An air curtain, also known as an air door, employs a controlled stream of air aimed across an opening to create an air seal. This seal separates different environments while allowing a smooth, unhindered flow of traffic and unobstructed vision through the opening. This course discusses how air curtains work and why they can contribute to occupant comfort, energy efficiency, and indoor air quality when the door is open. It also reviews how air curtains improve whole-building energy efficiency versus conventional methods.

In response to steadily growing demands for more and more storage capacity and the costs and energy required to implement that storage, data center design is now focusing on solutions that conserve energy, materials, money, and space. This course explores the current influences that directly or indirectly affect energy usage and management, the resulting trends in data center development, and how containment strategies enable designers to optimize energy efficiency and create facilities with minimal environmental footprints.

With a radiant heat system, the temperature profile associated with a forced-air system is switched around, and the entire floor becomes the radiator. The heat radiates from the floor, warming all of the objects in the room, and everything in the room gains a warm, comfortable feel to it. This course evaluates self-regulating polymer technology and the performance benefits of using PTC (positive temperature coefficient) heaters for energy-efficient floor warming, primary heating, snow melting, and roof deicing.

Universal hot water availability is generally taken for granted. At a time when energy prices and sources, environmental concerns, and water shortages are increasing in significance, it is important to produce hot water in a manner that addresses all these issues. This course explains how electric tankless water heaters (ETWHs) do this while also improving health and safety conditions and reducing costs. The examination includes detailed descriptions of many types of ETWHs and the basic calculations and selection criteria for the most suitable system.

Highly customizable electric heating solutions can provide either the main or supplemental heat for most indoor and outdoor spaces. Such solutions can harmonize beautifully with every architectural context and building configuration while addressing the full range of health, safety, comfort, and energy efficiency issues facing contemporary designers. This course examines the many supplemental electric heating solutions and devices available, their capabilities and configuration options, and how they can be customized to suit every unique architectural and engineering demand. It concludes with several illustrated cases.

An energy recovery ventilator (ERV) system provides occupants with filtered, balanced, and tempered air within their living space. Airborne contaminants can be greatly reduced with ERV systems. This course provides knowledge about the need, use, design, and installation of ERVs in the modern dwelling unit and when retrofitting existing structures. The course also addresses the environmental advantages of sustainable and healthy solutions for indoor air quality.

The building sector is responsible for the majority of carbon emissions in urban centers. As governments enact new policies on the path to net-zero emissions by 2050, the building industry is shifting to green technologies and renewable energy resources. This course examines how geothermal exchange systems use the Earth’s constant temperature to heat and cool buildings without emitting carbon. Their contribution to energy performance credits in the LEED® v4 Building Design and Construction (BD+C) and Operations and Maintenance (O+M) rating systems is reviewed, as are installation options, the design and construction process, the energy-as-a-service model, and the numerous benefits of geothermal exchange systems in a variety of applications.

Energy creation, distribution, and consumption are all in a period of transition. Understanding this transition and its various aspects is critical to sustainable transitional energy planning (STEP). This course delves into the reasoning behind the STEP approach and its contributions to creating resilient communities and explores available exhaustible and renewable energy resources and innovations in the energy sector that can be leveraged by STEP.

The facade is one of the most significant contributors to the energy consumption and comfort parameters of any building. This course explores high-performance building envelopes and the use of advanced insulated metal panel systems featuring integrated daylighting and ventilation components that combine to provide weathertightness and maximum thermal performance.

Air curtains provide a controlled stream of air across a door or window opening, creating a seamless barrier between two distinct spaces while still allowing a smooth, uninterrupted flow of traffic. Air curtains offer significant energy savings to building owners by helping to maintain interior building temperatures. This course examines how air curtains reduce whole-building energy consumption, provide thermal comfort, and maintain air quality even when a door is open. The basic principles and theory of how air curtains operate and how to properly identify applications and maximize the air curtain’s energy savings potential are discussed in detail. Selection, application, and installation of the various types of air curtains are also explained.

In the last couple of decades, houses have become progressively more airtight due to energy efficiency and cost concerns. While air infiltration and exfiltration rates have been significantly reduced, the need for an efficient ventilation system has become extremely important. This course evaluates different types of mechanical ventilation systems and discusses why heat recovery ventilation (HRV) and energy recovery ventilation (ERV) systems are characterized by a high level of energy efficiency and as an effective means for improving indoor air quality.

The fireplace has always been a focal point in any home, providing warmth and a place for friends and family to gather. Today’s wood-burning fireplaces, inserts, and stoves have become increasingly efficient and clean burning. This course examines using wood as a fuel source and discusses the many characteristics that can affect heat production, efficiency, and burn time. New burning technologies that meet EPA certification requirements for released particulate matter are summarized, as are design and installation specifications.

Today's gas fireplaces make a stylish, modern design statement while providing a safe and efficient option for supplemental heat. This course explores the benefits of direct vent, electronic ignition gas fireplaces over other fuel and venting options, with a focus on the innovative features and design possibilities offered by frameless fireplaces suitable for any residential or commercial space. The benefits of a frameless fireplace design, cool wall technology, a heat control system, and integration of the modern fireplace into a home automation system are discussed, and occupant safety features such as double glass heat safety barriers are explained.

The use of life safety dampers is driven by requirements in various building codes. There are many different applications for which fire, fire/smoke, smoke, and/or ceiling radiation dampers can be used, each having its own specific purpose and unique installation requirements. This course gives an in-depth look at the different types of dampers and explains how and where they're each used and installed.

Hidden access covers blend utility access covers with the surface continuity of streetscape, hardscape, and landscape designs. This course reviews the functions, product types, and specification and installation considerations of hidden access cover solutions.

In many climate zones, the heating and cooling of outside air (OA) is one of the largest energy loads and contributors to building emissions. Traditional commercial HVAC designs based on the Ventilation Rate Procedure (VRP) rely on large volumes of outside air to maintain acceptable indoor air quality, often resulting in oversized HVAC equipment and wasted energy. Adding to this, good indoor air quality is no longer just a matter of meeting code but is now seen as a necessity for business continuity, improved learning outcomes, and employee productivity. In this course, we will examine ASHRAE Standard 62.1, a recognized standard for nonresidential ventilation system design, and its Indoor Air Quality Procedure (IAQP), which allows for the use of air cleaning technology to offset outside air for a more efficient ventilation system design. We will review the requirements and calculations for this procedure, showing the impact on indoor air quality and energy use, and present a number of case studies. We will also show how IAQP used with air cleaning can help achieve LEED® v4 BD+C: New Construction and O+M: Existing Buildings and WELL v2™ certification.

Fireplaces remain one of the main focal points of a home. No longer used only for heating or cooking, and coupled with advances in technology and fuel options, fireplaces have evolved into an architectural component of the designed living space. Modern gas fireplaces offer an environmentally friendly heating solution with high efficiency ratings and contemporary designs that don’t sacrifice form for function. This course offers an overview of contemporary fireplace styles, options, venting, and installation, with a focus on cool wall technology and how it allows electronics and other design elements to be safely mounted over a fireplace.

Meeting the ventilation requirements of ASHRAE 62.2 and maintaining an energy efficient home means balancing the need for fresh outdoor air and the energy needed to condition it. In this course we will examine the ventilation requirements in ASHRAE 62.2, discuss how they can be met, and look at some solutions for energy efficient ventilating.

Building systems can be enhanced by incorporating reflective insulation or radiant barriers into the building envelope. With effective insulation, heat transfer is reduced, resulting in less summer heat gain, and less winter heat loss. This course explains common and effective uses for reflective insulation and radiant barriers in a wide range of construction and building applications and demonstrates how these systems reduce energy usage, increase the lifespan of the mechanical equipment for heating and cooling, and reduce maintenance requirements and frequency of replacement.

Finding ways to improve the energy efficiency of buildings is a key focus of many codes organizations, designers, architects, and government groups. This course examines how the roof of a building—one of the few parts of a building envelope that undergoes periodic replacement—impacts energy efficiency. It also explores how roof design can be a key contributor to meeting both sustainability and energy operating cost goals.

Textile air dispersion systems have come a long way from the days of cotton diffusers and duct socks. Today's systems are custom engineered and constructed from advanced polyester fabrics that offer features and capabilities not possible with other air distribution systems. This course examines the similarities and differences between metal and fabric systems and highlights the design, performance, efficiency, and sustainability characteristics unique to textile air dispersion. As well, the wide-ranging application possibilities for textile systems are explored.

Insights gained during the COVID-19 pandemic have shown how vulnerable we are to contagion through indoor air, but the pandemic also revealed many new solutions to better ensure indoor air quality. In this course, we examine the role of humidity in indoor air quality and its impact on air pollutants. We also discuss how to control humidity in residential and commercial spaces and review several solutions for humidity control.

Unwanted sound can become more than a mere annoyance. Excess noise has been found to increase stress and distraction, reduce learning and productivity, and even lead to hypertension and permanent hearing loss. This course presents an overview of how sound is described and measured and describes the many industrial and architectural products available to control noise in virtually any environment.

The materials we use have a significant impact on the environment, our communities, and our health. Consequently, material transparency—wherein manufacturers disclose vital sustainability information about their products—is an increasingly necessary element of modern life. This course examines the tools and resources that are available for both manufacturers and the A&D community that effectively communicate transparency information and optimization of building products. Also reviewed are the benefits of the new-generation insulated metal panels (IMPs) designed to achieve a trusted range of health and wellness certifications.

As we become more aware of the levels of toxins in our environment, we are realizing that the quality of air inside our homes is just as important as the quality of air outside our homes. This course outlines why indoor air quality is so important to our health and describes how to improve indoor air quality by using a balanced ventilation system.