How do you install LVT (Luxury Vinyl Tile) flooring properly?

Quick Answer: LVT installation in the UK must comply with BS 8203:2017 (Installation of resilient floor coverings) and manufacturer specifications. Subfloor moisture must be below 75% RH (or 4% by weight CM) before laying glue-down LVT, and the surface must be smooth to BS 8204-7 SR1 tolerance (3mm under a 2m straight edge). Click LVT requires a perimeter expansion gap of 6-10mm and a maximum continuous run of 12m without a transition.

Summary

Luxury vinyl tile (LVT) has become the dominant resilient floorcovering in UK domestic and commercial refurbishment. It comes in two main installation formats: glue-down (dryback) tiles or planks bonded with pressure-sensitive or hard-set adhesives, and click-lock (loose-lay or floating) systems with a rigid SPC or WPC core. Each format has distinct subfloor, layout and edge requirements that determine whether the finished floor lasts the manufacturer's 15-25 year warranty or fails inside a year.

This guide covers the practical installation choices the fitter must make: adhesive selection, layout setting-out, expansion provision, and the most common reasons LVT fails on UK jobs. It assumes the subfloor has already been prepared to the standards in BS 8204-7 and the levelling guidance covered in the related articles below.

UK climate and heating patterns matter more for LVT than the marketing literature suggests. A floor laid in February in an unheated room and first warmed in October will move significantly. Conditioning the product, sealing the building envelope, and respecting expansion provision is what separates a professional installation from a callback.

Key Facts

• BS 8203:2017 — Installation of resilient floor coverings is the governing UK code of practice for LVT and vinyl
• Subfloor moisture limit — 75% RH measured to BS 8201/BS 5325 hygrometer method, or 4% CM by weight for sand/cement screed
• Anhydrite screed — must be sanded back, surface laitance removed and moisture verified at 75% RH before LVT laying
• Surface regularity — SR1 (3mm gap under a 2m straight edge) is standard; SR2 is the minimum for thin LVT (2-3mm wear layer)
• Subfloor smoothness — even minor pinholes and trowel marks telegraph through 2-3mm LVT within weeks
• Acclimatisation — 48 hours minimum at 18-27°C and stable RH 35-65% in the room of installation, with cartons opened
• Glue-down adhesives — pressure-sensitive (tacky-set) for dimensionally stable products; hard-set acrylic for heavy traffic or wet areas
• Open time — pressure-sensitive adhesives typically 20-40 minutes; do not lay into wet adhesive
• Click LVT expansion gap — 6-10mm perimeter gap; expansion strip required at room boundaries and runs over 12m
• Underfloor heating compatibility — surface temperature must not exceed 27°C at the LVT/screed interface
• UFH commissioning — heat cycle to BS EN 1264-4 must be completed before LVT installation, then dropped to 18°C during laying
• Roller weight — 45-68kg three-section roller, passed in both directions to fully wet out the adhesive
• Edge detail — scribe or cut tight to walls then trim back to maintain expansion gap (for click systems)
• Plywood overlay — 6mm WBP or P5 chipboard suitable when subfloor cannot be levelled; screw at 150mm centres
• DPM — surface DPM (epoxy or polyurethane) required if subfloor exceeds 75% RH but cannot be left to dry naturally
• Acoustic performance — must meet Approved Document E ΔLw requirements for separating floors (typically integral or separate underlay rated to 19dB+)
• Wear layer thickness — 0.3mm domestic light, 0.5mm domestic heavy/commercial light, 0.7mm+ commercial heavy
• Bevel detail — micro-bevelled edges show grout-style lines but can collect dirt without a sealer in commercial use
• CE/UKCA marking — required under Construction Products Regulations for resilient flooring meeting BS EN 14041

Quick Reference Table

Detailed Guidance

Glue-Down LVT: adhesive selection

The single biggest installation decision for dryback LVT is adhesive type. UK suppliers (F. Ball, Bostik, Mapei, ARDEX) offer three broad categories:

Pressure-sensitive (tacky-set) adhesives — applied with a fine-notch trowel (typically A2 or A4), left to flash off for 20-40 minutes until tacky to the touch, then the LVT is bedded into the partially dried film. These give a long working time, allow tiles to be lifted and repositioned, and are forgiving for the fitter. They are the right choice for residential and light commercial use where dimensional stability is acceptable.

Hard-set acrylic adhesives — applied wet, LVT laid into the wet glue, and the bond cures as the water evaporates through the adhesive. These give the strongest bond and are required for commercial use, heavy traffic, contact with wheeled loads, and any area where temperature swings will be significant (south-facing rooms with bifold doors, conservatories converted to LVT, communal hallways). Working time is short (10-15 minutes) so set out before opening the pot.

Two-part polyurethane adhesives — required for wet areas, washrooms, kitchens with potential standing water, and any LVT installation over UFH running at the upper end of its operating range. PU adhesives are water-resistant once cured and have a higher temperature tolerance than acrylic.

Always check the manufacturer's recommended adhesive against the LVT data sheet — using the wrong category voids the warranty regardless of how well the floor looks on completion.

Click LVT: setting out and expansion

Click LVT (SPC core or WPC core) floats over the subfloor without adhesive. The installation logic is the same as engineered wood: a continuous mat held in place by perimeter restraint.

Start by establishing the longest visual run, usually parallel to the dominant light source from the largest window. Calculate the width of the final row — if it would be less than 60mm, adjust the starting row so both edges finish at roughly half-plank width. This prevents the "sliver" finish that immediately reads as amateur.

The expansion gap is non-negotiable. Use 8mm spacers along every wall, every fixed obstruction (kitchen units, fireplaces, doorframe linings) and at every doorway threshold. Skirting boards or scotia trim cover the gap. Avoid trapping the floor under fitted kitchens — slide the LVT under the unit kickboards or fit kickboards last so the floor can move beneath them.

Continuous runs over 12m require a transition strip (T-bar) to break the floor into independent expansion zones. The same applies where the floor passes from one room to another through a narrow opening — fit a T-bar in the doorway even if the same product continues either side. The room cross-section is narrower than the floor's expansion capacity at the corners.

Subfloor preparation specifics for LVT

Thin floorcoverings show every defect in the substrate. For LVT specifically:

• Fill all cracks wider than 0.5mm with flexible epoxy or rapid-set repair compound
• Remove all paint splashes, glue residue from previous flooring, and trowel marks with a multi-tool or scraper
• Apply a primer matched to the smoothing compound (acrylic for sand/cement, specific anhydrite primer for calcium sulphate screeds)
• Trowel-apply smoothing compound to 3-5mm depth for general regulation; pump-apply to 25mm if levelling
• Allow compound to cure fully before LVT installation — 24 hours for most fast-track compounds at 20°C, longer if cooler

Underfloor heating screeds need particular care. Anhydrite (calcium sulphate) screed forms a chalky laitance on the surface as it dries. This must be sanded off with a 60-grit floor sander before priming and smoothing, or the bond between screed and smoothing compound will fail and pull the LVT with it.

Layout principles for visual quality

LVT in plank format should follow these layout conventions:

• Stagger pattern — minimum 150mm offset between adjacent rows; 300-450mm gives the most natural appearance
• Avoid repeating patterns — most LVT ranges have 6-8 unique plank face designs; mix planks from multiple cartons to avoid pattern repeats falling next to each other
• Direction — planks run with the long axis parallel to the dominant light source unless the room dictates otherwise
• Herringbone or chevron — possible with specific LVT ranges; requires accurate setting-out from a centreline and 50% more cutting time
• Borders and feature strips — define rooms or zones with contrasting strips; common in kitchens and entrance halls

Edge details and transitions

The quality of an LVT installation is judged at the edges, not in the field. Practical edge details:

• Skirting first vs flooring first — skirting first gives a cleaner cut to scribe; flooring first allows skirting to cover the expansion gap (preferred for click systems)
• Scotia trim — quadrant or scotia covers small gaps where skirting was retained
• Door thresholds — taper-fit ramp where LVT meets carpet (different finished floor heights); flush T-bar for same-height transitions
• Around pipes — drill 18-22mm hole then make two cuts back to the wall edge; reassemble with adhesive after fitting around pipe
• Kitchen kickboards — fit kickboards after LVT to allow expansion; never trap under units
• Fireplaces and hearths — leave 6-10mm gap and seal with neutral-cure silicone matched to the LVT colour

Rolling, conditioning and aftercare

Glue-down LVT requires rolling with a three-section roller (45-68kg) in both directions immediately after laying, and again 1-2 hours later as the adhesive bites. This expels air, ensures full transfer of adhesive onto the LVT back, and forces the tiles into the glue bed.

After installation:

• Do not wet-clean for 72 hours (glue-down) or 24 hours (click)
• Protect with breathable hardboard or felt-back roll for any follow-on trades (kitchen fitting, decorating)
• Never use solid plastic sheeting on glue-down LVT in the first 7 days — adhesive needs to off-gas
• Provide care instructions to the customer: pH-neutral cleaner, no steam mop on click LVT (will swell the locking edges)

Frequently Asked Questions

Can I lay LVT over existing tile or vinyl?

Yes for click LVT, conditionally for glue-down. Existing tile must be sound, bonded, with no hollow areas, and grout lines below 4mm wide. Wider joints will telegraph through within months. Apply a 3-5mm smoothing compound over tiles regardless. Existing sheet vinyl can be left in place only if you can confirm it is fully bonded and asbestos-free — sheet vinyl manufactured before the year 2000 may contain asbestos backing and must be tested or removed by a licensed contractor under CAR 2012.

How do I install LVT over underfloor heating?

Switch off UFH 48 hours before installation. Allow the floor to drop to 18°C before laying. Lay LVT and roll as normal. Wait 7 days after installation before re-commissioning UFH, then ramp up the flow temperature by no more than 5°C per day. Maximum surface temperature at the LVT/screed interface must not exceed 27°C — this is an LVT product limit, not a heating system limit, and requires careful setting of the manifold flow temperature.

What's the difference between SPC and WPC core click LVT?

SPC (Stone Polymer Composite) has a denser, more rigid core with limestone filler. It is more dimensionally stable, suits UFH better, and tolerates SR2 subfloors. WPC (Wood Polymer Composite) has a slightly softer, foamed core. It is warmer underfoot but less stable in temperature swings and not generally recommended over UFH above 22°C surface temperature.

How long should LVT acclimatise before installation?

48 hours minimum at the installation room temperature (18-27°C) with cartons opened but tiles still stacked. If the LVT was delivered from cold storage or a cold van in winter, extend to 72 hours. Failing to acclimatise is the most common cause of gapping in click LVT during the first heating season.

Why does my LVT show seams six months after installation?

Three usual causes: (1) subfloor moisture above the 75% RH limit at time of laying, pushing adhesive bond apart as it migrates; (2) adhesive applied too thickly or trowel too coarse, leaving adhesive ridges that telegraph; (3) inadequate rolling, leaving air pockets that bubble up under thermal cycling. Lift and re-bed affected tiles, after diagnosing and fixing the underlying cause.

Regulations & Standards

• BS 8203:2017 — Installation of resilient floor coverings. Code of practice. Governing UK standard for LVT.

• BS 8204-7:2003+A1:2008 — Screeds, bases and in-situ floorings. Pumpable self-smoothing screeds. Cross-reference for substrate preparation.

• BS 8201:2011 — Installation of flooring of wood and wood-based panels. Relevant where LVT is laid over a ply or chipboard substrate.

• BS 5325:2001 — Installation of textile floor coverings. Cross-reference for hygrometer moisture testing method.

• BS EN 14041:2018 — Resilient, textile and laminate floor coverings. Essential characteristics. Mandatory CE/UKCA marking standard.

• BS EN 1264-4 — Water-based surface embedded heating systems. Installation and commissioning, particularly relevant for LVT-over-UFH.

• Building Regulations Part E — Resistance to passage of sound. Separating floors must meet ΔLw requirements; LVT with rated underlay required in flats and HMOs.

• Construction Products Regulations 2013 — UKCA/CE marking required for resilient flooring meeting BS EN 14041.

• CAR 2012 — Control of Asbestos Regulations. Required where lifting pre-2000 vinyl sheet or backing.

• COSHH 2002 — Adhesive vapours, particularly hard-set acrylics and PU adhesives; ventilate the space and use barrier cream.

• CFA (Contract Flooring Association) Guidance — Best-practice publications cross-referenced in BS 8203 commentary.

• BSI Standards Catalogue — BS 8203:2017 — Governing UK installation code of practice

• Contract Flooring Association — Industry best-practice guidance and member technical bulletins

• F. Ball Technical Service — Recommended adhesives guide and substrate datasheets

• HSE — Control of Asbestos Regulations 2012 — Required reading for any lift of pre-2000 sheet vinyl

• Building Regulations Approved Document E — Acoustic requirements for separating floors

• lvt installation — Shorter installation overview covering glue-down vs click basics

• subfloor preparation guide — Comprehensive substrate prep before any resilient floorcovering

• floor levelling compounds — Smoothing compound selection and application

• screed types — Underlying screed types and drying behaviour

• acoustic underlay selection — Part E compliant underlay choice

• underfloor heating screed — UFH compatibility considerations