The Q value is a measure of heat loss from a house. The lower the Q value, the higher the comfort and energy efficiency. i-cube surpasses the Next-Generation Energy Saving Standard and realizes large savings in cooling and heating costs as well as CO₂ emissions.

*Above figures have been calculated based on our model plan house (total floor area: 149.79 m²). /area: Tokyo /cooling period: May 5 - October 23 /cooling settings: all living spaces (LDK, Japanese style room, main bedroom, western style room, western style room 2), air conditioning (24-hour setting), room temperature of 27℃, humidity 50℃ /heating period: November 2 to April 22 /heating setting: entire structure (except storage), floor heating (24-hour setting), temperature of 22℃ /electricity costs: Tokyo Electric Power Corp. "Denka Jouzu Plan" using heating load calculation software SMASH.

For healthy and comfortable houses with low heating and cooling costs, there are four technologies responsible.

Double insulated panel systems consist of external 50 mm layer and internal 140 mm layer covers the entire building envelope.

Our PVC Windows feature the highest level of industry standard in heat insulation, sound insulation and wind resistance.

Energy efficiency reaches the highest industry standards. A heat recovery efficiency of more than 90% and humidity recovery efficiency of more than 71%.

Shading sunlight in summer and blocking chilly air in winter provides large improvements in heating and cooling energy loss created by windows.