Foiled 400kPa EPS UFH Board 20mm 16mm Pipe 200mm Centres

Description

The Tekwarm Foiled 400 kPa UFH Board is a routed expanded polystyrene (EPS) underfloor heating board with a 400 kPa core and an aluminium foil face. This version is grooved for 16mm pipe at 200mm centres with radius returns as standard, suited to larger, well-insulated floors where wider spacing still meets the room's heat demand, using less pipe per m² than the 150mm version.

Each 1200 x 600 x 20mm board covers 0.72 m². The flat foil face stays clear of the grooves so pipe drops cleanly into the channels while the foil reflects heat upwards. Fit it over solid ground floors on a DPM or over other fully supported substrates in new build and retrofit projects, with an overlay board or screed before the floor finish.

20mm

Board thickness

1200 x 600mm

Board size

0.72 m²

Coverage per board

400 kPa

EPS core

16mm @ 200mm

Pipe and centres

Foil faced

Aluminium foil face

Overlay or screed required before floor finishes

The foil face is not a surface for tiling or laying flooring directly. Fit a suitable overlay board first (Tekwarm recommends at least 6mm over a solid base), or finish with a 6 to 10mm fibre screed over primed boards. Allow for the extra layer in your build-up height.

16mm pipe only; get a design layout first

The grooves suit 16mm pipe at 200mm centres only; pipe is supplied separately. Tekwarm recommends obtaining a professional design layout before installing so outputs match your heat source, boards, overlay and floor finish. A 12mm version is available for 12mm pipe.

Confirm 200mm spacing with a heat loss calculation

At 200mm centres the output per m² is lower than at 150mm. Use it only where a heat loss calculation confirms the room can manage, such as large, well-insulated floors. Bathrooms, rooms with lots of glazing or high ceilings, and floors carrying all the heating load suit 150mm centres.

Solid, fully supported base

Install over a solid ground floor with a suitable DPM, or over other substrates only when fully supported. A solid, well-fixed substrate is crucial to avoid screed cracking or squeaking.

Key features

400 kPa EPS core

Lightweight 400 kPa grade EPS gives extra load-bearing confidence where floor loading is higher than average.

Pre-routed at 200mm centres for 16mm pipe

Routed on one side with radius returns as standard for fast, accurate pipe installation.

Aluminium foil face

Reflective foil directs heat upwards into the room instead of down into the substrate, staying flat and clear of the grooves.

Durable and rot proof

Designed to last the life of the building without loss of thermal performance, rot proof and does not promote mould or fungi.

Environmentally responsible

CFC and HCFC free EPS with a zero Global Warming Potential and low Ozone Depletion Potential (insulation only).

Solid or timber bases

Fits solid ground floors on a DPM or fully supported timber substrates, in new build and retrofit.

Technical specification

Product details

Brand

Tekwarm

Range

Foiled 400 KPA UFH Board

Core material

Expanded polystyrene (EPS), 400 kPa

Compressive strength

400 kPa

Facing

Aluminium foil

Dimensions

Length

1200mm

Width

600mm

Thickness

20mm

Coverage per board

0.72 m²

Pipe and routing

Pipe diameter

16mm

Pipe centres

200mm

Groove pattern

Linear routed channels with radius return grooves

Other layouts

Other routed pipe layouts and patterns available on request

Performance and environment

Durability

Designed to last the life of the building without loss of thermal performance

Biological resistance

Rot proof; does not promote mould or fungi

Manufacture

CFC and HCFC free EPS

Global Warming Potential (insulation only)

Zero

Ozone Depletion Potential

Low

Installation

Sub floor

Solid ground floor on a suitable DPM; other substrates only if fully supported

Fixing on solid base

Optional S1 flexible adhesive plus screws and washers at 150mm along edges and 300mm in the field, countersunk

Overlay required

Yes, before any floor finish; minimum 6mm overlay board over a solid base

Alternative finish

Fibre screed at a nominal 6 to 10mm over primed boards

Timber floors

Boards fitted between joists flush with the top, on noggins, edges fully supported; joists at 400mm or 600mm centres

Foiled 400 kPa board range: 20mm, 1200 x 600mm, pipe size and centres

Pipe

Centres

Version

12mm

150mm

Also available

12mm

200mm

Also available

16mm

150mm

Also available

16mm

200mm

This board

Frequently asked questions

What pipe does this board take?

This version is grooved for 16mm underfloor heating pipe at 200mm centres, with radius returns as standard. The range is also made for 12mm pipe and for 150mm centres, so match the version to your manifold and design.

What does the foil face do?

The aluminium foil reflects heat upward into the room rather than letting it dissipate into the substrate, and stays flat across the surface and clear of the grooves.

Do I need an overlay board?

Yes. The foil surface is not suitable for direct tiling or flooring, so fit an overlay board first (at least 6mm over a solid base), or apply a 6 to 10mm fibre screed over primed boards. Check the floor finish manufacturer's guidance for use over UFH.

Is 200mm centres enough?

200mm centres uses less pipe per m² and suits large, well-insulated floors, but gives lower output than 150mm. Confirm with a heat loss calculation; if in doubt, or for bathrooms, glazed rooms or high ceilings, choose 150mm centres.

How do I fix it over a concrete or screed base?

Bond with optional S1 flexible adhesive and fix mechanically with screws and washers every 150mm along the edges and 300mm in the field, countersunk. Use a levelling screed first if the base is uneven.

Can it go over a timber floor?

Yes, when fully supported. On joists, the boards fit between the joists on noggins, flush with the top, with all edges supported. An overlay then goes on top.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

Calculate

Required Heating

0

Watts

0

BTUs