Throwing Shade: Practical Applications of Thermochromic Pigment
Annabelle Wang, Isabelle Chung
R C Palmer Secondary
Floor Location : M 102 N

The first step in our innovation was to find out to what extent the exterior colour of a building affects the indoor temperature. Using research, it was concluded that a significant percentage of energy outdoors is absorbed when a darkly coloured exterior is in place, but a much smaller number (about 90% less) is absorbed when the outside of a building is light in colour. The opposite is also true, darker colours being able to absorb and retain heat much more effectively than white or lighter shades.

Based on the above information, it was hypothesized that a paint with the capability of changing from light to dark depending on the temperature outside could effectively and efficiently regulate indoor temperature, saving the user both heating and air conditioning costs throughout the year.

The impact that the paint can have on the environment is crucial, as it can reduce money and resources spent on regulating fluctuating temperatures inside of buildings. By reducing the use of non-renewable energy, the world can lower greenhouse gas emissions that’s slowly deteriorating the environment.

In the end the paint we made was successful in reacting to the outdoor temperature. This ultimately would save the user costs in temperature control, and also reduce the strain on the environment, due to the lower amounts of natural resources used for staying cool in the summer and warm in the winter.