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Underfloor heating system insulation boards and tile backer boards are under-flooring boards specially designed for use with underfloor heating systems.

Why use underfloor heating insulation boards?

An installed underfloor heating system produces heat that travels in two directions – upwards into your floor and room, and downwards into the sub-flooring and screeds. While the former is exactly what is desired, the latter results in the loss of precious heat and energy. Using underfloor heating insulation boards prevents that unwanted loss of heat and energy, ensuring that your underfloor heating system is operating as efficiently as possible. The result is a room that is not only warms up more quickly, but also retains that warmth for longer. The rule of thumb is: the thicker the insulation board, the more effective it is.

Are there different types of underfloor heating insulation boards?

The first type is the tile backer boards for wooden sub-flooring. Tile backer boards are made from a lightweight type of insulated board that is designed to be fixed to prepared wooden sub-floors. Their high compressive strength makes them suitable for use with under tile heating, while their waterproof, rot-resistant design makes them perfect for use in wet areas like bathrooms.

The second type is the thermal insulation boards for concrete sub-flooring. These are designed for use over solid concrete sub-floors and cement screeds. Like tile-backer boards, they are designed to support extensive and long-term static loads. They are also lightweight, waterproof, and rot-resistant.

While installing underfloor heating insulation boards is not always mandatory, doing so will always improve the performance of your underfloor heating system.