Installation of EPP Insulation Layer and Galvalume Sheet ※Confirm the location of the EPP lead wire insertion part. Cutting work of Galvalume and EPP after installing the Insulation Layer & Heating Panel. Install Elector Dry Ondol System. Install Heat Radiating Bars. Insert EPP Lead Wire. Lead Wire Sleeving Work. Insulation Work using Adhesive Tubing. Taping Work to Secure the Heating Panel. Thermostat Installation after Heating Panel Construction is Complete.