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Duct cleaning - refurbishment
A kitchen refurbishment is a rare opportunity - the chance to build fire safety into the kitchen properly, when the systems are being installed or replaced, rather than living with what was there or fixing it awkwardly later. Get the fire-safety considerations right in the refurb, and the kitchen is safer for years; miss them, and the shortfalls are built in. Here is what to get right.
The short answer
A kitchen refurbishment is the chance to build fire safety in properly, because the systems are being installed or replaced and the decisions made now are fixed for years. The key considerations: the extraction ductwork - routed and constructed with fire safety in mind, including fire protection where it passes through the building (fire dampers or fire-rated ductwork as required), so a fire cannot spread through it; fire suppression - installing or updating the suppression system over the cooking line, suited to the cooking; access for cleaning - designing in the access panels so the ductwork can be properly cleaned throughout its life, which is far cheaper to do now than to retrofit; and gas safety - the gas interlock linking the gas to the ventilation, now the minimum for new installs. Getting these right in the refurb builds fire safety into the kitchen from the start, whereas missing them means either living with the shortfall or fixing it awkwardly and expensively later. So a refurb is the moment to get the fire-safety fundamentals - ductwork protection, suppression, cleaning access, gas safety - designed in properly, so the kitchen is safe and maintainable for years rather than carrying built-in shortfalls.
Why a refurb is the moment
A kitchen refurbishment is a particularly important moment for fire safety, because the decisions made during it - about the ductwork, the systems, the layout - are largely fixed for years afterward, and are far easier and cheaper to get right now than to change later. When a kitchen is being refurbished, the extraction system may be installed or replaced, the cooking line and suppression set up, the services run - and how these are done determines the kitchen's fire safety for its life. Getting them right during the refurb builds the fire safety in; getting them wrong, or overlooking them, builds in shortfalls that are then expensive and disruptive to fix.
This is why a refurb is an opportunity not to be wasted: it is the rare chance to get the fire-safety fundamentals right when the systems are open and being worked on, rather than living with whatever was there or trying to retrofit improvements later. Retrofitting fire-safety measures - adding fire protection to installed ductwork, fitting access panels into existing ducts, upgrading suppression - is all harder and costlier than doing it as part of the refurb. So the refurb is the moment to think about fire safety properly and design it in, because the alternative is to miss the moment and either accept the shortfalls or fix them awkwardly down the line. A refurb done with fire safety in mind produces a kitchen that is safe and maintainable for years; one done without it produces a kitchen with built-in problems. So the fire-safety considerations deserve real attention during a refurb.
Ductwork routing and fire protection
A central fire-safety consideration in a refurb is the extraction ductwork - how it is routed and constructed, with fire protection where needed, so that a fire cannot spread through it. The ductwork connects the kitchen to the rest of the building, and a fire can travel along it, so how it is routed and protected matters for containing a fire. In a refurb, the ductwork can be routed sensibly and, importantly, given the fire protection required where it passes through the building - which may mean fire dampers (that close to stop fire and smoke passing) or fire-rated ductwork (constructed to resist fire) where the ducts pass through fire-separating elements of the building, as the fire-safety requirements demand.
Getting this fire protection right during the refurb is far better than discovering it is missing or inadequate later. Fire dampers and fire-rated ductwork, where required, are what stop a fire in the kitchen or ducts from spreading through the building via the ductwork - a serious concern, given the ductwork's role as a fire pathway. Building this protection in during the refurb, as the ductwork is installed, is the time to do it properly; retrofitting fire protection to installed ductwork is difficult. So the ductwork's routing and fire protection is a key thing to get right in the refurb: constructing and protecting the ducts so that, should a fire occur, it is contained rather than able to spread through the building via the extraction. This is fundamental fire safety built into the ductwork, best done when the ductwork is being installed - which is exactly what a refurb allows.
Suppression and cleaning access
Two more key considerations for the refurb are the fire suppression system and the access for cleaning. Suppression: the refurb is the time to install or update the fire suppression system over the cooking line - the automatic system that detects a fire, cuts the gas, and discharges an agent to smother it. A refurb changing the cooking line is the natural moment to ensure the suppression is present, suited to the cooking, and properly installed - rather than leaving an old, inadequate or absent system. So getting the suppression right is part of the refurb's fire safety.
Access for cleaning: the refurb is the ideal, and cheapest, time to design in the access panels that let the ductwork be properly cleaned throughout its life - built into the ductwork as it is installed, at the right intervals and points, so the whole system can be reached. This matters for fire safety because cleaning access is what enables the grease to be removed from the whole system, controlling the fire risk; a system installed without adequate access has parts that cannot be cleaned, accumulating grease and fire risk. Designing the access in during the refurb is far cheaper than cutting it into installed ductwork later, and it ensures the kitchen's extraction can be kept clean for its life. So the refurb should build in both the suppression (to fight a fire) and the cleaning access (to prevent one, by enabling the grease to be removed) - two fire-safety measures best provided during the refurb, when the systems are being installed. Missing either means a kitchen less able to fight a fire, or harder to keep clean, for years.
Gas safety and getting it right
Gas safety is another consideration where the refurb is the moment to get it right - particularly the gas interlock that links the gas supply to the ventilation, so gas only flows to the appliances while the extraction is running. This is now the minimum standard for new commercial kitchen gas installations, so a refurb installing or replacing the gas and ventilation should include it, ensuring the gas and extraction are properly interlocked for safety (which addresses the carbon monoxide and combustion risks of gas appliances running without adequate ventilation). Building the interlock in during the refurb is straightforward when the systems are being installed, and ensures the kitchen meets the current standard for gas safety.
Bringing it together, a kitchen refurbishment is the opportunity to get the fire-safety fundamentals designed in properly: the ductwork routed and fire-protected so a fire cannot spread through it; the suppression installed and suited to the cooking; the cleaning access built in so the system can be kept clean; and the gas interlock linking gas to ventilation. Getting these right during the refurb builds fire safety into the kitchen from the start, so it is safe and maintainable for years. Missing them means either living with the shortfall - a kitchen less safe or harder to maintain - or fixing it awkwardly and expensively later. So the refurb deserves proper fire-safety thought: it is the rare, cost-effective chance to build the fire safety in, and the considerations - ductwork protection, suppression, cleaning access, gas safety - are the ones to get right. A well-considered refurb produces a kitchen with fire safety built in; a refurb that overlooks it produces one with built-in shortfalls that persist. Use the moment.
The takeaway
A kitchen refurbishment is the chance to build fire safety in properly, because the systems are being installed or replaced and the decisions made now are fixed for years and far cheaper to get right now than to retrofit. The key considerations: the extraction ductwork - routed and constructed with fire protection where it passes through the building (fire dampers or fire-rated ductwork as required), so a fire cannot spread through it; fire suppression - installed or updated over the cooking line, suited to the cooking; access for cleaning - the access panels designed in so the ductwork can be properly cleaned throughout its life; and gas safety - the gas interlock linking gas to ventilation, now the minimum for new installs.
Getting these right during the refurb builds fire safety into the kitchen from the start, so it is safe and maintainable for years - the ductwork containing a fire rather than spreading it, the suppression ready to fight one, the access enabling the cleaning that prevents one, and the gas safely interlocked. Missing them means either living with the shortfall or fixing it awkwardly and expensively later, since retrofitting fire protection, access or suppression to installed systems is all harder than doing it as part of the refurb. So a refurb deserves proper fire-safety thought: it is the rare, cost-effective moment to get the fundamentals designed in. Build the fire safety in while you can, and the kitchen is safer and more maintainable for years; miss the moment, and the shortfalls are built in.
Questions
Because the decisions made during it - about the ductwork, systems and layout - are largely fixed for years and far easier and cheaper to get right now than to change later. When a kitchen is refurbished, the extraction, cooking line, suppression and services are installed or replaced, and how they are done determines the kitchen's fire safety for its life. A refurb is the rare chance to build fire safety in properly.
Routing and constructing the extraction ductwork with fire safety in mind, including fire protection where it passes through the building - fire dampers (that close to stop fire and smoke passing) or fire-rated ductwork (built to resist fire) where the ducts pass through fire-separating elements, as the requirements demand. This stops a fire spreading through the building via the ductwork, and is best built in as the ductwork is installed.
Yes - a refurb changing the cooking line is the natural moment to install or update the fire suppression system over it, ensuring it is present, suited to the cooking, and properly installed, rather than leaving an old, inadequate or absent system. The suppression detects a fire, cuts the gas, and discharges an agent to smother it, so getting it right is part of the refurb's fire safety.
Because it is the ideal and cheapest time to build in the access panels that let the ductwork be properly cleaned throughout its life - built into the ductwork as it is installed, so the whole system can be reached. This enables the grease to be removed, controlling the fire risk; a system installed without adequate access has parts that cannot be cleaned. Designing it in now is far cheaper than cutting access into installed ductwork later.
The refurb should include the gas interlock linking the gas supply to the ventilation, so gas only flows to the appliances while the extraction is running - now the minimum standard for new commercial kitchen gas installations. Building it in when the gas and ventilation are being installed is straightforward, and ensures the kitchen meets the current gas-safety standard, addressing the risks of gas appliances running without adequate ventilation.
The shortfalls are built in for years - a kitchen less able to contain or fight a fire, harder to keep clean, or not meeting current gas-safety standards - and fixing them later means retrofitting fire protection, access or suppression to installed systems, which is harder and costlier than doing it as part of the refurb. So overlooking fire safety in a refurb means either living with the shortfall or an awkward, expensive fix later.
A refurb is the time to design in the access that lets the ductwork be cleaned for its life - and we can advise on it. Our cleaning then keeps the well-designed system clean, controlling the fire risk for years.
