Library

Table calculating friction losses for PVC pipe by length.

Document with important building science considerations, designed for members of the residential construction and remodeling industries, as well as owners and managers who work in affordable housing.

Document reviewing ventilation strategies for different climate zones that also includes schematic drawings and photographs of various ventilation installations.

This study used an advanced airflow, energy and humidity modeling tool to evaluate the potential for residential mechanical pre-scooling strategies to reduce peak electriciy demand.

Field manual describing measures to reduce potential hazards and damages caused by and to nonstructural components of a building such as HVAC, appliances, lighting, windows, and furniture during an earthquake.

Article describing moisture and ice dam issues in attics and how to air seal the attic floor.

Technical report describing the research and development of the Ventilation-Integrated Comfort System (VICS) which is a specifically designed, energy-efficient solution that seamlessly integrates with low-capacity, ducted heating, and cooling systems, offering controllable, balanced energy recovery...

A free tool used to calculate the required minimum flow rate of dwelling-unit ventilation.

IECC code note explaining new fan efficacy requirements, along with how to determine which fans are affected by the new fan requirements.

Website with information and research about residential hot water distribution systems.

Report providing guidance on indoor air quality in single-family and multifamily housing for designers, builders, property managers, homeowners, buyers, and renters.

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...

Article from the Institute of Biological Engineering describing reverse osmosis water softeners.

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

Q&A article discussing how to address moisture issues in an attic in a wet and humid coastal climate.

Report on hybrid ventilation methods for insulated and sealed crawl spaces.

Factsheet describing air-sealing.

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

Fact sheet describing field validations of a smart ventilation system to assess its effectiveness in assisting low-load homes in humid environments by maintaining acceptable indoor humidity conditions while ensuring adequate ventilation and indoor air quality.

Article describing building smoke control systems.

Standard that defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings. This version of the standard was published in the year 2016, and is available for...

Standard that defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings; published in the year 2019, and is available for preview and purchase at the...

Standard that describes the minimum requirements for residential buildings to achieve acceptable indoor air quality via dwelling-unit ventilation, local mechanical exhaust, and source control. This version of the standard was published in the year 2022, and is available for preview and purchase at...

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 methods for testing the airtightness of buildings and HVAC equipment.

Test method that measures the capture efficiency of wall-mounted domestic range hoods under controlled conditions in a test chambers which available for preview and purchase at the link and was published in the year 2018.

Presentation on sustainable development including water conservation, passive solar, daylighting, natural ventilation, and land use.

Presentation by the Washington University in St. Louis Office of Sustainability on saving energy.

Information for properly sizing gas lines for use with tankless water heaters and other gas appliances.

Presentation on urban land use and sustainable building design.

Presentation describing how to make a Corsi-Rosenthal Box for air cleaning.

Article describing a field study that test ventilation performance in nine homes and found current ventilation was inadequate to remove PM2.5 and CO2 levels; however, a directly exhausting range hood can reduce peak PM2.5 concentrations by 75% or more.

Paper that illustrates a performance check between the thermal performance of a Massive Insulating Concrete Form (ICF) wall system mocked up and Whole Building Performance criteria such as total space heating and cooling loads (thermal comfort).

Article about installing balanced ventilation systems.

Website providing consumer tips for using natural gas safely in the home, including guidance on cooking, fireplaces, ventilation, pilot lights, piping, etc.

Guide addressing troubleshooting and frequently asked questions about water pressure.

Article describing water leak detection and modes of testing (video camera inspection, hydrostatic pressure, electronic listening, isolation, and digital testing).

BSD-102 report providing guidance about whether to construct a vented or unvented attic based on hygro-thermal zone.

Documents describing Flood Resistant Provisions of codes published by the International Association of Plumbing and Mechanical Officers (IAPMO): the Uniform Mechanical Code; Uniform Plumbing Code; Uniform Swimming Pool, Spa and Hot Tub Code; and Uniform Solar, Hydronics and Geothermal Code (Uniform...

The International Association of Plumbing and Mechanical Officials (IAPMO) has been protecting the public’s health and safety for ninety-three years by working in concert with government and industry to implement comprehensive plumbing and mechanical systems around the world. Main website.

Article describing the impact of increasingly stringent ventilation standards on multifamily buildings, highlighting the inefficiencies and challenges of exhaust-only ventilation in tightly sealed enclosures, the complications of achieving balanced ventilation, and the unintended consequences of...

EPA WaterSense guidance on urinals.

This study uses a computer simulation approach to examine the energy and indoor air quality implications of passive and hybrid ventilation systems.

Document presenting analysis results, focusing on relative humidity (RH) excursions, which are defined as unique events of indoor RH above a threshold.

Preliminary results of two monitored lab homes constructed to represent the thermal characteristics of typical existing Florida homes are presented.

Building science report describing issues with vented attics in hot-humid climates and how sealed attic construction may be a solution.

A review on the knowledge about ventilated wall claddings from field performance and hydrothermal modeling.

Report describing the formation of icicles and ice dams along poorly ventilated roofs and how to mitigate ventilation issues with insulation and vents.

Information sheet about proper ventilation and air sealing.

Standard that defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings. This version of the standard was published in the year 2010, and is available for...