Library

Standard that prescribes a testing method to determine the efficiency of space heating and/or cooling thermal distribution systems under seasonal and design conditions. This version of the standard was published in the year 2014, and is available for preview and purchase at the reference link. The...

FEMA report describing findings from an investigation of Hurricane Ike in Texas and Louisiana and residential construction recommendations based on those findings.

Report providing extensive guidance on controlling moisture in building envelopes through proper selection and installation on air, water, thermal, and vapor barriers.

The next generation of building enclosures is a key step toward achieving high-performance goals through decreasing energy load demand and enabling advanced space-conditioning systems. Yet the adoption of high-R enclosures and particularly high-R walls has been a slow-growing trend because...

Report on the use of vapor diffusion ports to reduce moisture issues with buried ductwork in unvented attics in hot-humid climates.

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow. Results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow; results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Conference paper making the case that moving ducts to conditioned space saves energy, is practical for production builders (when accompanied by careful pre-planning), and creates significant andmarketable energy savings for homebuyers.

This report is designed to meet ASHRAE 62.2-2010/2013 and ANSI/ACCA’s 5 QI-2015 protocol, thereby improving the performance of HVAC equipment in new homes when compared to homes built to minimum code.

Guide providing information on controlling attic ductwork sweating.

Fact sheet describing a novel, simplified air delivery system using a plug-and-play model that features 3-inch diameter flexible ducts, efficient fittings, and a simplified installation process that resulted in successful market engagement through commercialization.

Document about development of recommendations to help residential HVAC designers select optimal supply inlet size and system operating conditions to maintain good thermal comfort in low heating and cooling load homes.

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

Research study using modeling to determine optimal combination(s) of components/pumps, high efficiency heat sources, plumbing configurations and controls that result in the highest overall efficiency for a hydronic system.

Manual describing design, detailing, material selection and troubleshooting for plaster, IEFs, and drywall, with information on continuous insulation, air barriers, rain screens, and ratings for fire and sound.

DOE case study findings on raised ceiling interior duct systems.

Research project aimed to verify whether homes in the New Jersey HPwES program achieved 30% source energy savings, and if so, what measures were implemented to achieve them.

Report including an overview of the buried duct research and information the retrofit methodology used to install and test the three existing duct systems, including short- and long-term data collection.

Document presenting results from testing prototype HVAC duct system designs that would locate the entire length of duct work within the air and thermal barriers of the building envelope. These include one that incorporated a high-side supply register, one that utilized a single soffit located within...

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

Report proposes high performance duct measures for inclusion in California Title 24 building energy efficiency standards for 2016.

Fact sheet describing methods for flashing and air-sealing windows and doors.

Research study about a high performance retrofit of an existing brick building (a former convent) into condominiums, all affordable housing.

Report describing procedures for increasing sensible efficiencies through increased flow rates across the air handling unit and increased indoor coil sizes.

Report about cost effective energy-efficient upgrades that can be implemented in the hot, dry Southwest climate.

Document reviewing current and potential ventilation technologies for residential buildings with particular emphasis on North American climates and construction.

Article describing how insulating and air sealing unfinished attic spaces can lead to reduced energy bills in some homes.

Report describing development of a package of energy efficiency measures to achieve 60% energy savings in a test house.

Website with consumer information about duct cleaning.

High-density sidewall cavity insulation can be a major comfort and savings boost. It saves energy by slowing both conductive and convective losses, but only if the right things are done and done right. This always requires site-specific thinking.

Manual that identifies certain leakage limits for ducts and outlines procedures for testing ducts for conformity with air leakage limits that are set forth in a designer’s project specification.

Fact sheet describing building envelope performance measures applicable to residential and small commercial construction.

California Energy Commission report presenting the concept of cool walls and providing guidelines for their building- and climate-appropriate use to conserve energy and reduce emissions.

Job Process sheet for the manufactured housing industry showing how to split and notch insulation batts to fit around electrical boxes and wiring in a factory production environment.

This Standard provides a consistent, uniform methodology for evaluating the airtightness of building envelopes and heating and cooling air ducts and the air flows of mechanical ventilation systems.

Standard describing a test method measuring air-leakage rates through a building envelope under controlled pressurization and de-pressurization which was published in the year 2019 and is available for preview and purchase at the reference link.

Standard that describes the principles for the design of a hot box apparatus and the minimum requirements for the determination of steady state thermal performance of building assemblies when exposed to controlled laboratory conditions. The current version of the standard was published in 2019, and...

Standard describing two techniques for measuring air leakage rates through a building envelope in buildings that may be configured to a single zone which was published in the year 2022 and is available for preview and purchase at the reference link.

Report addressing barriers to information, contractor resources and cost savings associated with steam balancing multifamily buildings.

Information sheet about buried ducts.

Report about the impact on the loads when common safety factors are applied to the load calculation process using two houses that meet the 2009 IECC prescriptive path modeled as the accurate baseline.

Document covering the pros and cons of compact air distribution systems and the decision criteria that must be considered early in the whole-house design process.

Report about proper water heater selection developed to provide step-by-step procedures for evaluating preferred cost-effective options for energy efficient water heater alternatives based on local utility rates, climate, and anticipated loads.

Report describing findings from research related to heating, ventilation, and air conditioning (HVAC) companies that have made the decision to transition to whole house performance contracting (WHPC).

Information sheet describing correct application of stucco.

Standard providing industry-backed information for assessing new and existing HVAC systems, evaluating and verifying the cleanliness of HVAC system components, preventing job related hazards and guiding the cleaning and restoration of HVAC systems to a specific level of cleanliness.

Document providing an overview of the Thermal Bypass Checklist for the ENERGY STAR Qualified Homes program.

Guide describing details that serve as a visual reference for each of the line items in the Thermal Enclosure System Rater Checklist.

Report sumarizing a workshop to initiate a professional discussion about eventual benefits of the application of massive technologies in US buildings.

Information sheet describing transfer ducts and grilles for HVAC.