- Niky Baker
- Aug 21
- 4 min read
🔥 Passive Fire Protection in Industrial Properties: Why It Matters More Than You Think
Let’s be honest — fire safety isn’t exactly the most exciting topic in the world. You don’t often hear people chatting about fire-rated walls over a coffee. But if you own, manage, or even just work in an industrial property — a warehouse, factory, or big commercial unit — it really pays to know a bit about passive fire protection (PFP). It’s one of those behind-the-scenes heroes that could literally save lives, protect your building, and keep your business running.
So let’s break it down — no jargon, no lectures, just the basics.
🧯 First off: What is passive fire protection?
Passive fire protection (or PFP if you want to sound fancy) is all about building in fire safety— literally. It’s made up of the materials and systems that are already part of the structure of your building. Unlike fire extinguishers or sprinklers (which are called “active” systems because someone or something has to activate them), passive fire protection is just... there. All the time. Working quietly in the background.
Think of things like:
• 🔸 Fire-rated walls and ceilings
• 🔸 Fire doors that actually stay shut
• 🔸 Intumescent seals that swell up in heat
• 🔸 Fire-resistant glazing (yep, even windows can be fire-smart)
• 🔸 Fire-stopping materials around pipes, ducts, and cables
🧱 Why’s it such a big deal in industrial buildings?
Industrial properties tend to be big, busy, and full of… well… stuff. Machinery, stock, packaging, electrical systems — and in some cases, flammable materials. If a fire does break out, it can spread fast and do a lot of damage before anyone even notices.
Passive fire protection slows that down.
It buys precious time — time for people to get out safely, time for fire crews to get in, and time to stop the whole place going up like a bonfire. In short: it can be the difference between a small incident and a total disaster.
Here’s why it’s especially important in industrial settings:
• 🏭 Large open spaces mean fire can move quickly if not compartmentalised.
• 📦 High fire loads (lots of materials or goods stored) can feed a blaze.
• 👷 Shift work and night operations mean people may be inside at all hours.
• 💰 Business continuity — even a small fire can shut operations down for weeks.
🔍 What does passive fire protection actually look like?
Here’s the thing — you probably don’t notice it. And that’s the point. It’s not big red alarms or dramatic flashing lights. It’s usually tucked away in walls, floors, ceilings, and doors. Some examples:
• ✅ Fire-rated partition walls keep a fire in one area instead of letting it spread across the building.
• ✅ Intumescent mastic (that’s a special kind of sealant) used around pipes or cables. It swells up in heat to seal gaps.
• ✅ Fire doors that close automatically and have heat-resistant seals.
• ✅ Fire-resistant glass in windows and screens, so visibility doesn’t mean vulnerability.
It’s all about compartmentation — splitting a building into “zones” so fire can’t just race through the whole space unchecked.
💡 So, who’s responsible for it?
Good question. In the UK (and most other places), it’s the duty of the building owner or responsible person to make sure fire safety measures — including passive ones — are properly installed, maintained, and documented. That includes:
• 🔧 Regular inspections
• 📋 Fire risk assessments
• 🧰 Using certified fire-rated products and installers
• 🛠️ Not cutting corners during refurbishments (yes, that includes sealing that awkward hole behind the ductwork!)
If you’re renting an industrial unit, it’s still worth knowing what passive systems are in place. Ask questions. Look for labels on fire doors. Make sure nothing’s been drilled through a fire barrier “just to run a cable through”.
🚫 Common mistakes to avoid
Sadly, even the best fire protection can be ruined by simple mistakes. Here are a few things that make fire safety nerds cry:
• ❌ Wedges holding fire doors open (please don’t!)
• ❌ Tradespeople drilling holes in fire-rated walls and not sealing them
• ❌ Painted-over or missing intumescent strips
• ❌ Using non-fire-rated materials during refurb works
• ❌ Not having the work certified or recorded
Remember: if you break a fire barrier, you break the protection.
🧭 Final thoughts
Passive fire protection isn’t glamorous. It doesn’t beep or spray or make headlines. But in the world of industrial properties, it’s an absolute must. It’s about protecting your people, your premises, and your peace of mind.
So next time you walk past a chunky fire door or spot some weird grey sealant around a pipe — give it a little nod of respect. It’s working harder than you think.
🛠️ Want to learn more?
If you’re managing or refurbishing an industrial site, it’s worth getting a proper fire safety survey done. It’ll highlight what’s in place, what’s missing, and what might need upgrading. And trust us — doing it now is way cheaper than dealing with the consequences later.