UFH GUIDE · COBHAM
Engineered oak flooring over underfloor heating in Cobham
UFH and wood flooring is where most Cobham installs go wrong, because the rules differ from manufacturer to manufacturer and the consequences (cupping, gapping, delamination) only show up months later. Cobham's larger family homes often combine open-plan kitchen/diners with cinema rooms, so we plan transitions and expansion gaps carefully across rooms. This page covers exactly how we fit engineered wood flooring over UFH for Cobham homes — temperature ramps, underlay tog, and which products are actually rated for the heat output you've got.
What matters for engineered wood flooring in Cobham
- Maximum surface temperature for any wood floor is 27°C — Cobham new-build manifolds often run hotter and need a thermostat cap.
- Underlay tog should sit under 0.5 — anything thicker insulates the heat back into the screed instead of the room.
- Screed must read below 1.8% CM moisture before any wood goes down. We bring our own meter to every Cobham survey.
- A 14-day temperature ramp (start cold, +5°C per day) protects the boards and the joints during commissioning.
- Engineered planks are dimensionally stable, so they suit UFH and wide-plank installs that solid wood can't reliably handle.
Typical Cobham use cases
Wet UFH on screed in Cobham
Default spec: 14–15mm engineered oak, glue-down, low-tog underlay or fully bonded.
Electric UFH retrofit
Lower output — most engineered oak specs are still safe, but we check the wattage per m² before quoting.
Cobham kitchen extension
UFH in the new section, joist construction in the old — we plan an expansion break at the transition.
Nearby areas we cover
We fit engineered wood flooring across Cobham and the surrounding area, including:
Cobham is part of our wider Surrey coverage — see all services and areas there.
Cobham FAQs
- Can I fit solid wood over UFH in Cobham?
- We don't recommend it. Solid moves too much with temperature swing — engineered oak gives you the same look with proper stability.
- What's the right underlay for UFH in a Cobham flat?
- Something under 0.5 tog, ideally a fully bonded adhesive. We use Sika Bond or F. Ball depending on the screed.
- How long after the UFH is commissioned can you fit?
- Minimum 14 days after final screed temperature, with documented moisture readings under 1.8% CM.
- Do you cover Cobham for UFH installs?
- Yes — and the surrounding Oxshott, Esher, Stoke d'Abernon area. UFH installs are one of our most common Cobham jobs.
Summary
Engineered oak over UFH in Cobham is fine — but only with the right spec, the right underlay, and the right ramp. We do all three in writing before fitting.
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