ThermoSoft WarmStep Radiant Heat Mats are a non-embedded electric radiant heating method that can be used with direct nail and glue down wood or engineered wood flooring. Specifically engineered for easy installation, no embedding or self-levelling cement needed for WarmStep, making it it ideal for direct nail and glue down installations because it is ultra-thin and breathable, and it is compatible with most underlayments, vapor barriers and subfloors.