Moisture in the concrete is one of the most common reasons a resin floor fails early. The floor can look perfect on handover, then weeks or months later blisters appear, the coating starts lifting at the edges, or whole sections debond. In most cases the problem was in the slab before the first coat went down. This article explains why concrete moisture testing matters, how it is done, and what the options are when a slab is too damp.
Why moisture causes resin floors to fail
Concrete is porous and holds water long after it looks dry. New slabs contain mixing water that takes a long time to leave, and older slabs can draw moisture up from the ground if there is no effective damp-proof membrane underneath. Resin floors are largely impermeable, so when they are laid over a damp slab the moisture has nowhere to go.
Osmotic blistering
Osmotic blistering happens when moisture is drawn through the concrete towards the underside of the resin. Soluble salts in the concrete and at the bond line create pressure differences that pull water in, and over time this builds into liquid-filled blisters. They often start small and grow, and when they are cut open they may contain a liquid that can be alkaline. Once osmotic blistering has started it is rarely solved by patching the blisters alone.
Delamination and poor adhesion
Even without blistering, too much moisture at the surface can stop the primer bonding properly in the first place. Some resins react with water during cure, leaving a weak layer at the interface. The result is a floor that sounds hollow when tapped, peels at edges and joints, or breaks up under traffic.
How concrete moisture is measured
There are several ways to check moisture, and they do not all tell you the same thing. A reliable assessment uses the right method for the job and takes readings in enough places to represent the whole floor.
Relative humidity (hygrometer) testing
The method most commonly referred to in UK flooring guidance, including the BS 8203 and BS 8204 series of standards, is relative humidity (RH) testing with a hygrometer. An insulated hood is sealed to the surface, or a probe is placed in a drilled hole, and left until the air inside reaches equilibrium with the concrete. The RH reading reflects how much moisture the slab is likely to release into a sealed covering. Readings need time to stabilise, so this is not a five-minute test, but it gives a far better picture than a quick surface check.
Many resin manufacturers set a maximum RH for their standard primers, often around 75%, although limits vary by product. The manufacturer’s data sheet is always the reference point for the system being installed.
Surface moisture meters
Handheld meters that read moisture at the surface are useful for a quick comparison between areas, for finding damp patches, and for deciding where to place hygrometers. On their own they are not a substitute for RH testing, because they only see the top few millimetres and can be affected by salts, reinforcement and surface finishes.
Other checks
A survey should also check air and slab temperature, humidity and the dew point, as condensation during application causes similar adhesion problems. It is worth asking how old the slab is and whether it has a membrane underneath.
Why the concrete itself matters
Moisture testing goes hand in hand with checking the quality of the slab. Weak surface concrete, heavy laitance, contamination from oils and old coatings, or poorly finished new concrete all affect how a resin floor will bond and perform. We cover this in more detail in our article on the importance of quality concrete for your resin floor.
What if the slab is too damp?
A high moisture reading does not always mean the project has to wait. The options depend on the programme, the cause of the moisture and the system being installed.
Allow more drying time. For new slabs, time with good ventilation and heating may be enough, but drying can be slow, particularly for thicker slabs.
Use a damp-proof membrane (DPM) primer. Specialist epoxy DPM primers are designed to go down on concrete with higher moisture levels and suppress moisture before the main system is applied. They are often finished with an aggregate scatter to give a mechanical key for the following layers.
Choose a breathable or moisture-tolerant system. Some systems are designed to cope better with moisture vapour, though they still have limits.
Deal with the source. Leaks, poor drainage or a failed membrane under the slab need investigating, as no coating will overcome a constant supply of water.
In our own projects, DPM primers with an aggregate scatter are a regular part of the build-up under polyurethane screeds, particularly in food production and brewing areas where the slab and the environment are often damp.
Testing as part of proper preparation
Moisture testing should sit alongside the rest of the preparation process: mechanical diamond grinding to remove laitance and contamination, repairs to cracks and joints, and checks on the strength of the surface. You can read about how we approach this on our preparation page. Getting these steps right is far cheaper than lifting and replacing a failed floor.
If your existing resin floor is already blistering or lifting, our guide on how to repair resin flooring explains the common causes and the repair options. Where moisture is the cause, it needs to be dealt with as part of the repair, otherwise the same problem is likely to return.
Frequently asked questions
What moisture level is acceptable for resin flooring?
Many resin primers are limited to a relative humidity of around 75%, measured with a hygrometer, but the limit depends on the product. Always check the manufacturer’s data sheet. Where readings are higher, a damp-proof membrane primer or a moisture-tolerant system may allow work to go ahead.
What causes blisters in a resin floor?
Blisters are most often caused by moisture or osmotic pressure building up beneath the resin. Moisture moves through the concrete and is trapped by the impermeable coating, forming bubbles that can grow and fill with liquid. Contamination, poor preparation and application in cold or humid conditions can also contribute.
How long does concrete need to dry before resin flooring?
There is no fixed time. Drying depends on slab thickness, the concrete mix, temperature, ventilation and whether there is a membrane underneath. Rules of thumb are unreliable, so the slab should be tested with a hygrometer before work starts rather than relying on its age alone.
Can resin flooring be laid on damp concrete?
Not with a standard primer. On damp concrete, a specialist epoxy damp-proof membrane primer can be applied first to suppress moisture, followed by the chosen flooring system. The source of the moisture should still be investigated, especially if water is entering from below or from leaks.
If you are planning a new resin floor and want the slab assessed properly before work starts, call us on 01782 865099 or request a quote to arrange a site survey.
Forklifts and pedestrians sharing the same space is one of the biggest safety risks in any warehouse. Clear, durable floor markings are one of the simplest ways to manage that risk. They show people where to walk, where vehicles operate, where to stop and where nothing should be stored. This practical guide covers the general principles behind workplace transport safety, how line marking supports them, and what makes markings last on a busy warehouse floor.
The legal background in brief
Employers in Great Britain have a duty under health and safety law to organise workplaces so that pedestrians and vehicles can move safely. The Workplace (Health, Safety and Welfare) Regulations 1992 require traffic routes to be suitable for the people and vehicles using them, and floors to be suitable and in good condition. The Health and Safety Executive (HSE) publishes guidance on workplace transport that sets out how to achieve this in practice.
The HSE approach is built around three broad areas:
Safe site: the layout and design of the workplace, including routes, crossings, signs and markings
Safe vehicle: forklifts and other vehicles that are suitable, maintained and fitted with the right safety features
Safe driver: operators who are trained, competent and supervised
Floor marking falls under a safe site. It does not replace physical barriers where they are needed, but it is a key part of making the layout clear to everyone.
Separating pedestrians and vehicles
The most effective way to reduce forklift accidents is to keep people and vehicles apart wherever possible. Typical measures include:
Dedicated pedestrian walkways, clearly marked and wide enough for the people using them
Physical barriers or guard rails where walkways run alongside busy vehicle routes
Marked crossing points where pedestrians have to cross a vehicle route, with good visibility in both directions
Separate pedestrian doors next to vehicle doors, so people are not walking through loading bay openings
One-way systems for vehicles where layout allows, to reduce reversing
Markings make these measures visible on the floor. A walkway that is only described in a site plan is easily ignored, while a clearly marked route becomes part of how people move around without thinking.
What to mark
A well-planned warehouse layout usually includes markings for:
Pedestrian walkways and crossing points
Vehicle aisles and traffic routes, including direction arrows
Stop lines at junctions, doorways and blind corners
Racking aisles and bay positions
Exclusion zones around machinery, dock levellers and charging areas
Keep-clear areas in front of fire exits, fire points, electrical panels and first aid stations
Storage locations, quarantine areas and marshalling zones for goods in and out
Choosing colours
There is no single colour scheme that UK law requires for warehouse floor markings. What matters most is that your scheme is consistent across the site, explained to staff and visitors, and backed up by signs where needed. Common conventions include:
Yellow or white for traffic routes, aisles and general lane markings
Green for pedestrian walkways in many sites
Yellow and black stripes for hazard areas and physical obstructions
Red and white for keep-clear zones, such as in front of fire equipment
Blue, orange or other colours for storage, goods-in, quarantine or waste areas, depending on your system
Safety signs and colours are covered by separate regulations, so it is worth making sure any hazard markings and floor signs are consistent with the safety signage elsewhere in the building.
Making markings last
Line markings in a warehouse take constant abuse from forklift tyres, pallet trucks, dragged pallets and cleaning machines. Painted lines on bare concrete often wear away within months, and faded markings are worse than none because people stop trusting them.
Several factors affect durability:
Preparation
Markings bond best to a clean, sound surface. Grinding or abrading the floor before marking removes dust, laitance and old coatings that would otherwise cause peeling.
Material
Resin-based line marking is typically far more hard-wearing than standard floor paint and resists oils, fuels and cleaning chemicals. Our post on resin line marking explains why resin is often used in demanding areas such as vehicle workshops and MOT bays.
Integration with the floor
Where a warehouse floor is being coated or refurbished, markings can be built into the new resin system. This gives a seamless finish with lines that are part of the floor rather than sitting on top of it. Our warehouse case study shows a full refurbishment with a 6mm polyurethane screed chosen for its resistance to forklift traffic, point loads and chemicals.
Slip resistance
Wide painted areas, such as walkways and hatched zones, can become slippery when wet. Anti-slip aggregate can be added to markings to keep grip consistent with the surrounding floor.
Reviewing your layout
Markings should reflect how the warehouse actually works. A layout that made sense when the building was fitted out may no longer suit after racking changes, new equipment or a change in operations. A practical review typically involves:
Walking the site during a busy shift to see how people and vehicles really move.
Identifying near misses, blind spots and places where pedestrians take shortcuts.
Updating the workplace transport risk assessment.
Re-marking routes, crossings and exclusion zones to match.
Briefing staff and visitors on what the markings mean.
There is no single legally required colour for warehouse walkways in the UK. Green, yellow and white are common choices. The most important thing is that your colour scheme is used consistently across the site, explained to everyone working there and supported by signs where needed.
Is floor marking a legal requirement in warehouses?
The law requires traffic routes to be suitable and organised so pedestrians and vehicles can move safely, but it does not say every warehouse must use floor markings. In practice, clear markings are one of the most common and effective ways to meet that duty, alongside barriers and signs.
How long does warehouse line marking last?
It depends on the material, preparation and traffic. Standard paint on unprepared concrete can wear quickly under forklifts, while resin-based markings on a properly prepared floor typically last much longer. Markings built into a new resin floor system are usually the most durable option.
How wide should a pedestrian walkway be in a warehouse?
Walkways should be wide enough for the number of people using them and anything they carry, with extra space where they run beside vehicle routes. HSE guidance does not set one fixed width for every site, so width should come from your workplace transport risk assessment.
Planning new markings or a warehouse floor refurbishment? Optimum Flooring Services Ltd can survey your site and recommend a durable solution. Call 01782 865099 or request a quote.
If you are considering liquid roofing for a flat roof — whether on a commercial building, an extension, or an industrial unit — one of the first questions you are likely to ask is: how long will it actually last? It is a fair question, and the honest answer is that it depends. A professionally installed liquid roofing system can perform reliably for 25 years or more. But cut corners on installation, choose the wrong system for your substrate, or neglect basic maintenance, and that figure can drop considerably. This guide walks through what you can realistically expect, and the key factors that determine whether your roof reaches its full potential lifespan.
What Is Liquid Roofing and How Does It Work?
Liquid roofing is a cold-applied waterproofing system that is installed as a liquid and cures to form a seamless, flexible membrane directly bonded to the roof substrate. Unlike traditional felt or sheet-based systems, there are no laps, seams, or joints — which means there are far fewer weak points where water can find a way in. The membrane forms around details like pipes, vents, rooflights, and upstands, creating a continuous waterproof layer across the entire roof surface.
At Optimum Flooring Services Ltd, we install Triflex liquid roofing systems, which are among the most technically advanced cold-applied membranes available in the UK market. Triflex systems are reinforced, UV-stable, and engineered to handle the kind of thermal movement and weather exposure that UK roofs face year-round.
How Long Does Liquid Roofing Last?
A well-specified and correctly installed liquid roofing system will typically carry a manufacturer’s guarantee of between 20 and 25 years. In practice, systems that are properly maintained often exceed this — there are liquid-applied membranes still performing after 30 years on low-traffic roofs with clean drainage. At the other end of the scale, a poorly installed system on a substrate that was not properly prepared may begin to fail within just a few years.
The guarantee period matters, but it should not be the only figure you look at. What is covered under that guarantee — and under what conditions it can be voided — is equally important. A reputable installer will always be transparent about this before work begins.
Factor 1: Quality of Surface Preparation
Surface preparation is the single most important factor in determining how long any liquid roofing system will last. No matter how good the membrane itself is, it can only perform as well as the substrate it is bonded to. If the existing roof surface is contaminated, friable, damp, or poorly primed, adhesion will be compromised — and once the bond between membrane and substrate begins to fail, water ingress quickly follows.
Before any liquid roofing is applied, the substrate must be thoroughly cleaned, any loose or deteriorating material removed, and primers or preparation coats applied as specified by the system manufacturer. At Optimum Flooring Services, our team carries out a full substrate assessment before every liquid roofing project. If the base is not right, we address it before proceeding — because this is where long-term performance is won or lost.
Factor 2: System Specification and Coating Thickness
Not all liquid roofing systems are equal, and not all specifications are appropriate for every roof. The system selected needs to match the substrate type, the expected foot traffic, the roof geometry, and the local climate conditions. Applying a light-duty system to a roof that receives regular maintenance access, for example, is a specification error that will shorten the membrane’s working life significantly.
Coating thickness is also critical. Most liquid roofing systems are designed to be applied at a minimum dry film thickness — typically measured in millimetres — and cutting this short to save time or material is one of the most common causes of premature failure. A thinner membrane is less resistant to UV degradation, thermal cycling, and physical impact. At Optimum Flooring Services, we always specify and apply systems to the manufacturer’s recommended thickness, confirmed through wet film thickness checks during installation.
Factor 3: Detailing at Junctions and Penetrations
The vast majority of roof leaks do not occur in the middle of a roof — they occur at the edges, junctions, upstands, pipe penetrations, rooflights, and drainage outlets. These are the areas where sheet-based roofing systems struggle most, because they require overlapping, cutting, and sealing that always introduces potential weak points. Liquid-applied systems have a natural advantage here, because the membrane flows into and around these details, forming a continuous bond.
But this advantage is only realised if the detailing is done correctly. Reinforcement fleece should be embedded into liquid systems at all junctions and upstands, ensuring the membrane maintains full thickness and flexibility in areas that experience the most movement and stress. Rushed or under-reinforced detailing is a leading cause of liquid roofing failures that appear years before the membrane itself would have shown any signs of wear.
Factor 4: Drainage and Water Management
Standing water — known as ponding — is one of the most significant threats to any flat roof system’s longevity, including liquid membranes. While high-quality systems like Triflex are designed to resist ponding water, prolonged or permanent standing water accelerates UV degradation at the water line, can introduce biological growth such as moss and algae, and places additional weight and pressure on the roof structure.
Good flat roof design includes adequate falls — typically a minimum of 1:80 — to direct water towards outlets. If your existing roof has drainage issues, addressing them as part of a liquid roofing refurbishment will pay dividends in extended system lifespan. Our team can advise on drainage solutions as part of any liquid roofing project, and we work closely with structural engineers where falls need to be created or improved.
Factor 5: Foot Traffic and Physical Wear
A roof that is regularly accessed for maintenance — to service air conditioning units, clean skylights, or inspect plant equipment — is subject to physical wear that a purely weatherproof membrane was not necessarily designed to handle. Dragging equipment, tool drops, and repeated foot traffic in the same areas can all cause abrasion and surface damage that shortens the effective life of the coating.
For roofs with regular access requirements, the system specification should account for this from the outset. This might mean selecting a higher-build system, incorporating a slip-resistant walkway coating in trafficked areas, or using a system with an enhanced topcoat specifically designed for pedestrian use. Getting this right at specification stage is far more cost-effective than applying remedial coatings after damage has already occurred.
Factor 6: Maintenance and Inspection
Even the best-specified and most expertly installed liquid roofing system will benefit from periodic inspection and maintenance. Debris — particularly leaves and organic matter — should be cleared from outlets and gutters regularly, as blockages that cause water to back up onto the roof surface are a preventable but common source of long-term damage. Any minor damage identified early, such as small splits or localised delamination, can almost always be repaired quickly and affordably before it develops into a more serious issue.
We recommend an annual inspection for most commercial liquid roofing installations, and a post-winter check following any period of severe weather. Many of our clients find that a simple maintenance visit every year or two — catching minor issues before they escalate — more than pays for itself compared to the cost of an emergency repair or early re-roofing.
How Optimum Flooring Services Ltd Can Help
At Optimum Flooring Services Ltd, we have extensive experience designing, installing, and refurbishing liquid roofing systems for commercial and industrial clients across the UK. Whether you are planning a new build, need to overcoat an ageing flat roof, or are dealing with an active leak that needs fast resolution, our team can assess your roof and recommend the most appropriate system to meet your needs and your budget.
We install Triflex liquid roofing systems — cold-applied, reinforced membranes with manufacturer-backed guarantees and a proven track record in the UK climate. Every project starts with a thorough site assessment, and we are always happy to explain our specification choices in plain language so you understand exactly what you are getting and why.
To discuss your roof or request a survey and quotation, get in touch with our team today. We cover projects across the UK from our base in Newcastle-under-Lyme.
Commercial kitchen floors work harder than almost any other floor in a building. They are exposed to hot water, grease, food acids, dropped pans, trolleys and daily cleaning chemicals, often all within the same shift. They are also one of the areas an Environmental Health Officer (EHO) will look at closely during an inspection. This guide explains what environmental health requirements mean for kitchen flooring in practice, and which systems are most likely to meet them.
What the rules say about kitchen floors
Food hygiene law in the UK sets out general requirements for food premises rather than specifying a particular product. For floors in rooms where food is prepared, the main expectations are that floor surfaces are:
Maintained in a sound condition
Easy to clean and, where necessary, disinfect
Made of impervious, non-absorbent, washable and non-toxic materials, unless the business can show other materials are appropriate
Able to allow adequate surface drainage where appropriate
An EHO will judge whether your floor meets these outcomes on the day. The condition of the premises, including floors, feeds into the overall assessment, and for businesses covered by the Food Hygiene Rating Scheme it can affect the rating you display. Health and safety law adds a separate duty to keep floors suitable for their use and free from slip hazards so far as reasonably practicable.
What an EHO is likely to notice
Cracks, holes and damaged areas
Broken tiles, missing grout, cracked screed and worn patches allow grease and food debris to build up where cleaning cannot reach. They are also a trip hazard. Damage around cooking lines, dishwash areas and drains tends to appear first.
Joints and wall-floor junctions
Square corners and open joints collect dirt. Seamless floors with coved edges, where the floor curves up the wall, are far easier to clean thoroughly and are commonly expected in modern food premises.
Drainage and standing water
Kitchens that are hosed down or see regular spills need floors that fall to drains. Water that sits in dips or around channel edges spreads contamination and makes the floor slippery. Drain covers and channels should be cleanable and in good condition.
Slip risk
Slips are a major cause of injury in catering. A kitchen floor needs enough texture to stay safe when wet or greasy, but not so much that it becomes difficult to clean.
Why resin flooring suits commercial kitchens
Seamless resin floors are widely used in professional kitchens because they address most of these points in one system. A properly specified floor is impervious, has no grout lines, can be coved up the walls and can be laid to falls towards drainage. Our food grade flooring page covers the systems we install for food environments.
Polyurethane screeds for hot, wet kitchens
The kitchen environment is particularly hard on rigid floors because of thermal shock. Boiling water, hot oil and steam cleaning cause rapid temperature changes that can crack or debond some coatings. Heavy-duty polyurethane screeds are typically the preferred choice for this reason. They are tough, flexible and highly resistant to impact, chemicals and many food acids and fats. You can read more on our polyurethane flooring page.
Choosing the right slip resistance
Slip resistance is usually specified using R ratings under DIN 51130. Commercial kitchens with good drainage are often specified at R10 or R11, while heavy, high-volume kitchens with constant grease may need R12. The right rating depends on your risk assessment, the contaminants present and the cleaning regime. Our guide to anti-slip flooring standards explains each rating in more detail.
Drainage is part of the floor
Many kitchen floor failures start at the drain. If a channel sits too high, water ponds around it. If the joint between the floor and the drain is not sealed and flexible, water gets underneath and the floor begins to lift. Designing the floor and drainage together avoids this.
Good kitchen drainage typically includes:
Falls laid into the floor so water runs to channels and gullies
Hygienic stainless steel channels and gullies with removable baskets
Channels set so the floor finish meets them flush
Flexible resin jointing around drains to prevent cracking and water ingress
We supply and install made-to-measure drainage, from Aco channels to food-grade stainless steel, so the floor and drains are planned as one job.
Keeping disruption to a minimum
Most kitchens cannot close for long. Installation is often phased, or carried out overnight or during a planned closure. Where downtime is very tight, fast-cure systems can be laid and returned to use much sooner than standard screeds, though the specification still needs to suit the heat and chemicals in the area. A site survey will establish what is achievable within your closure window.
Maintaining compliance after installation
A new floor only stays compliant if it is looked after. A few habits help:
Use cleaning products and methods suitable for the floor and its texture.
Remove grease build-up promptly, as it reduces slip resistance.
Check coving, drain joints and doorways regularly for damage.
Repair small defects quickly before they spread.
Frequently asked questions
What flooring is required in a commercial kitchen?
Commercial kitchen floors must be kept in sound condition, easy to clean and disinfect, and made from impervious, non-absorbent, washable and non-toxic materials, with drainage where needed. Seamless resin floors, particularly polyurethane screeds with coved edges, are a common way to meet these requirements.
Is resin flooring suitable for commercial kitchens?
Yes. Resin floors are seamless, impervious and easy to clean, and can be coved and laid to falls. Heavy-duty polyurethane screeds are especially suitable because they resist thermal shock from hot water and steam cleaning, as well as grease, food acids and impact.
What slip rating should a commercial kitchen floor have?
Many commercial kitchens with good drainage are specified at R10 or R11 under DIN 51130, while heavy, greasy, high-volume kitchens may need R12. The correct rating should come from a risk assessment that considers contaminants, footwear, drainage and the cleaning regime.
Can an EHO mark you down for a damaged floor?
Yes. The condition of the premises, including floors, is part of a food hygiene inspection. Cracked, broken or uncleanable floors, or areas where water pools, can be raised as issues and may affect a business’s food hygiene rating if they are not addressed.
If your kitchen floor needs replacing or repairing, Optimum Flooring Services Ltd can survey the site and recommend a hygienic, slip-resistant system. Call 01782 865099 or request a quote.
For many manufacturers, the summer shutdown is the one window in the year when production stops long enough to do serious work on the floor. It is also short, and has to cover maintenance, machinery moves and cleaning too, so the flooring programme must be tight and realistic. This guide explains what actually decides how fast a factory floor can be installed, and how to plan so the floor is ready when the lines restart.
Start planning months before the shutdown
The single biggest factor in a fast installation is the planning that happens before anyone arrives on site. Summer is busy for flooring contractors because so many sites close at once, so book a survey in the spring. That leaves time to agree a specification, order materials and confirm the programme with your production and maintenance teams.
Useful things to decide early include:
Which areas must be finished before restart and which could wait for a later shutdown
Whether machinery, racking or services need to be moved, and who is moving them
Working hours on site, including whether night or weekend shifts are possible
Temperature, ventilation and storage space during the works
The site survey sets the programme
A proper survey tells you what the existing floor will allow. The contractor will look at the condition of the slab, any existing coating, contamination, cracks, joints, drainage and moisture. They will also ask what the floor faces in service: forklifts, racking loads, chemicals, hot washdown or thermal shock.
Those answers decide the system, and the system decides the timescale. A thin coating on a sound, dry slab is a very different job from removing an old failing screed, repairing the concrete and laying a heavy-duty screed with falls to drainage.
Preparation is not the place to save time
Surface preparation usually takes a significant share of the programme, and it is the stage that most affects how long the floor lasts. Existing coatings, laitance and contamination need to be removed and the surface opened up so the new resin can bond mechanically. On industrial sites this is normally done by diamond grinding with vacuum extraction, which keeps dust down in a building that may still have staff working nearby. You can read more about our approach on our surface preparation page.
Preparation also covers crack and joint repairs, anchor grooves at edges and thresholds, and a damp-proof membrane primer if moisture testing shows the slab is too damp. All of this should be programmed in from the start, not discovered half way through the shutdown.
Choosing a system that fits the window
Different resin systems cure at very different speeds. The right choice balances performance against the time available, rather than simply picking the fastest product.
Epoxy coatings and screeds
Epoxy systems are hard-wearing and widely used in factories and warehouses. Curing depends on the product and the temperature at installation, but some epoxy products can take light traffic in as little as 24 to 48 hours. Full chemical resistance and heavy traffic generally take longer, so the programme needs to allow for this before machinery goes back in.
Polyurethane screeds
Polyurethane screeds are typically chosen where the floor faces heavy impact, chemicals, hot water or thermal shock, such as food and drink production. They are tougher and more flexible than many epoxy coatings, and are commonly laid at around 6mm to 9mm. They generally need a similar cure window to epoxy before full service.
MMA and polyaspartic fast-cure systems
Where the shutdown is very short, fast-cure chemistry can make a big difference. MMA (methyl methacrylate) systems cure in hours, which is why they are often used for refurbishment and overnight work. Polyaspartic coatings can be ready for traffic within 30 to 40 minutes of application and are virtually odourless, which helps where other work is going on in the building. Our MMA fast-cure flooring page explains where these systems fit best.
Our factory flooring systems page sets out the main options side by side if you are still weighing up which way to go.
Cure times and temperature
Most resins cure more slowly in the cold and faster in the warm, which is one reason summer can be a good time to install. Very high temperatures can shorten working times, though, and the slab temperature, humidity and dew point all need checking, because condensation on the surface can spoil the finish.
It is worth separating three milestones when you plan restart:
Foot traffic, when staff can walk on the floor to start reinstalling equipment
Light wheeled traffic, such as pallet trucks and trolleys
Full service, including forklifts, heavy loads and chemical exposure
Your contractor should give you each of these dates for your site.
Phasing the work
If the whole floor cannot be done in one shutdown, phasing is often the answer. The building is split into zones, each prepared and coated in turn, with temporary barriers and agreed routes so the rest of the site can keep moving. Phasing works well where production lines can be restarted one at a time, or where some areas such as walkways, loading bays or wash areas can be done first. A sensible approach is to use the summer shutdown for areas that cannot be touched at any other time, such as around production lines, and schedule less critical areas for weekends or the Christmas shutdown.
Local support for Staffordshire manufacturers
Based in Newcastle-under-Lyme, we can survey North Staffordshire sites quickly and respond fast if plans change during a shutdown. See our factory flooring in Staffordshire page, though we work UK-wide too.
Frequently asked questions
How long does it take to install a resin factory floor?
It depends on the area, the condition of the existing floor and the system chosen. A coating on a sound slab can often be done in a few days, while heavy-duty screeds with repairs and drainage take longer. A site survey is the only reliable way to get an accurate programme for your factory.
What is the fastest curing industrial floor?
Polyaspartic and MMA systems are typically the fastest. Polyaspartic coatings can be ready for traffic within 30 to 40 minutes, and MMA systems cure in hours. They suit tight shutdowns, but the choice should still be based on the traffic, chemicals and temperatures the floor will face.
Can a factory floor be installed in phases?
Yes. Many factory floors are installed zone by zone, with barriers and agreed routes so the rest of the site keeps working. Phasing needs careful sequencing and well-detailed joints between areas, but it allows larger floors to be completed over several shutdowns or weekends.
When should I book a contractor for a summer shutdown?
Ideally in the spring. Summer is a busy period because many manufacturers close at the same time. Booking early gives time for a survey, moisture testing, specification and material orders, so the work can start on the first day of the shutdown.
If you have a summer shutdown coming up and want to know what can realistically be achieved in the time available, call us on 01782 865099 or request a quote and we will arrange a site survey.
