Lijan Greentech is Supplier of Thermal Insulation for Buildings. High Temperature Inside Room due to Sun Heat is very serious problem for Houses, Apartments, Flats, Warehouses, Factories, Workshops, Sheds, Auditoriums, Halls, Schools, Colleges, Hotels, Restaurants, Hospitals and All Types of Residential, Industrial and Commercial Buildings. Concrete Roof and Metal Sheet Roof Get Heated Up 10 to 20 Degree Higher Than Atmospheric Temperature by Afternoon. It is Very Difficult and Uncomfortable to Stay Under Such Hot Roofing Without Air Conditioning. The Situation Can be Improved a Lot by Providing Heat Reflective Insulation Sheet Under Roofing. Such Insulation can Prevent about 97% Heat from Roofing. Energy Efficiency of Air Conditioning System also Increases by Installing Thermal Insulation Under Roofing and behind Side Walls.