Kay Metzeler Guest Blog – Underfloor heating

Posted on November 28, 2016 by CCF



CCF Partner with Kay Metzeler for Underfloor Heating Insulation Solutions

In modern construction, space is key. This combined with an increasing need for thermal efficiency has led to a high demand for underfloor heating in both commercial and residential builds. Kay Metzeler, one of the country’s leading suppliers of Expanded Polystyrene products, recognise this demand and manufacture innovative underfloor heating products in varying grades, types and sizes for all projects.

Underfloor Heating Panels

Kay-Cel Underfloor Heating Panels are manufactured from Expanded Polystyrene (EPS) and have been used on prestigious commercial contracts throughout the UK. Manufactured and tested in accordance with British and European standards, the products contain no CFCs or HCFCs and is fully recyclable. These panels allow excellent thermal conductivity.


Kay-Cel Gridboard

Kay-Cel Gridboard is a solution to quick and easy underfloor heating and is available in various grades and thicknesses. A 50mm grid pattern on a fibre woven film assists the installer to lay the heating pipes in the correct position using the grid pattern. Once in place, the pipe is secured to the board using a ‘U’ clip. The laminate film covering the board is specially designed to hold the ‘U’ clip in place, ensuring that the pipe is held securely in position. This allows a seamless finish for the underfloor heating solution.

Kay-Cel Grooveboard

Grooveboard is a contoured EPS board which can be manufactured in a large number of pipe layout designs to suit various pipe sizes and requirements. These boards can be manufactured in any EPS grade including Super Plus 70 and Super Plus 100 for enhanced thermal performance. Kay-Cel boards are compatible with all types of screed and readily accept all preparatory fixings ensuring that pipes remain in position until they are encased in the floor screed.

Alongside this, Kay-Metzeler have the technical capabilities to develop and produce under floor heating panels and products to customers’ exact requirements, including deflector panels, specialist laminates and many others.

Kay-Cel EPS and the Environment

All Kay-Cel products are manufactured with ISO certification both 9001 and 14001 for environmental issues and has a BRE Green Guide rating of A+. s. Kay-Cel UFH products are 98% air and therefore extremely resource efficient. Kay-Cel EPS is 100% recyclable.

Case Study

While the vast majority of underfloor heating systems within the UK market are solid floor systems, with pipework embedded within a concrete or floor screed, the dry board and floating floor system market is increasing rapidly.

Floating floor systems typically incorporate an insulation panel that has been pre-grooved to accept a plastic UFH pipe and an aluminium heat diffusion plate.The UFH pipe heats the plate and the plate insures an even heat distribution to the underside of a gypsum fibre board decking.

Floating floor UFH systems with a dry-screed deck are preferred over that of the traditional wet screed system as floating floor systems can achieve a much thinner and lighter overall floor build up than most screed based systems. This is important when considering refurbishment of existing buildings where both height and added weight are at a premium.

This was particularly relevant when CCF Customer Mec-Serv were recently asked to provide an underfloor heating and acoustic flooring solution to be incorporated into the grade II listed redevelopment of the Royal Star and Garter Home in Richmond Hill.

The refurbishment nature of the project meant that most floor thresholds were already set with no scope to increase floor build up and the 1920’s concrete sub floors were limited both structurally and acoustically.

For these reasons a Floating Floor system incorporating Cellecta Screedboard and Kay-Cel Gridboard supplied by Kay Metzeler, Fibrefon acoustic layer alongside the customers own UFH pipe were chosen to give the best possible performance while still complying to the restrictive design requirements.

Further details of the Star and Garter redevelopment project can be found here.