Passive Fire Protection for Steel Structures
Introduction: Steel is a widely used material in the construction industry due to its high strength-to-weight ratio, durability, and ease of fabrication. However, steel can lose its strength and integrity when exposed to high temperatures, especially in the event of a fire. Passive fire protection (PFP) is a crucial component of fire safety for steel structures, as it helps to protect the structure and prevent collapse in the event of a fire. In this white paper, we will provide an overview of passive fire protection for steel structures, including the various types of PFP systems, their applications, and their performance characteristics.
Types of Passive Fire Protection: There are two main types of PFP systems for steel structures: intumescent coatings and cementitious coatings. Intumescent coatings are thin, paint-like coatings that expand when exposed to high temperatures, forming a thick, insulating layer that protects the underlying steel. Cementitious coatings are thicker, plaster-like coatings that provide passive protection by acting as a barrier to heat transfer.
Application Areas: PFP systems are typically applied to the structural steelwork of buildings, including beams, columns, and connections. The application of PFP systems is particularly important in high-rise buildings, where the potential for fire is greater and the evacuation of occupants can be more difficult. PFP systems are also commonly used in industrial and petrochemical facilities, where flammable materials are present.
Performance Characteristics: The performance of PFP systems is dependent on several factors, including the type of coating, the thickness of the coating, and the duration of the fire exposure. Intumescent coatings are typically thinner and provide faster activation and higher protection, but may be more expensive. Cementitious coatings are thicker and provide long-term protection, but may be more difficult to install and maintain.
In order to determine the appropriate PFP system for a particular application, it is important to consider the fire protection requirements of the building or facility, as well as any regulatory requirements. Building codes and regulations typically require a certain level of fire resistance for steel structures, and PFP systems can help to meet these requirements.
Conclusion: Passive fire protection is a critical component of fire safety for steel structures. Intumescent and cementitious coatings are the two main types of PFP systems, each with their own performance characteristics and applications. Choosing the appropriate PFP system depends on the specific requirements of the building or facility, as well as any regulatory requirements. By incorporating PFP systems into building and facility design, we can help to protect the safety of occupants and prevent the collapse of steel structures in the event of a fire.
Intumescent Paint Systems
Intumescent paint systems are a type of passive fire protection coating used on building structures and materials to slow the spread of fire. They work by swelling up and forming a thick, protective layer when exposed to high temperatures.
The paint system typically consists of several layers, including a primer, basecoat, and topcoat. Each layer plays a crucial role in providing fire resistance and durability to the coating. The primer helps to prepare the surface for the intumescent coating, while the basecoat is responsible for providing the thermal insulation required to protect the surface from heat. The topcoat is usually a decorative layer that provides additional protection against weathering and corrosion.
Intumescent paint systems can be applied to a wide range of building materials, including steel, timber, and concrete. They are commonly used in commercial and industrial buildings, such as offices, warehouses, and factories, as well as in residential properties.
The effectiveness of intumescent paint systems depends on several factors, such as the thickness of the coating, the material being protected, and the duration and intensity of the fire. Regular maintenance and inspection of the coating are also necessary to ensure that it remains in good condition and continues to provide adequate fire protection.
Overall, intumescent paint systems are a reliable and cost-effective solution for enhancing the fire resistance of building materials and structures.
As Zetaş Yapı, we provide the following products and application services to our valued business partners with Hempel Intumescent Paint systems; (TDS or Catalog links will be placed as in Article 1)
- Hempafire Optima 500
- Hempacore One
- Hempacore One FD
- Hempafire Pro 315
- Hempafire Pro 315 Fast Dry
- Hempafire Pro 400