Now days, the challenges caused by climate change are observable in the whole world. Polyurethane helps conserve natural resources and helps preserve the environment by reducing energy usage. With its excellent strength-to-weight ratio, insulation properties, durability and versatility, polyurethane is frequently used in building and construction applications. Sandwich panels have 3 layers with 2 external layers and rigid polyurethane foam with a very low heat transfer coefficient is used as mid layer and core of panel. Both the affordability of these versatile materials and the comfort they provide homeowners have made polyurethane components part of homes everywhere. The buildings with poor insulation would waste energy the most, Therefore, it would be more suitable to use material with high quality in construction application in order to save energy further to environmental protection. As a result, it has been for so long that sandwich panels are being used in building facade insulation as a standard choice. Also, PU cold storage room panel is a kind of board used for enclosing structures, which has good heat insulation and higher intensity. It can reduce the heat transmission caused by difference in the internal and external temperature, and get to maximum efficiency of freezing and refrigeration systems in industry and vehicle applications. Rigid polyurethane foam is used in vehicle panels for sound and energy absorption.