Existing heat insulation systems like Brick Bat Coba add a lot of weight to the building using a coating system like this not only is it more cost effective and less time consuming it is also light weight and come at a thickness of just 1.5mm instead of the traditional systems which come at an overall thickness of 1 feet. Terrace being one of the most affected part of a building, as it is directly impacted by rain and heat. Being exposed to extreme weathering, during rainy season, improper/ineffective waterproofing systems lead to seepage/leakage down below and during summer it causes rise in temperature of the interiors of the room below hence using a system which combines both waterproofing and heat reflective properties would help solve the problem.