Supporting Sustainable Architecture with Advanced UFH Solutions under the Future Homes Standard

New build home with underfloor heating and air source heat pump installed

Future Homes, new model: where UFH earns its keep

The Future Homes Standard (FHS) is pushing new homes towards low-carbon heat and higher-performing fabric. At the same time, the Home Energy Model (HEM) will replace SAP with a more rigorous view of heat loss, emitters and control.

In that context, underfloor heating designed for low flow temperatures and backed by credible room-by-room calculations – becomes a powerful compliance tool. It helps hit targets, frees up wall space for better layouts and builds in future-ready climate control, including cooling.

FHS & HEM. the compliance context for emitters

FHS steers new homes to low-carbon heat and “zero-carbon-ready” fabric. Drafts and consultations point to 2025 publication and alignment with HEM’s first version.
HEM targets more physics-grounded modelling than legacy SAP. That amplifies the value of accurate heat loss and emitter data – the bedrock of UFH spec.

Design moves which pay off in HEM

Fabric first, emitter second. Better U-values and airtightness lower room W/m². you then widen pipe spacing and/or reduce flow temperature – both advantageous for heat-pump efficiency and comfort.
Low-temp by design. Use UFH layouts which hit setpoints at 35-45 °C flow where feasible. This builds in resilience if the heat source changes.
Space quality & accessibility. UFH frees wall area for layouts and furnishings and supports uncluttered interiors – useful when compliance pushes higher glazing ratios which demand careful overheating mitigation.

Don’t ignore overheating (Part O + TM59)

UFH doesn’t “cause” overheating. the risks are primarily solar gains and ventilation strategy. However, it can be a key part of the solution.
Mitigation. Use TM59 for risk assessment alongside Approved Document O. Consider thermal mass, shading. And purge ventilation.
Active Cooling. With a reversible heat pump, UFH can provide radiant cooling. Circulating chilled water (16-19°C) turns the floor into a comfortable, efficient cooling surface. This requires dew point control in the specification to prevent condensation.

Acoustic Performance in Multi-Storey Buildings

For apartments and multi-storey homes, the floor build-up must meet the acoustic requirements of Approved Document E.

Impact Sound. A standard UFH build-up can affect impact sound transmission. Specify a combined thermal and acoustic insulation layer designed and tested to meet the regulatory requirements, ensuring comfort is not created at the expense of noise.

Delivery playbook for housebuilders

Standard details. UFH build-ups (screed and plate) with pipe spacing bands tied to room heat-loss tiers and common floor finishes.
Controls. Room-by-room thermostats/actuators and weather compensation to meet Part L expectations.
Evidence pack. Installation photos, insulation continuity. And commissioning logs.

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