Library

Document describing the air leakage provisions of Appendix RA of the 2015 IECC (prepared for the State of Georgia to assist with compliance with their 2019 Energy Code).

Report describing how changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy.

Standard providing master specifications for closed cell, medium density spray polyurethane foam air barriers located in the non-accessible part of the wall.

Standard outlining materials and installation methods by using commercial building wraps.

Standard providing information about self-adhered sheet air barriers located in the non-accessible part of the wall and materials to bridge and seal air leakage pathways and gaps.

Standard outlining materials and installation methods for a liquid-applied vapor permeable air barrier systems located in the non-accessible part of the wall.

Vinyl siding estimating and installation guide for vinyl siding products.

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...

Report examining the effectiveness of an aerosolized acrylic technique for air sealing existing homes to reduce air leakage and improve energy efficiency.

Technical report describing the research behind a new aerosol-based sealing method, utilizing pressurization and a dispersed sealant fog, facilitated by a standard blower door, to automatically measure, locate, and seal air leaks in new homes in the United States, providing an efficient solution to...

Fact sheet describing an innovative aerosol-based sealing technique for tightening building envelopes in new homes, involving pressurizing the structure and dispersing an aerosol sealant "fog" to autonomously identify and seal leaks, with real-time feedback through a standard blower door and laptop...

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...

Brochure about creating an air barrier by sealing drywall assemblies.

Brochure about creating an air barrier at tub, shower and fireplace walls.

Information on the control of air flow across building enclosures to control moisture damage, reduce energy losses, and ensure occupant comfort and health. A continuous, strong, stiff, durable and air impermeable air barrier system is required between the exterior and conditioned space to control...

Document reporting results from a study done to evaluate effects of automotive emissions from attached garages on the indoor environment.

Article describing recessed lighting, which if installed incorrectly may contribute to air leakage and compromise building envelope efficiency.

Article describing how an airtight home shell helps achieve a tight envelope that is energy efficient and cost effective.

Article describing how to stop air leaks around the windows and doors of a home.

Website article interviewing the inventor of the Larsen truss, a history of its use, and a discussion of its advantages and disadvantages.

Article about different types of weather resistant barrier.

Article describing air sealing and air barriers in buildings.

Technical report describing the thermal performance of 40 common building envelope details for mid- and high-rise buildings, including analyses to optimize energy efficiency and reduce thermal bridging.

Standard establishing the minimum whole-building energy performance requirements for energy efficient residential buildings.

ASTM standard providing test methods for determining duct air leakage in low-rise residential and commercial buildings.

Article by the Canadian Government on attic ventilation and considerations for moisture and ice dams.

Report covering interior energy retrofits of masonry buildings.

Document focusing on the design and wall components that contribute to a pressure equalized rain screen wall, including the frequency of the weep holes and other brick masonry rain screen wall requirements.

Web based tool providing decision-making guidance for selecting wall assembly components.

Report comparing a variety of roof insulating strategies to present their advantages and disadvantages according to several comparison criteria.

Guide describing methodologies for assessing and mitigating thermal bridging in building envelopes, featuring detailed performance data, interface solutions, and assembly-specific strategies for energy-efficient construction.

Article describing the principle of capillarity in construction materials.

A website describing a list of common vocabulary used when describing light bulbs.

A simple three-step guide for homeowners who are looking to replace existing light bulbs with more energy-efficient, higher-performing bulbs.

A website explaining how to quickly clean up a broken compact fluorescent lightbulb.

Article describing how closed crawlspaces can do "double duty" by controlling moisture and providing energy savings.

A website explaining the various shades of light, from warm to cool colors, with a visual diagram illustrating the various shades of light.

Report outlining how conditioned crawlspaces perform better than vented crawlspaces in terms of safety, health, comfort, durability and energy consumption.

Guidance from Zero Energy Project on construction techniques for warmer climates, such as home orientation, and insulation requirements.

Article about how mortar droppings during the installation of a brick veneer can clog the weep holes in the wall assembly causing moisture damage. The article also illustrates products that can be installed in the ventilated cavity to mitigate this problem.

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...

Document presenting step-by-step process for installing rigid insulating sheathing over wood studs or house wrap.

Report exploring alternative methods to find long-term solutions to energy loss in 1 ½-story homes to save energy, improve comfort, prevent frost buildup on the underside of the roof deck, and reduce the risk of ice dam formation/reformation.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Source Energy and Carbon Decisions chapter helps users carefully assess the impacts of switching from gas to electricity for heating end-uses, using source energy and/or carbon emissions...

Report covering exterior energy retrofits of masonry buildings.

Website discusses differences between CFL and LED bulbs.

Article describing the difference between swales and hugels (berms used to create soil from woody debris).

A FAQ explaining the purpose of the Energy Independence and Security Act, a law which sets energy efficiency standards for lightbulbs.

Document providing descriptions of the many insulation options available to homeowners, along with guidance on where, when, and how to install insulation throughout your house.

Article from NAHB research center describing home building techniques for homes in hot climate zones.