Library

Report providing builders in marine climates with guidance for building homes that have whole-house energy savings of 40% over the Building America benchmark with no added overall costs for consumers.

Report describing an air distribution system composed of a series of uniformly-sized ducts that terminate in rooms throughout the home and return to a central manifold, similar in fashion to a “home-run” cross-linked polyethylene plumbing system.

Webinar answering code-related questions on duct leakage tests, moisture levels in attics and crawlspaces, combustion equipment in conditioned attics, ventilation in multifamily buildings, and continuous insulation in residential construction.

Document providing guidance to U.S. home builders who want to accept the challenge.

Report summarizing the guidelines for developing and reporting analytical results in a consistent and meaningful manner for all home energy uses.

Research study describing a number of promising foundation and basement insulation strategies that can meet the requirement for better thermal control in colder climates while enhancing moisture control, health, and comfort.

Document providing an example procedure for establishing acceptance-range criteria to assess results from software undergoing BESTEST-EX.

Report describing ventilation system design, including a central fan integrated supply (CFIS) system, made up of a 6-inch outdoor air intake duct connected to the return side of the air handler with a fan cycling control to make sure the fan runs a programmed minimum amount of time.

Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height. Walls with...

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel sheathing (WSP) as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 inches thick over the WSP, and a cladding system installed over the foam sheathing in low...

Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height.

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel (WSP) sheathing as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 in. thick over the WSP, and a cladding system installed over the foam sheathing in low...

Report evaluating the accuracy of the regression technique used in 2006 by using the same least-squares regression analysis on data created from hourly energy simulation software.

Document providing an example procedure for establishing acceptance-range criteria to assess results from software undergoing BESTEST-EX.

Report presenting the process of a residential retrofit project for houses in the states of Florida and Alabama, including findings at the time of reporting and highlights of the first home to meet the target HERS Index of 70.

Fact sheet describing the function of housewrap, its attributes, and common problems associated with its use, including housewrap vs. building paper and housewrap installation; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.

Document presenting a cost effective method that was used by four builders in the Gainesville, FL area to construct interior ducts in over a dozen site built homes.

Report describing the installation and operation of forced-air heating and domestic hot water combi systems in residential homes.

Report describing the most cost-effective ventilation and indoor air quality solutions for multifamily homes that meet ASHRAE 62.2-2016.

Fact sheet describing how typical wall moisture barrier systems work, the moisture barrier system and common problems associated with them; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Document describing a hygrothermal modeling study, including all of the US climate zones, a range of interior humidity levels and numerous arrangements and types of insulation.

Information sheet about mold mitigation.

Study in which a central heat pump water heater system was monitored in detail and used to create a model for assessing similar systems in various climates.

Report highlighting the evaluation methods used and extent of wind washing found in a study analyzing wind washing in thirty-two two-story homes.

Report presenting the results of a study evaluating retrofit solutions for addressing the effects of wind washing on homes.

Report briefly reviewing past research on the effects of occupant behavior on residential energy use and then covering a two year pilot evaluation of a low cost residential energy feedback system installed in twenty case study homes in Florida.

Document with information about the most practical methods to achieve whole-wall performance of R-30 or above.

Report covering the reconstruction of flood damaged homes.

Information sheet describing refrigerant line installation and system startup procedures.

Presentation providing information about correctly installing ductwork in new and existing homes.

Report identifying the steps to take, with the help of a qualified home performance contractor, to seal unwanted air leaks while ensuring healthy levels of ventilation and avoiding sources of indoor air pollution.

Report about a tool developed to enable users to compare a typical 1970s ranch home against an IECC 2009 code-compliant home of the same configuration and against the 70s base case plus retrofits.

This project analyzed combined condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water (DHW) and forced air space heating. Called "combi" systems, they provided similar space and water heating performance less expensively than installing two...

This research paper outlines residential HVAC advanced controls and sensors. It includes a technology review, applications, maintenance and commissioning, occupant behavior and a summary of the state-of-the-art technologies for advanced controls for residential HVAC.

Information sheet about insulation retrofits for the hot-dry climate zones.

Information sheet about exterior insulation in the hot-dry climate zones.

Information sheet about HVAC equipment design to maximize energy efficiency in the hot-dry climate zone.

Information sheet describing solar PV upgrade for an existing homes.

Information sheet describing tankless hot water heating systems in existing homes.

Information sheet describing solar hot water systems in existing homes.

Information about a roof retrofit using a metal, cool roof system.

Information sheet describing tankless hot water heating systems in existing homes.

Information sheet about envelope and roof moisture control retrofit for a home.

Information sheet about window retrofit strategies for hot-dry climates.

Report comparing the performance of seven differing types of residential water heating systems in a side-by-side test configuration over a full year period.

Report covering coating and back venting wood based claddings and trim.

Conference paper describing testing of the performance of fasteners used to attach rigid foam insulation to the exterior of walls.

Article describing the evolution of the IRC to permit class 3 vapor retarders (latex paint) in walls coupled with exterior continuous insulation to allow drying and reduce condensation risk.

Report documenting the process and outcomes involved in achieving the U.S. Department of Energy Zero Energy Ready Home (ZERH) program certification standards while helping homebuilders in Climate Zones 5 and 6 in the Upper Midwest achieve ZERH certification.