With a large amount of glass in this condo, the owner was facing the afternoon sun for up to 5 hours of the day. This caused the home to feel like an oven when they return home from work. Air con is always used to cool the house down when they are at home.

To install Green 40 film series for their whole house, where ample light can still come in but 67% of the heat is cut off. This instantly cooled the house down dramatically and they do not always need the aircon now.