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Fireproofing

Fireproofing

Fireproofing for Structural Safety

Fireproofing is important for protecting structures by enhancing their ability to withstand high temperatures and preventing premature collapse and allowing for safe evacuation. Applying specialised fire-resistant systems to structural elements can help to maintain the integrity and load-bearing capacity of buildings during a fire.

Effective fireproofing helps slow down the impact of extreme heat on structural components, due to which the risk of premature failure is reduced. It enhances overall safety & stability, provides valuable time for emergency response, and helps ensure that buildings meet the required fire protection standards.

Types of Fireproofing

Intumescent coating

Intumescent paint systems, designed for fire protection applications, operate on the principle of passive fire resistance through controlled expansion when exposed to elevated temperatures. This leads to generation of gases and the expansion of the coating into a robust, insulating layer that insulates and shields the underlying substrate from the thermal effects of the fire. These effectively delay the transfer of heat to the protected structural elements, such as steel or wood.

Types of Fireproofing

Fire Protection Vermiculite Mortar

Fire protection vermiculite mortar is a lightweight, high-strength material designed for superior thermal insulation and fire resistance. It uses expandable vermiculite aggregate—a natural mineral that swells with heat to form a low-density barrier blocking heat transfer—bound together for strong adhesion to surfaces like structural steel. Ideal for passive fire protection in buildings and industrial sites, it meets strict fire codes by minimizing structural load while providing extended fire endurance.

Fireproofing

Fire Risk & Structural Exposure Assessment

Evaluating fire risks and exposure of structural elements helps to identify key vulnerabilities. This assessment allows informed strategies to be developed that improve fire resistance, enhance safety, and strengthen the overall resilience and service life of the structure.

Fire Risk & Structural Exposure Assessment
SSPL’s engineers review the structure’s fire risk classification, occupancy type, and the fire scenarios applicable to structural elements. For industrial facilities, hydrocarbon pool fire and jet fire scenarios are assessed in addition to the standard cellulosic fire curve. The critical temperature at which unprotected structural members would lose load-carrying capacity is determined, establishing the thermal protection requirement for the fireproofing system.
Required fire resistance ratings are determined from applicable codes, the fire compartmentation strategy, and the consequences of structural failure. For buildings, ratings are established per IS 1641, IS 3809, and NBC 2016. For oil, gas, and petrochemical facilities, UL 1709 and ASTM E1529 hydrocarbon fire ratings apply. This stage sets the non-negotiable performance target for system design.
The fireproofing system is selected based on the required fire resistance rating, substrate type, design fire curve, environmental exposure, and application geometry. Applied thickness is calculated from manufacturer-certified fire test data corresponding to the specific substrate section factor (Hp/A or A/V) and required fire resistance period.
Substrates are prepared to the specified cleanliness standard, Sa 2.5 blast cleaning for steel followed by primer application where required. Fireproofing materials are applied in controlled lifts to the specified dry or wet film thickness, verified by calibrated gauges at each stage. Ambient conditions including temperature, relative humidity, and substrate temperature are monitored and recorded throughout application.
Completed fireproofing is subjected to systematic inspection covering substrate preparation quality, inter-coat adhesion, applied thickness, surface finish, and coverage of all critical connections and penetrations. DFT measurements are recorded per SSPC-PA2 protocols. SSPL compiles a complete QA dossier for every project covering material traceability, application records, inspection results, and test certifications.

PROJECTS

Highlights

NAVI MUMBAI

Largest Marine Structure Repair Project in India

From diagnostics, repairing, retrofitting to fireproofing, SSPL has been actively reinforcing Indian infrastructure for over 30 years. Having successfully completed over 1000 projects across India..