Foam Suppression
Highly specialized suppression for flammable liquid hazards where water alone is insufficient or counter-productive.
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What is foam suppression?
Foam suppression systems utilize a foam concentrate proportioned into water to form a robust blanket that smothers flammable-liquid fires and effectively blocks the release of hazardous vapors. By separating the oxygen from the fuel source and providing a cooling effect, foam systems prevent re-ignition in high-risk environments.
At Lacuna, we design systems that handle the unique physics of liquid fuel hazards, ensuring that the suppression agent is delivered at the exact expansion ratio and density required for the specific hazard type and containment area.
System types & delivery
Expansion Ratios
Low-expansion for rapid spread, Medium-expansion for deep coverage, and High-expansion for total flooding of large volumes like hangars.
Fluorine-Free (F3) Foam
Next-generation, environmentally responsible concentrates that eliminate PFAS/PFOA while maintaining superior fire knockdown performance.
Foam-Water Sprinkler & Deluge
Hybrid systems designed to discharge foam solution through standard or open sprinkler heads for uniform floor coverage.
Monitors & Subsurface Injection
High-capacity foam cannons for outdoor racks or direct injection into storage tanks to suppress fires from the base up.
Why it matters
Selecting the right foam system requires a deep understanding of the fuel's chemical properties and the environmental context. Our design considerations include:
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Flammable vs. combustible liquid hazard classification. -
Fuel type and miscibility (e.g., polar solvents vs. hydrocarbons). -
Containment, spill area geometry, and drainage capabilities. -
Proportioning ratio accuracy (1%, 3%, or 6% concentrations). -
Environmental compliance (PFAS-free transition and foam collection).
How Lacuna approaches it
Review
Detailed review of architectural plans and specific flammable hazard inventory.
Analysis
Comprehensive code and fuel analysis to match concentrate to the hazard.
Design
Hydraulic calculation and system proportioning design for reliable delivery.
Coordinate
AHJ coordination and complex submittal packages for hazardous occupancies.
Support
Field engineering support during installation and commissioning of foam systems.
Applicable codes & standards
Consultancy provided for F3 transition and PFAS remediation planning.
Where it's used
Send us your plans, get a scoped quote.
Our specialized hazards team will review your fuel types and containment requirements within 48 hours.