Library

Report describing a project whose goal was to determine the prevalence of residential comfort system faults with a focus on air conditioners and heat pumps, and on key faults that can occur during installation: (1) incorrect refrigerant charge level (undercharge or overcharge); (2) indoor coil...

Report on the design and evaluation of extended plate and beam.

Report (1) compares existing measurement methods, based on field testing in a wide range of buildings, (2) presents the development of two new methods to directly measure exterior and interior leakage of an attached unit, and compares to existing methods; and (3) experimentally evaluates the...

Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Report outlining the steps developers can take to create high-performance standards on a community-wide scale.

Report on heating and cooling air-distribution ducts that are insulated, installed close to the ceiling in a vented attic and covered with attic insulation to minimize energy loss.

Guide about designing and installing closed crawlspaces.

Report on the field evaluation of whole-building approaches and estimation of the relative contributions of select technologies toward reducing energy use related to space conditioning in new manufactured homes.

Report describing research about a test implementation of an unvented tile roof assembly in a hot-humid climate.

Report targeting the growing number of homes utilizing deep retrofit measures and new construction practices to realize sufficiently lower infiltration levels that require mechanical ventilation as prescribed by ASHRAE Standard 62.2.

Report describing the use of passive vents as a source of outdoor air in multifamily buildings.

Report presenting ways public housing authorities (PHAs) can develop packages of energy efficiency retrofit measures the PHAs can cost-effectively implement with their own staff in the normal course of housing operations at the time when units are refurbished between occupancies.

Case study about a structural sheathing product composed of enhanced EPS rigid foam with OSB adhered on one side.

Report documenting the Transformative Efficiency and Automation in Modular Homes (TEAMH) project, which evaluates the integration of advanced building envelope technologies and automation-assisted modular construction to improve residential energy performance and construction efficiency.