Commercial floor coverings: 4 trade-offs that protect your asset

The UPEC classification rates a covering’s resistance across four factors graded from 1 to 4: Wear underfoot (U), Indentation (P), water resistance (E), resistance to Chemical agents (C). Kytom applies this grid in the design phase on 100% of its commercial projects, aligning the minimum category with the real operational constraint, never with a theoretical building average.

For your Asset Manager and your CFO. An undersized covering triggers a redo at 5-7 years, meaning 35 to 60 EUR/sqm of unbudgeted OPEX (removal, levelling, relaying, downtime). Over 5,000 sqm of commercial space, that is 175,000 to 300,000 EUR of unplanned cash flow and 2 to 4 weeks of unavailable surfaces, valued at the avoided rent (around 50 EUR/sqm/month in the Paris CBD). A precise UPEC trade-off translates into IRR points over your holding period.

A limit to be aware of. UPEC indicates neither acoustic comfort (NF S 31-074 standard on impact noise) nor slip resistance. On wet zones or ramps, we cross-reference with a minimum R10 classification or a PTV coefficient above 36.

Three technical pitfalls compromise a floor’s durability, regardless of the quality of the chosen product. Kytom addresses them systematically before installation.

1. Insufficient substrate preparation. The majority of pathologies recorded on our sites stem from out-of-tolerance flatness or uncontrolled moisture content. The applicable DTU sets the thresholds: flatness under a 2 m straightedge below 5 mm, slab hygrometry below 4.5% CM before laying full-bond PVC.
2. Underestimation of expansion joints. Beyond 60 sqm continuous or 8 linear m, the absence of segmentation generates cracks and edge lifting from the first seasonal cycle.
3. Chemical incompatibility between adhesive, levelling compound and covering. Interactions between components cause delayed discolouration, bleeding or loss of adhesion at 12-18 months.

Our procedure mandates a three-measurement substrate diagnosis (flatness with a 2 m straightedge, hygrometry with a CM meter, alkalinity with a pH meter) and validation by an in-situ 5 sqm sample before general application, in accordance with the DTU and the FIPEC recommendations on adhesives.

When the full diagnosis is not justified. On a partial renovation below 100 sqm, with an existing slab covered for less than 10 years and no visible pathology, a visual inspection and a spot pull-off test suffice. The full diagnosis becomes essential beyond 200 sqm or on a concrete slab poured less than 6 months ago.

In a modern commercial office, your covering frequently rests on a raised floor 100 to 300 mm high. This plenum houses four parallel conduits whose MEP coordination governs the setting out of the finished floor: high-voltage electrical distribution, low-voltage and data, ventilation via flush supply grilles, and localised fluid networks.

Kytom systematically aligns the setting out of carpet tiles or PVC sheets with the raised access floor grid, typically 600 x 600 mm. This alignment allows intervention on any plenum panel without destructive cutting, which secures your routine maintenance (changing a data socket, relocating a supply grille, working on a fire cable) throughout the asset’s holding period.

A 50 mm setting-out offset between covering and raised access floor generates, over the building’s lifespan, 8 to 12% of tiles damaged during maintenance interventions. Over 2,000 sqm of floor plate, that represents 160 to 240 sqm to replace on average over ten years, or 6,000 to 12,000 EUR of supplies and as much again in labour, not counting the visual effect of a patchwork of shades after five years of operation.

Our site manager validates the setting-out plan with your MEP engineering office before ordering materials. The grids are transferred onto the execution drawing, the perimeter cuts are calculated to preserve modularity, and a sample module is laid in the presence of the client before general deployment.

1. Flow audit and UPEC matrix
   Our team instruments your spaces over 5 working days (footfall counting, soiling typology survey, mapping of wet and chemical constraints). We deliver a matrix that assigns each zone its target UPEC classification, cross-referenced with your amortisation period and the actual reconfiguration pace of your floor plates. Duration: 1 to 2 weeks depending on the surface area.
2. Substrate diagnosis in 3 measurements
   Before any costing, we measure flatness with a 2 m straightedge, hygrometry with a CM meter and alkalinity with a pH meter, in accordance with the DTU. The report identifies the levelling zones, the moisture thresholds to respect before installation, and the adhesive-levelling compound-covering compatibilities to validate. Deliverable: technical report within 5 working days.
3. Validation by in-situ sampling
   We lay 5 sqm of the chosen adhesive-covering pairing on the most constrained zone, in the presence of the client. This sample validates the shade under real lighting, the adhesion performance, and the setting-out result. No global order is placed before this green light.
4. Setting-out and raised access floor coordination
   Our site manager aligns the laying plan with the raised access floor grid (600 x 600 mm) in coordination with your MEP engineering office. The perimeter cuts are calculated to preserve maintenance modularity throughout the asset’s holding period.
5. Installation and handover in 4 to 14 weeks
   Installation in batches, quality control by sampling, commissioning cleaning, and delivery of the maintenance file (product references, batches, care sheets, ten-year warranties). Average lead time observed across the Kytom portfolio: 4 weeks for 500 sqm, 14 weeks for 5,000 sqm multi-zone.