Energy efficiency building envelope4/23/2024 It resists and transfers loads from wind, snow, earthquakes, and other forces. – Support: The building envelope provides structural stability and strength to the building. It works by performing three main functions: The building envelope also influences the acoustic comfort and fire safety of a building. Depending on the climate and season, the building envelope can either retain or release heat, block or admit solar radiation, prevent or allow air infiltration and control or facilitate moisture diffusion. The building envelope acts as a filter that regulates the heat, air and moisture transfer between the indoor and outdoor environment. The transparent envelope refers to the openings in the building, such as the windows, doors and skylights, that allow natural light and ventilation to enter the indoor space. The opaque envelope refers to the solid elements of the building, such as the walls, roof and floor, that provide structural support and insulation. The building envelope consists of two main parts: the opaque envelope and the transparent envelope. In this article, we will explain the key concept of the building envelope, how it works and why it is important for energy efficiency. The building envelope plays a crucial role in determining the energy performance, thermal comfort and indoor air quality of a building. It includes the walls, roof, windows, doors and other elements that separate the interior space from the exterior climate. In particular, the monograph overviews the basic operation principles and thermal performance of four technologies described in three chapters: (i) dynamic insulation materials that can change its thermal properties in order to better adapt the building envelope with its outdoor environment and reduce building heating and cooling thermal loads, (ii) variable reflectance coatings for application on roofs to lower and even eliminate the energy penalties associated with reduced solar heat gains during heating operation of buildings, (iii) single layer breathing walls to recover wasted from heat transmission inside the walls and provide air ventilation to indoor spaces, and (iv) multi-layer living walls to adapt using biomimetric principles and phase-change materials to adapt with the changing outdoor conditions.The building envelope is the physical barrier between the indoor and outdoor environment of a building. These systems have the ability to allow building structures responsive to changes in outdoor conditions to ensure comfortable indoor environment at higher energy efficiency compared to conventional systems. This monograph presents the latest research developments of innovative building envelope systems. As a series, TSL addresses a long-awaited niche in engineering publishing, providing in-depth discussions of environmental significance set within a technology, economic and policy context. Each monograph is written by leading experts in their field and examines the relationship and contributions of engineering to the topic of study. The series adopts a broad base examining fundamental principles and paradigms before a contextual exploration of ecosystems and resources, sustainable manufacturing, energy technology, environmental pollution and finally aspects of environmental governance. Technologies for Sustainable Life (TSL) – Concise Monograph SeriesĪSME’s Technologies for Sustainable Life (TSL) is a series of concise and timely monographs exploring the interface between engineering and the environmental sustainability agenda. EBook edition is available on The ASME Digital Collection.
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