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Floor system selector

We offer a wide range of underfloor heating pipe fixing systems for any type of project.

Selecting the best underfloor heating system for your project

To choose the best underfloor heating system for your project, you will need to consider the floor construction installation requirements and the final floor finish.

When it comes to pipe fixing methods there are lots of options available. The underfloor heating pipe fixing system you select will depend on whether you are working with a new screed or timber floor or an existing floor. Final floor coverings also need to be considered as some offer better thermal conductivity than others, which can impact overall system performance.

Here you will find useful information to help you choose the best pipe fixing system for your project. However, if you would like us to design the most energy-efficient solution for you, please get in touch with our experts.

A system for any floor construction

Screed floor pipe fixing methods

Suitable for new builds and extensions, screed floor pipe fixing systems are typically used on ground floor levels. Heat is transferred from pipes encased in screed to the finished floor level. Underfloor systems are constructed over a slab or oversite base with edge insulation fitted around the perimeter to allow for expansion and contraction, as well as to stop heat conduction from the floor to wall.
 

Timber floor pipe fixing methods

Suitable for new builds, extensions and renovations, timber floor underfloor heating pipe fixing systems are typically used on upper floor levels. Pipe is installed into single or double grooved aluminium spreader plates that transmit heat evenly across the finished floor surface. For existing floor structures install between battens and for new floors, fix between existing joists. If the floor can be raised, floors can also be counter battened to make installation even easier.
 

Existing floor pipe fixing methods

Suitable for retrofit projects, existing floor pipe fixing systems can be used with timber, suspended or solid floors. High-density grooved foil-faced panels hold underfloor heating pipe firmly in place and can be laid directly on top of existing solid floors, under the floor between timber joists or over the floor between battens.
 

Low-profile pipe fixing methods 

Suitable for retrofit projects, low-profile underfloor heating pipe fixing systems are used to keep overall floor height build up to a minimum, without compromising heat output. There are a variety of options available for either timber or screed floor applications.

Screed floor pipe fixing systems

A range of cost-effective underfloor heating solutions for installing pipes under new or concrete/screed floors. Ideal for new builds and extensions, especially ground floor level.

Staple system diagram.

Staple

  • Staples secure pipe to insulation
  • Quick and easy to install
  • The most cost-effective solution
  • High heat output & response
  • Good for regular & irregular shaped rooms
Mounting rail diagram.

Mounting rail

  • Clip pipe onto the rail
  • Ready-made pipe spacing
  • Suitable when insulation is too thin for staples
  • High heat output & response
  • Good for larger regular shaped rooms
Floor panel diagram.

Floor panel

  • Simple grid system for precise layout
  • Ensures minimum pipe bending radius
  • High heat output & response
  • Good for larger regular shaped rooms

Single room pack solutions for screed floors

For single rooms up to 30m2 - including conservatories, bathrooms, kitchens and extensions – we also offer convenient and cost-effective Single Room Packs. Our packs come with everything you need, from underfloor heating pipe to control units and JG Underfloor heating controls.

Timber floor pipe fixing systems

A range of underfloor heating pipe fixing solutions for installing between existing battens or new joists. Ideal for new builds, extensions and renovations, especially first floor level.

Spreader plates from above diagram.

Spreader plates from above

  • Install across timber joists or onto battens
  • Medium heat output & response
  • Low height build up
  • Ideal for upper floor
  • Good for rooms of all sizes
  • Single or multiroom
Spreader plates from below diagram.

Spreader plates from below

  • Install across per-engineered timber joists or onto battens
  • Media heat output & response
  • Low height build up
  • Ideal for upper floor
  • Good for rooms of all sizes
  • Single or multiroom

Existing floor pipe fixing systems

A range of retrofit solutions for existing floors that provide minimal height build up and are suitable for ground or first floor installation.

Underfit diagram.

Underfit

  • Grooved foil-faced panel
  • Ideal for timber or suspended floors
  • Medium to low heat output & response
  • Low height build up
  • Good for rooms of all sizes and shapes
  • Single or multiroom
Overfit diagram.

Overfit

  • Grooved foil-faced panel
  • Install over existing subfloor
  • Medium to low heat output response
  • Low height build up
  • Good for rooms of all sizes and shapes
  • Single or multiroom
  • Suitable for lightweight floor coverings only

Low-profile pipe fixing systems

A range of retrofit underfloor heating pipe fixing solutions for existing floors that provide no height build up and are suitable for ground or first floor levels.

Foil faced diagram.

JG LowFit Foil Faced Panel

  • High heat output from a low-level floor build
  • High compressive strength
  • Excellent heat dispersion
  • Made from 100% recyclable material
Mesh faced diagram.

JG LowFit Mesh Faced Panel

  • Suitable for direct tiling giving a lower overall floor height
  • High compressive strength 
  • Indented return bends for easy installation
  • Made from 100% recyclable material
12mm castellated panel diagram.

JG LowFit Castellated Panel - 12mm

  • High heat output from a low level floor build
  • Adhesive backed for hassle-free installation
  • Overlapping system ensures simple panel alignment
  • Made from 100% recyclable material
15mm castellated panel diagram.

JG LowFit Castellated Panel - 15mm

  • Open grid design allows for good screed adhesion
  • Adhesive backed for hassle-free installation
  • Overlapping system ensures simple panel alignment
  • Made from 100% recyclable material
Mounting rail diagram.

JG LowFit Mounting Rail

  • Pipe is fixed directly on to the rail
  • The most cost- effective solution
  • High heat output
  • Regular & irregular shaped rooms

Other key underfloor heating components

A system for most floor finishes

Some floor finishes offer better thermal conductivity than others and can therefore impact system performance.

Ceramic and stone icon.

Ceramic & stone

Most ceramic and stone floor finishes have a low thermal resistance. The hard surface quickly and effectively transfers heat making it an ideal partner for underfloor heating.

Timber wood icon.

Timber

Due to good heat transfer properties timber floors work well with underfloor heating, especially engineered timber. Temperature should not exceed 27°C and advice should be sought from your supplier.

Vinyl & linoleum icon.

Vinyl & linoleum

Vinyl and linoleum flooring offers low resistance to heat due to its thin layer. Most types of vinyl and linoleum are suitable for use with underfloor heating.

Carpet icon.

Carpet

Carpets provide the highest heat resistance so it is important to ensure the underlay is suitable for use with underfloor heating. The higher the combined tog value of the carpet and the underlay, the lower the heat output.

Underfloor heating system FAQs

Yes, however, extra care may be required depending on the type of substrate. For more information, please speak to one of our UFH experts.

Yes, as it ensures any pipework within the kitchen units are protected from freezing. However, this isn't essential, as it is often difficult to do when retrofitting underfloor heating systems (UFH) in an existing kitchen.

This is normally decided by the architect and builder based on the structural loading of the building. Speedfit underfloor heating systems (UFH) is suited for all modern applications.

There are a variety of components that make up the underfloor heating system (UFH). For more information on the best system for your project and the required components, speak to one of our UFH experts.

Yes, gas boilers are idea for underfloor heating systems (UFH).

Yes, you can tile directly on the JG Lowfit Fibre Mesh panel, other products require a separation layer such as a tile backer board.

Yes, oil boilers are ideal for underfloor heating systems (UFH).

No, modern levelling compounds used as a screed layer are designed to expand and contract without cracking. The design and materials used in our JG Layflat and PEX pipe materials are very resilient and come with a 50-year guarantee for extra peace of mind.

Yes, air source heat pumps (ASHP) and ground source heat pumps (GSHP) are ideal for underfloor heating systems (UFH). In order to integrate underfloor heating systems (UFH) efficiently, please refer to the heat pump manufacturer's instructions.

Yes, underfloor heating systems (UFH) work effectively with most types of vinyl and linoleum. However, it should be noted, vinyl and linoleum flooring offer lower heat resistance due to its thinner construction. For further information on compatibility with your chosen floor covering, please speak to one of our experts.

Yes, underfloor heating systems (UFH) are ideal for use in new build properties. JG Underfloor offers a range of different options depending on your project needs. For more information, visit our system selector page or speak to one of our UFH experts.

Yes, underfloor heating systems (UFH) can be used upstairs. JG Underfloor offers a range of different options depending on your project needs. For more information, visit our system selector page or speak to one of our UFH experts.

Underfloor heating systems (UFH) are suitable for the most common types of heat sources. However, for optimal efficiency, it is most effective when used in conjunction with modern renewable heat sources like ground or air-source heat pumps. For further clarification on compatibility please speak to one of our experts.

Yes, underfloor heating systems (UFH) are ideal for retrofitting in existing properties. JG Underfloor offers a range of different options depending on your project needs. For more information, visit our system selector page or speak to one of our UFH experts.

All underfloor heating systems (UFH) systems are energy efficient, however, generally speaking, a screed UFH system offers marginally better performance. For more information, visit our system selector page or speak to one of our UFH experts.

A low-profile underfloor heating system (UFH) such as the JG LowFit range is recommended when a low floor height build-up is required. JG LowFit includes pipe fixing systems for both solid and timber floors that ensure the height of the floor is kept to a minimum without impacting system performance. For further guidance, please speak to one of our experts.

Most floor coverings will work with underfloor heating systems (UFH) provided that they don’t exceed 2.5 Tog. For more detailed information, please speak to one of our UFH experts.

Yes, however, this is not an ideal solution as the latent heat circulating through the radiator can prevent the underfloor heating system's (UFH) thermostat from switching the system on.

Yes, electric boilers are suitable for use with underfloor heating systems. For further guidance, please speak to our experts.

Yes, however, we advise a combined tog value of underlay and carpet no greater than 2.5.

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