Heat-Pak Dual Overlay System.

The Heat-Pak Dual Board Overlay System features easy-to-install covers that provide a smooth, stable, and free-floating subfloor solution, ideal for layering over foil heating mats in underfloor heating setups. Tailored for resilient floor types such as carpet, vinyl, and linoleum, it establishes a uniform, level foundation that promotes the durability of your flooring.

This system comprises two integrated boards: a foundational layer and a top layer, both pre-treated with a contact adhesive that bonds them securely into one robust underlayment. This setup supports attachment of diverse flooring materials. Thanks to its minimal thermal resistance, heat flows efficiently through the surface without loss of performance, ensuring balanced warmth distribution and eliminating uncomfortable hot spots.

Installation skips the need for self-leveling compounds, offering a swift, mess-free, dry process with zero curing time—so you can apply your final flooring right away. It’s a fitter-friendly choice that simplifies the setup of electric cable, mat, foil, or film heating systems compared to traditional wet screed approaches.

Simply secure the heating elements with minimal adhesive tape to keep them in place, then overlay the Heat-Pak panels for permanent flattening and protection beneath the completed floor.