| Fact #1 |
| Energy-efficient, low-maintenance, comfortable houses cost the firm 5 percent to 10 percent more to build ($140/ per square foot x 1,500 square feet) and sell for $300,000 to $400,000. |
| Fact #2 |
| One house built by Vali surpassed LEED Platinum with a blower door test rating of 0.68 and HERS score of 20. |
| Fact #3 |
| A 3.6 kW solar PV system costs roughly $9,000 and offsets about 6,000 kW of energy, creating a net-zero home and saving the owners $700 per year. |
| Fact #4 |
| Advanced framing techniques reduce the amount of lumber by 20 percent and allow for more insulation, upping the R-value. |
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