The results from the final blower door infiltration test at the CreekSide NetZero project are even better than we estimated. The home has just 1/8 the infiltration expected in a typical built-to-code project and is 53% better than the Passive House Institute for high energy efficient building standards. With infiltration this low, maintaining temperature in the home during all seasons should require very little energy consumption. Read more from CreekSide on their blog.