Insulation - Water UFH

Maximise your water underfloor heating efficiency with high‑performance insulation boards. These products help retain heat, reduce energy consumption and improve response times in both electric and water‑based systems by minimising thermal losses through the subfloor.

Our range includes the Cellecta HiDECK‑18 Overlay Board, which combines low thermal resistance for faster heat‑up times with high thermal conductivity for even heat distribution. For an even thinner build‑up there’s the ThermalStream® Underlay, a 10 mm punched‑hole foam underlay that’s ideal for retrofit projects where height is limited. Finally, the Cellecta Micro TB Grooved Insulation Board features ultra‑high compressive strength and grooved channels to accommodate 10–16 mm pipe at 150 mm centres and is perfect for low build‑up underfloor heating installations.

Together, these insulation boards improve heat retention, lower running costs and ensure that your underfloor heating system delivers quick, even warmth across every room.