Lijan Greentech is Leading Supplier of Thermal Insulation for Buildings. Insulation Material work in the Principle of Heat Reflection and Non Conductivity. Roof Cool is Best Product having 45 - 50 micron thick Aluminum Foil Lamination on Both Sides or One Side. It Offers 97 percentage Heat Reflectivity. There is 4 mm Thick Polyethylene, XPE, Sandwich Foam which Ensure Strength for the Material while Installing it. There are Other Materials like Double Side Aluminium Foil with Air Bubble which are Cheaper. Roof Cool is a Cost Effective and Efficient Replacement for Sandwich Panel Roofing and Aluminium Composite Panel Side Wall to Resist Heat Entering in Buildings.