Winchester/Camberley Homes New Construction Test House. Design, Construction, and Short-Term Testing in a Mixed-Humid Climate.

摘要

The NAHB Research Center partnered with production builder Winchester/Camberley Homes to build a new construction test house (NCTH) with the support of the U.S. Department of Energy Building America Program. This single-family detached house, located in the mixed-humid climate zone of Silver Spring, Maryland, was completed in June 2011. The primary goal for this house was to improve energy efficiency by 30% over the Building America B10 benchmark by developing and implementing an optimized energy solutions package design that could be cost effectively and reliably constructed on a production basis using quality management practices. This report outlines the features of the house, discusses the implementation of the energy efficient design, and reports on the short-term testing results. During the interactive design process of this project, numerous iterations of the framing, air sealing, insulation, and space conditioning systems were evaluated for energy performance, cost, and practical implementation. The final design featured numerous advanced framing techniques and high levels of insulation. In addition, the HVAC system was built entirely within conditioned space. Short-term testing confirmed a very tight thermal envelope and efficient and effective heating and cooling. Relevant heating, cooling, humidity, energy, and wall cavity moisture data will be collected and presented in a future long-term report.