Use light colored shingles. Always seal sole plates. He demands air infiltration control. He is concerned with the use of hazardous building materials in the home. He uses energy efficient water heaters.
All windows are double pane.
The ceilings in his homes have R-30 insulation. The walls in his homes have R-19 insulation. Examine your own home. List as many energy saving devices as you can find. Read each statement carefully.