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Are Porcelain Tiles Suitable For Underfloor Heating?

by Sally Littlestone on Apr 11, 2023

Stiled twyford silver indoor porcelain tiles suitable with underfloor heating
Porcelain tiles have become a popular choice for flooring due to their durability, versatility, and aesthetic appeal. One question that often arises when considering porcelain tiles for a flooring project is whether they are suitable for underfloor heating. In this blog post, we will explore the suitability of porcelain tiles for underfloor heating and provide some insights into their installation and maintenance.
stiled twyford sand indoor porcelain tiles suitable for underfloor heating
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Stiled Twyford Sand Indoor and Outdoor Porcelain Tiles
Underfloor heating has become a preferred method of heating in many homes, as it provides a comfortable and energy-efficient heating solution. There are two types of underfloor heating systems: electric and water-based. Electric systems use heating mats or cables that are installed directly beneath the flooring, while water-based systems use a network of pipes that circulate hot water beneath the floor.
water based system for underfloor heating
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Water based system for underfloor heating
Porcelain tiles are compatible with both electric and water-based underfloor heating systems. However, it is important to choose the right type of porcelain tile to ensure that the system works efficiently and effectively. Here are some factors to consider when selecting porcelain tiles for underfloor heating:
Thermal conductivity: The thermal conductivity of the porcelain tile is an important factor to consider when installing underfloor heating. The higher the thermal conductivity, the better the heat will be transferred from the heating system to the room. Porcelain tiles with a low thermal conductivity may insulate the heat, reducing the efficiency of the underfloor heating system. Therefore, it is recommended to choose porcelain tiles with a thermal conductivity of at least 1.5 W/mK.
Thickness: The thickness of the porcelain tile can also affect the performance of underfloor heating. Thicker tiles take longer to warm up and may not distribute heat evenly throughout the room. Therefore, it is recommended to choose porcelain tiles with a thickness of 10mm or less.
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Installation: Proper installation is crucial for the effectiveness of underfloor heating. The tiles must be installed with an adhesive that can withstand the heat generated by the underfloor heating system. It is recommended to use a flexible adhesive that can accommodate the expansion and contraction of the tiles due to the changes in temperature.
Maintenance: Porcelain tiles are low maintenance and easy to clean. However, it is important to avoid using harsh cleaning agents that can damage the tiles or the underfloor heating system. It is also important to avoid heavy furniture or appliances that can put pressure on the tiles and affect the performance of the underfloor heating system.  We recommend using Lithofin products which are specifically made for porcelain tiles.
In conclusion, porcelain tiles are suitable for underfloor heating, but it is important to choose the right type of tile and ensure proper installation and maintenance. Porcelain tiles with a high thermal conductivity and a thickness of 10mm or less are recommended for underfloor heating. If you are planning to install underfloor heating with porcelain tiles, it is recommended to consult a professional installer to ensure that the system is installed correctly and works efficiently.
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