Library

2009 edition of code establishing a baseline for the design and installation of fuel gas systems and gas fired appliances through performance requirements.

2009 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

Fact sheet providing an overview of the FEMA document Wind Retrofit Guide for Residential Buildings.

2012 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2015 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2018 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

Federal statistics about national energy consumption in residential homes in 2020

Article describing methods for venting a vented attic and a roof assembly over an unvented attic.

Report describing the results of a field study of five different ventilation system types in 29 homes in the Pacific Northwest.

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.

Document outlining the current and the proposed draws and estimates typical ratings changes from draw specification changes for typical systems in four cities.

Energy Star web page providing guidance on attic ventilation.

Specifications for water heating systems designed to advance higher performing electric and gas heat pump water heaters.

Voluntary specification for residential, commercial/multifamily, and industrial water heaters and heating systems.

Specification sheet for residential, commercial, multifamily, and industrial water heaters and heating systems.

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...

Technical report describing the SPS (Structural Panel System), an innovative implementation of the "perfect wall" concept, situating environmental control layers on the exterior side of structural components for improved constructability, cost-effectiveness, and performance, validated through the...

Report describing two retrofit duct sealing techniques - manually-applied sealants and injecting a spray sealant, that were implemented in several low-rise multi-unit buildings in North Carolina.

Manual describing best practices or home construction in Alaska and northern climates.

ASHRAE Standard prescribing an field evaluation and test method to measure and score the performance of unitary HVAC systems.

This ANSI/RESNET/ICC standard provides a consistent, uniform methodology for evaluating the airtightness of building, dwelling unit, and sleeping unit enclosures and heating and cooling air distribution systems, and the air flows of mechanical ventilation systems.

Standard covering updates to the expected leakage rates for ductwork constructed to the SMACNA HVAC Duct Construction Standards—Metal & Flexible, duct leakage test procedures; includes recommendations on use of leakage testing, types of test apparatus, and test setup and sample leakage analysis.

Report covering moisture and leakage issues associated with spray foam insulation application to the underside of roof sheathing.

Report describing methodology, analysis, and findings from a case study of a 110-unit retrofit of gas tankless water heaters in a hot/humid climate in Alachua County, Florida.

Standard establishing test methods for determining air leakage in duct systems using fan pressurization in low-rise residential and commercial buildings.

Document providing background and approach for the prep work necessary prior to adding attic insulation - focusing on combustion safety, ventilation for indoor air quality, and attic ventilation for durability.

Report about a project that examines implementation of advanced retrofit measures in the context of a large-scale weatherization program and the archetypal Chicago, Illinois, brick bungalow.

NREL webpage of standard work specification of exterior and interior, attic floors, attic knee walls, and unique installations.

Technical article describing issues and moisture concerns related to weatherization efforts.

Article describing the building science implications of insulating vented or unvented attics.

Article describing the research into insulating vented versus unvented attics.

Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.

Article describing how demand plumbing systems send cold water back to the water heater until hot water arrives at the sink, shower or other fixture where it is needed.

Report describing the best practices for the safe, efficient, and compliant installation of residential air source heat pump water heaters (HPWH) in California, aligning with the state's climate goals and providing guidance for educators, installers, and industry stakeholders.

Case study describing solar thermal and photovoltaic systems in new construction.

Article explaining the importance of regular inspections of boiler systems in maintaining their safety, lifespan, and efficiency.

Case study describing solar thermal and photovoltaic systems in new construction.

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

Case study describing solar thermal and photovoltaic systems in new construction.

Fact sheet describing research sponsored by DOE's Building America program to research the importance of attic air-sealing and best practice attic air-sealing techniques for new and existing homes.

Website with consumer and contractor information about building codes and regulations for solar water heating systems.

Document about testing software predictions of retrofit energy savings in existing homes.

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

Article describing the control layers (air, thermal, and vapor barriers) needed to build homes successfully in very cold locations.

California Office of the State Fire Marshal's homepage for the Building Materials Listing Program, providing builders, contractors, architects, and others with access to a database of fire alarm systems and fire-resistant construction materials including roof coverings, wall, ceiling, and floor...

California Office of the State Fire Marshal's compiled and searchable list of different building materials and their test results for fire resistance.

Training module describing the operation, efficiency, consumer and seller benefits, and cost comparison of Heat Pump Water Heaters (HPWH) against conventional gas, oil, or electric water heaters.

AHRI-hosted directory of residential products meeting CEE's highest tier

Information sheet with information about insulating and ventilating attics.

Design guide providing solutions and tools for designing central heat pump water heater systems in multifamily and other commercial buildings.