fire, chars on the surface, which weakens its structural integrity. Although charring provides some insulation to the remaining wood, prolonged exposure to fire results in significant degradation and ultimately, failure. In comparison, Strukko StandFast® light gauge steel frames retain their strength for longer periods under high heat. Steel only begins to lose its structural integrity at temperatures above 600°C, providing a critical window for evacuation and fire control. Timber, however, begins to lose strength at much lower temperatures, leading to quicker collapse.
3. Higher Fire Rating Performance:
   Buildings and materials are rated based on how long they can resist fire without failing. Strukko StandFast® steel framing systems consistently achieve higher fire ratings than timber frames. Steel’s non-combustible properties allow it to maintain integrity and resist fire spread for longer periods, enhancing the building’s overall fire performance.
4. Consistency in Fire Resistance:
   Timber can be treated with fire retardants to improve its fire resistance; however, these treatments can diminish over time due to environmental exposure, moisture, and degradation. Steel, by contrast, does not require any additional treatment to enhance its fire resistance, ensuring consistent performance throughout the life of the structure. Strukko StandFast® light gauge steel frames maintain their fire-resistant qualities regardless of external conditions, making them a more reliable option for long-term fire safety.

Additional Benefits of Strukko StandFast® Light Gauge Steel Frames

1. Reduced Risk of Fire Spread:
   Timber framing, once compromised by fire, accelerates the spread of flames due to its combustibility. In contrast, Strukko StandFast® steel frames do not contribute to fire propagation, helping to contain and slow the spread of fire within a building. This containment capability can be crucial in allowing occupants more time to evacuate safely and in reducing overall fire damage.
2. Lower Toxic Emissions:
   When timber burns, it releases toxic gases and thick smoke, both of which pose significant health risks to building occupants and rescue personnel. Steel frames, being non-combustible, do not emit toxic fumes or large amounts of smoke when exposed to fire. This contributes to a safer environment during fire incidents by reducing the hazards associated with smoke inhalation.
3. Longevity and Durability:
   Beyond fire resistance, the durability and longevity of Strukko StandFast® light gauge steel frames provide long-term safety benefits. Timber frames are susceptible to moisture, rot, termites, and other environmental factors that can weaken the material over time. These factors can also compromise the effectiveness of fire retardant treatments, reducing fire resistance as the building ages. In contrast, steel is resistant to such environmental degradation, ensuring that its fire-resistant properties remain stable throughout the building’s lifespan.

Conclusion

Strukko StandFast® light gauge steel frames offer distinct advantages over timber when it comes to fire rating properties. Steel’s non-combustibility, superior structural integrity under heat, and consistent fire performance make it a far safer choice for modern construction. By reducing the risk of fire spread, minimizing toxic emissions, and providing reliable long-term fire resistance, Strukko StandFast® light gauge steel frames are an ideal solution for builders and architects focused on safety and resilience in the face of fire.