Tokyo Metropolitan University
Energy Savings:
23% average throughout the year
Overview
Cost: $2 Million
Application: Roof, Outer & Inner wall
Duration: 4 years
Two identical homes were constructed. For comparison Gaina was applied to one home. The data on heating and cooling costs on both homes were collected and compared. The home with Gaina applied on it showed a significant decrease in energy costs.
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Interior coating |
Cooling Period (air conditioning)
June 2nd to September 21st (112 days)
Summer Months - 26.7% reduction
Heating Period
October 28th to April 14th (169 days)
Winter Months - 35.2% reduction
One must take into account the moderate temperature of the locale.
Please note, this experiment was conducted in a shaded area. If a test was conducted in a hot climate with direct sunlight, the effectiveness of the roof application would be more quantifiable.