Overlay® Plus underfloor heating

Overlay® Plus is our latest innovation and our best practice Over the Floor system. This low profile system is installed directly over an existing structural floor (solid or timber floor deck) for minimal disruption to your build or renovation project.

The new Overlay® Plus boards have a dense insulation core and an aluminium lining which increases the product’s heat output by 15% compared to traditional Overlay®. Pipe is simply laid in grooves within the boards’ surface. The boards have a felted finish so tiles can be applied directly without the need for an intermediate surface – further reducing build up of the floor height.

As well as increased system performance, the boards offer a host of installation benefits too. They are large but lightweight so can cover large floor spaces very quickly. They are ultra sturdy but easily cut to any shape with a simple blade, meaning no need for power tools and a virtually dust free installation.

If you are unsure which Polypipe Underfloor Heating system is the best fit for your project, our team of in-house specialists would be happy to discuss your project and make a recommendation. Simply give us a call on 01709 772380.

Features & benefits of the Overlay® Plus system

  • Best practice over the floor system
  • 15% more efficiency
  • Low profile system – only 18mm high
  • Larger lightweight boards
  • Easy to cut and shape so fits any size and shape room
  • Can be tiled directly on to

All Overlay® Plus panels are also available in an acoustic version!

It’s the same low profile system you know and love but with a layer of synthetic rubber on the bottom side to reduce the transmission of impact noise by up to 31dB.

12mm diameter grooves are cut into the board’s top surface to house the heating pipes.

Key design information

Typical heat output at 50ºC mean water temperature 82W/m2
Recommended design flow temperatures 45-50oC
Maximum circuit length 100m (12mm pipe)
Maximum coverage per circuit 14m2 at 150mm pipe spacing
Dimensions 1200mm x 600mm x 18mm

Introducing the evolution of Overlay® Plus

Overlay® Plus Enhanced Panel

  • Pipe return bends now included within the panel
  • Connection pipe runs now included horizontally at the end of the panel
  • No need for plastic end returns
  • Faster installation method
  • Easy to cut and shape so fits any size and shape room
  • No need to screed over connection pipes or fill voids, saving installers time and money on additional products
  • Complete floor system solution ready to take finished floor coverings
  • Available in an Acoustic version

Overlay® Plus Enhanced Multi-Directional Panel

  • Panel allows for multi-directional routing of connection pipes to get you to each heating zone
  • Connection pipes spaced at 50mm centres
  • Can be fitted the same as the Overlay® Plus Panel with rebated washers/screws or tile adhesive to the sub floor
  • Panels line up perfectly with Overlay® Plus panels
  • Panels can be cut out to provide a 300mm square corner bend to assist with pipe layout
  • Provides a system solution to fit the entire floor no matter the size
  • Replaces the need to screed over connection pipes or voids, saving installers time and money on additional products
  • Available in an Acoustic version

ARDEX products are the perfect compliment to the Overlay® Plus Underfloor Heating System

Download our NEW Polypipe Underfloor Heating and ARDEX technical installation guide to find out more

Get a FREE underfloor heating quote today

Simply send us your plans and we’ll send you a quote back within 3 hours*

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* For single home projects where all required information is supplied, our usual turnaround times for quotes will be within three hours, within our normal working hours of Monday to Friday, 9am-5pm. A member of our Underfloor Heating team will contact you promptly to discuss the details of your project and confirm your expected quotation time.

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