Library

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...

Manual describing scientific, technical, and practical information needed to work with communities on urban forestry, including a section on trees and construction.

Interactive map maintained by the USDA showing plant hardiness zones throughout the U.S.

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

Webpage describing the use of cool roofs to reduce heat islands and and benefits and costs.

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

Research report that validates Pinhole Insulation®, offering a cost-effective, minimally invasive solution for enhancing insulation and air sealing in enclosed roof cavities, improving R-value by 60% compared to traditional methods.

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

This report examines indoor air quality in post-2013 homes across various climates, focusing on contaminant levels, ventilation equipment usage, and control measure impact, with regional data from Florida, Georgia, and South Carolina.

Standard that provides procedures and methods for meeting minimum ventilation and indoor air quality requirements to engineers, design professionals, owners, and jurisdictional authorities where model codes have been adopted. This is the current version of the standard, which was published in the...

Fact sheet describing how to identify heat-related illness and what actions to take.

Report describing a field study of 31 homes to test envelope and duct leakage and fan flowrates, and to determine ventilation operation characteristics.

Web page explaining what a cool exterior wall is and how they work, as well as benefits to their use and links to research studies.

Web page explaining what a cool roof is and how they work, as well as benefits to their use and links to research studies.

EPA coronavirus Q&A discussing the role of HVAC filters in dealing with COVID-19.

Article discussing the risks that can occur from undercutting bedroom doors to provide return airflow from bedrooms, as well as corrective measures that can be taken to address these risks.

Conference paper presented at the 2020 Summer Study on Energy Efficiency in Buildings presenting the results of an evaluation of control strategies used when new mini-splits are installed in a home with an existing HVAC system.

Technical fact sheet describing proper operation, sizing, and installation of whole-house fans.

Article describing the impacts of wildfire smoke on indoor air quality and some ways ASHRAE is responding.

Paper describing wind influences on air infiltration related energy losses for residential housing and the shielding effects of fences, adjacent structures, and vegetation.

Report detailing passive design strategies used at the Zion National Park Visitor Center, including evaporative cool towers.