Industrial slabs
Warehouse Floor Coatings in Houston
On a warehouse slab, square footage is the least useful number. Joints, dock-edge spalling and forklift loading are what decide the specification and the price.
What kind of coating suits a warehouse floor?
Short answer
Warehouse floors are specified for traffic, not appearance. Forklift wheels, pallet drag and point loading drive the choice, along with how much downtime the operation can absorb. Joints and cracks are treated as their own step, line marking is designed in rather than added later, and slip resistance is specified by measured DCOF.
At a glance
- Quick answer
- Warehouse slabs are a traffic and joint problem before they are a coating problem; forklift aisles and foot areas are not the same specification.
- Best for
- Distribution and storage floors needing a durable, cleanable surface
- Facilities marking traffic routes and pedestrian zones
- Slabs where dust control from bare concrete is a concern
- Not recommended when
- Joints and cracks have not been assessed — they move, and a coating alone will not stop that
- The whole floor is being specified to one system regardless of traffic type
- No area can be taken out of service for the required sequence
- Installation time
- Phased across zones so the facility keeps operating. The written scope states which areas are released when.
- Return to service
- Foot traffic returns before vehicle traffic. Exact hours are set by the installed system’s technical data sheet and by cure-day temperature and humidity, so they are given in writing at the final walkthrough rather than published as a fixed number.
- Preparation method
- Mechanical diamond grinding with dust control. Never acid etching.
- Warranty
- 5-year written workmanship warranty
- What drives cost
- Area, and how many phases operations require
- Joint treatment and crack repair, which on a warehouse slab is often the largest line
- Different systems for forklift aisles versus pedestrian areas
- Line marking and zone demarcation
What we survey
Six things that decide an industrial specification
Every one of these is assessed onsite, because getting any of them wrong is what produces a warehouse floor that fails in its first year.
Slab detail
Control and construction joints
Warehouse slabs are full of joints, and joints move. A coating run straight across one without the joint being detailed will crack along that line. Joint treatment is assessed and priced separately.
Loading
Forklift and pallet-jack traffic
Hard polyurethane wheels under load concentrate force into a small contact patch, and turning adds a shearing component. This is a different kind of stress than foot traffic and it drives the system choice.
Slab detail
Spalling at joints and dock edges
Repeated wheel impact breaks concrete down at joint edges and around dock doors. That damage is repaired as its own step — coating over a spalled edge just conceals it briefly.
Operations
Concrete dusting under traffic
An uncoated warehouse slab sheds fine dust continuously, which ends up in inventory, on racking and in equipment filters. Sealing the surface is often the primary business case for the coating.
Access
Racking and fixed equipment
Slabs with racking bolted down cannot always be fully cleared. We assess what can be worked around and what has to move, and phase accordingly.
Substrate
Moisture in on-grade slabs
Large slabs on grade can carry significant moisture, and vapor moving upward is a bonding risk across a big area. Slab moisture is assessed before a system gets specified.
Scope
What an industrial install includes
- Slab and joint condition survey across the full area
- Joint detailing and crack repair itemized separately
- Spall repair at dock edges and joint shoulders
- Dust-controlled diamond grinding at scale
- System specified to the actual traffic, not a default build
- Traffic lane and walkway striping as its own scope
- Phased by bay or zone so operations continue
- Written 5-year workmanship warranty
Joints are the part most quotes ignore
Concrete slabs are cast with control joints on purpose, so the slab cracks where you chose rather than randomly. Those joints continue to move with temperature and load for the life of the building.
A coating is a continuous film. Run it across a moving joint with no detail and the film has to absorb that movement, which it does by cracking in a straight line. Proper joint treatment is the difference between a warehouse floor that holds up and one that develops a grid of cracks in the first year.
If a warehouse quote you are comparing does not mention joints at all, that is the first thing to ask about.
Pricing & phasing
How industrial work gets costed
Two sequences, two costs. You see both so the operational trade-off is yours to make.
Why warehouse work is priced differently
Square footage is the least interesting number on a warehouse quote. What moves the price is linear feet of joint to detail, how much spall repair the dock edges and joint shoulders need, whether an existing coating has to come off, and how many phases the operation requires.
A large clean slab with few joints and no existing coating is straightforward work at scale. The same square footage broken up by racking, with damaged joints and a failed coating from a previous contractor, is a substantially different job. Both get quoted from the survey rather than from an area rate.
Phasing a live facility
Most warehouses cannot stop. Work is normally phased by bay, aisle or zone, with each area cleared, ground, repaired, coated and returned to service before the next begins. That means more mobilizations and a longer overall calendar, in exchange for continuous operation.
The alternative — closing the whole floor for a single continuous run — is faster and cheaper per square foot. Which one makes sense is an operational decision, and you get both sequences costed so it is an informed one.
Terms used on this page
- Epoxy
- A two-part thermosetting resin used as a base coat. It bonds strongly into ground concrete and builds thickness well. It is aromatic, so it ambers and chalks under sustained sunlight — a documented property of the chemistry, and the reason it belongs underneath a UV-stable topcoat.
- Polyaspartic
- An aliphatic polyurea coating chemistry used as a clear topcoat. Being aliphatic, it is UV stable, which is why it goes on top of an epoxy base rather than the other way round. It also cures quickly, which shortens return-to-service but narrows the window an installer has to work the material.
- Concrete surface profile (CSP)
- The ICRI scale describing how rough a prepared concrete surface is, from CSP 1 (nearly smooth) upward. Coating manufacturers name a target CSP in their data sheets; diamond grinding is how that profile is produced repeatably.
- Spall
- A patch where the concrete surface has flaked, chipped or broken away, leaving a shallow crater. Spalls are repaired and levelled as their own step before any coating is applied.
- Moisture vapor transmission
- Water vapor moving upward through a concrete slab from the soil beneath it. If the surface is sealed, pressure can build under the coating and lift it osmotically. Recognised test methods are ASTM F1869 (anhydrous calcium chloride) and ASTM F2170 (in-situ relative humidity probes).
- DCOF
- Dynamic coefficient of friction — the measured standard for slip resistance, tested under ANSI A326.3. It is a number produced by a test, which is why we describe slip resistance in terms of what aggregate is added rather than with adjectives.
Questions
Warehouse and industrial questions
Can you coat around our racking?
Often, yes. Fixed racking that cannot be dismantled gets worked around, and we assess during the survey what genuinely has to move versus what can stay. Coating up to and around bolted racking is more cut-in labor, so it is itemized.
Will the coating handle forklift traffic?
That is a specification question answered at the survey. Hard wheels under load put concentrated, shearing stress on a floor, so the system gets chosen for the actual traffic rather than defaulting to a residential build. What matters most is that the base coat is bonded to a properly ground slab.
What happens with our control joints?
They get detailed rather than coated straight across. Joints move for the life of the slab, and a continuous film run over a moving joint cracks along it. Joint treatment is surveyed in linear feet and priced as its own line.
Do you do line striping for traffic lanes?
Yes, quoted separately from the floor coating. Lanes, walkways, equipment zones and hazard marking are frequently phased differently or added after the coating is in service.
Can you work overnight so we do not lose production?
Yes. Overnight and weekend work, and phasing by zone, are both standard. Each adds mobilization cost, which you see broken out so you can weigh it against the cost of downtime.
Our existing warehouse coating is peeling. Can you go over it?
No — a new coating over a delaminating one fails with the old one. The failed material has to come off mechanically first. That is usually the largest single variable in a re-coat quote, and it is covered on our coating removal page.
Get an itemized quote after we have seen your concrete
Every estimate is free, happens onsite, and comes back itemized. No payment is due upfront.
- $2M general liability + workers’ comp
- 5-year workmanship warranty
- No upfront payment