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JG Underfloor Heating Overlay Boards - Joists

From £21.99
Now £21.99
in stock, ready to be shipped
JG Underfloor Heating Overlay Boards - Joists
From £21.99
Now £21.99
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For delivery on Tuesday

When ordered before 4pm (On weekdays)
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Introducing JG Overlay Boards - Joists, the perfect solution for low profile underfloor heating systems in both new build and renovation projects. These grooved foil faced insulation panels are specifically designed for easy installation of 15mm tubing over existing floor structures, allowing you to incorporate the benefits of underfloor heating within timber flooring structures.

With John Guest Overlay Boards - Joists, you can enjoy the advantages of underfloor heating without the need for extensive modifications or complex installations. The grooved foil-faced panels provide a practical and efficient solution for incorporating underfloor heating into timber suspended or floating floors. By installing 15mm JG Layflat pipe into the grooves of the foil-faced panels, with 200mm centres, you can achieve optimal heat distribution and performance throughout your flooring structure.

Key Features of John Guest Overlay Boards - Joists:

  • Grooved Foil-Faced Panel: The panels feature precise grooves that securely hold the 15mm JG Layflat pipe, ensuring a reliable and efficient underfloor heating system.
  • Easy Installation: The straightforward installation process of John Guest Overlay Boards - Joists saves time and effort, allowing for a hassle-free integration of underfloor heating.
  • Medium to Low Heat Output and Response: The system offers a balanced heat output and quick response time, ensuring optimal comfort and energy efficiency.
  • Low Profile: With its low profile design, John Guest Overlay Boards - Joists seamlessly blend into your existing floor structure, minimizing the impact on floor height and overall aesthetics.

Elevate your underfloor heating experience with John Guest Overlay Boards - Joists. Enjoy the convenience of easy installation, efficient heat distribution, and a low-profile solution for your timber flooring structures. Experience the benefits of underfloor heating without compromising on design or functionality.

Heat output approx 50-60w/m2
Recommended flow temperature 50-60ºC
Maximum circuit length 100m
Typical cover per loop 15-20m2
Individual panel size 350X1200X50(mm)
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    Our customer support is available Monday to Friday 7am-6pm.

    Call us on 01268 567 016

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    Free delivery on all orders

    At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

    We're proud to offer a range of delivery options to suit you, including free delivery on all of our orders or next working day delivery for a fixed price of £4.99

    • 2-3 working days delivery - FREE (Order before 4pm Monday - Friday)
    • Next working day - £4.99 (Order before 4pm Monday - Friday, applies to orders over £19.99)
    • Next working day before 10.30am - £14.99 (Order before 4pm Monday - Friday)
    • Saturday delivery - £29.99 (Order before 4pm Monday - Friday)
    • Free collection from our Basildon warehouse in Essex

    Explore our full delivery policy

    30 days returns policy

    At The Underfloor Heating Store, our customers have 30 days to upgrade, replace or refund their orders.


    At The Underfloor Heating Store, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund. Learn more.


    We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement. Learn more.


    Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order. Learn more.

    Lifetime warranty

    At The Underfloor Heating Store, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our ProWarm range of products.

    Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.

    Find out more

    We'll beat any price

    At The Underfloor Heating Store, our main priority is customer satisfaction. To cement our commitment to this, we are proud to offer our Underfloor Heating Price Match Promise. If you find a lower price on an identical product anywhere else, we will match it – guaranteed!

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