Underfloor depth of underfloor heating provides a comfortable, energy efficient way to warm your home. However, it’s important to understand the impact the depth of your underfloor heating can have on flooring build-up and insulation thickness. This article takes a look at the different underfloor heating systems, their effects on floor heights and the critical role insulation plays in optimising performance.
The most common type of underfloor heating system is a wet or water underfloor heating (UFH) system. In this setup, the pipes are located in a layer of screed which is then poured wet over the pipes to conceal them. The screed is typically a traditional sand and cement mix, but it may also include additives such as fibres to increase strength and durability. UFH pipe installation should be carried out by a professional to ensure that the screed is poured evenly over the pipes and that the pipe layout is appropriate for your specific UFH system.
Determining the Depth of Underfloor Heating: Factors to Consider
Wet UFH systems can be installed in new-build homes as well as renovation projects. They’re a popular option for large open-plan spaces as the pipes radiate heat upwards, avoiding cold spots in corners and giving the space a more consistent temperature.
Alternatively, there are a range of underfloor heating overlay systems available which can be fitted over existing floor structures in homes and extensions. For example, Grant UK’s Uflex MINI low-profile UFH system is a wet system that uses insulated boards with channels routed out for 1.2cm pipes to sit in, which add as little as 15mm to the floor height.