Insulation for cold and heated floors

High-Performance Floor Insulation

Whether for residential housing, commercial spaces, or industrial halls, proper floor insulation ensures long-term energy efficiency and thermal comfort. PIR Thermotop thermal insulation boards are a state-of-the-art solution that helps optimize overall construction costs, reduces heating and cooling expenses, maximizes usable space, and installs quickly and easily. Furthermore, they are an excellent alternative to conventional insulation materials (expanded/extruded polystyrene and mineral wool). Thanks to their extremely low thermal conductivity, λ = 0,021W/mK, the result is a high-performance floor insulation system.

The ideal solution for insulating unheated and heated floors

In projects involving floor insulation with integrated electric or hydronic underfloor heating systems, the role of thermal insulation becomes even more critical: directing heat into the room’s interior. PIR THERMOTOP AL boards, featuring aluminum foil facings, limit heat transfer to the lower structural layers and contribute to an even heat distribution across the radiant screed, reducing heating times and energy consumption. Even in simple unheated floor insulation setups without heating systems, PIR boards help maintain a comfortable surface temperature and reduce thermal bridging at joints, thanks to their L-edge profile.

Maximum durability and compliance with nZEB standards

In addition to their high thermal performance, PIR boards stand out due to their high compressive strength (between 120 and 150 kPa) and excellent long-term dimensional stability. Unlike other materials that can settle or shrink under the weight of the screed, THERMOTOP boards maintain their shape, dimensions, and thermal insulation properties over time. This solution contributes to creating a warm and stable floor while meeting the nZEB energy efficiency requirements applicable in Romania.

Practical guide and complete technical details

Want to learn how to achieve an energy-efficient floor with an insulation system up to 40 mm thinner than traditional materials, or discover the layer structure of an insulation system for heated or unheated floors? We invite you to read our full article on the blog.