
When an external hazard makes evacuation unsafe, a Shelter-in-Place (SIP) area becomes the only immediate protection for people on site. Toxic gas releases, fire-related smoke, heat exposure, and overpressure events can all threaten life within minutes. A well-designed SIP keeps occupants safe until emergency conditions stabilize.
At iFluids Engineering, we carry out detailed SIP Assessments to check whether your designated spaces, control rooms, substations, admin buildings or dedicated refuge rooms can provide the level of protection expected during a real emergency. As a Shelter-in-Place Assessment Consultant in India, our focus is on practical engineering, risk-based decisions and realistic emergency scenarios.
What a Shelter-in-Place Assessment Involves
A Shelter-in-Place Assessment examines how well a building or refuge room protects people from safety hazards such as toxic gases, external fires, smoke infiltration, heat and pressure impacts. The assessment also reviews how long the SIP can remain safe based on air quality, HVAC isolation and structural integrity.
SIP in risk management, this assessment acts as one of the key barriers that reduces the risk of exposure when evacuation is not possible.
Why SIP Is Important for Risk Management
A strong SIP strategy plays a major role in risk management, especially in facilities handling hazardous materials. When external conditions make it unsafe to step outside, due to gas releases, fire escalation, or blocked evacuation pathways the SIP area becomes the primary life-safety shelter.
Industries such as refineries, petrochemical plants, terminals, gas processing units and chemical clusters rely on SIP as part of their emergency preparedness.
Our SIP Assessment Approach

Defining SIP Boundaries
We identify the SIP location, occupancy level, expected duration of protection and possible hazard sources.
Identifying Hazard Scenarios
We list relevant safety hazards such as toxic ingress (H₂S, ammonia, chlorine, hydrocarbons), smoke entry, heat exposure or blast pressure.
Reviewing Structural and Envelope Integrity
We check the condition of doors, windows, wall gaps and other openings to understand the airtightness and pressure resistance of the SIP area.
HVAC and Ingress Analysis
We study air-change rates, isolation performance and filtration systems. Gas ingress modelling helps determine how long breathable air can be maintained.
Survivability Evaluation
We compare the SIP’s performance with accepted thresholds for oxygen, CO₂, temperature, toxic load and pressure. This helps determine the safe duration of occupancy.
Improvement Recommendations
We provide practical upgrades such as improving seals, isolating ducts, upgrading HVAC automation or reinforcing structure and entry points.
Documentation
You receive a complete safety assessment report with gas ingress results, survivability duration, compliance observations and an improvement plan.
Deliverables
- SIP survivability duration
- Gas ingress and air-quality analysis
- Structural and sealing condition assessment
- Clear improvement plan
- Audit-ready safety assessment report
Explore Our Engineering Expertise
Our brochure provides a detailed overview of our safety studies, risk assessments, engineering services and major projects completed over the last decade. It offers a clear picture of how we support clients across oil & gas, petrochemical and high-hazard industries.
Related Service:
- Toxic Risk Assessment (TRA)
- Temporary Refuge Impact Assessment (TRIA)
- Quantitative Risk Assessment (QRA)
- Escape, Evacuation & Rescue Analysis (EERA)
Why Choose iFluids Engineering
iFluids Engineering is a 10-year-old engineering consultancy offering technical risk-management services across India and abroad. Our experience covers high-hazard industries where emergency protection systems must function without fail.
What we bring to your SIP assessment:
- Multi-disciplinary engineering knowledge
- A strong grounding in risk management
- Realistic understanding of industrial emergency conditions
- Recommendations that are practical and implementable
- Integration with other studies such as QRA, HAZOP, TRIA and EERA
As your Shelter-in-Place Assessment Consultant in India, we help ensure your refuge strategy is engineered, tested and ready for real-world emergencies.
Start Your SIP Assessment
If you are looking to evaluate or upgrade your current Shelter-in-Place strategy, our team can help you with a clear, engineering-driven assessment tailored to your facility. Share your requirements with us, and we will prepare a detailed proposal outlining the scope, methodology and timelines.
Frequently Asked Questions
To ensure the designated refuge area can keep people safe from toxic gases, heat, smoke or overpressure when evacuation is unsafe.
It forms a vital barrier in risk management, limiting exposure during major emergencies.
Oil and gas, petrochemical plants, chemical units, terminals, fertilizer facilities and similar high-risk operations.
The duration varies and is determined through gas ingress modelling, HVAC performance and survivability thresholds.
Yes. SIP links well with QRA, Toxic Risk Assessment, TRIA and EERA.