Download or read book Moisture Reduction Strategies for Building Envelopes written by Wade L. Vorley and published by . This book was released on 2020 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building envelope standards and practices have evolved over the past few decades in response to increased energy efficiency goals and a better understanding of building science. New materials, systems, and detailing methods help to reduce thermal bridging and to reduce air leakage through building envelopes. A building envelope assembly that is properly designed, detailed, and installed to today's standards typically will perform as expected, reduce energy usage, and provide a durable and long-lasting assembly. However, these technologies are not a panacea for deficiencies in the construction process, deferred maintenance, or unforeseen occupant uses and alterations. The sheer multitude of components involved in today's building envelopes and the airtightness of the assemblies themselves can lead to vulnerabilities exacerbated by any of these factors. Having investigated many building envelope failures, we have found that air barrier, roofing, and waterproofing perfection is challenging to achieve. The goal of this paper is to outline strategies to reduce or evacuate moisture from building envelopes without extensive replacement of components or systems. This paper presents case studies of existing buildings equipped with moisture-monitoring data loggers to evaluate initial conditions and verify moisture reduction over time. The data loggers collected readings at 5-min. intervals for temperature, relative humidity, and moisture content and have been in place for more than six years in some buildings. The primary moisture reduction strategies employed in these studies include added thermal protection, modification of heating systems, the introduction of active air movement, and ventilation of the roof assembly. The success of these strategies is verified with empirical data.
Download or read book Moisture Control Handbook written by Joseph Lstiburek and published by John Wiley & Sons. This book was released on 1996-01-15 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the climate-controlled buildings of today, moisture problemsaffect not only the useable life expectancy of the structure, butthe comfort and health of the occupants. This reference is thefirst to apply up-to-date moisture control and treatment techniquesin a problem/solution format. Opening with an introductoryexplanation of the nature and causes of mold, mildew, andcondensation, the book gives specific advice on heated, cooled, andcombination environments, plus a short course in the dynamics ofmoisture movement within buildings. Other invaluable coverageincludes: * clear, detailed recommended practices for all United Statesclimates * practices for cooling as well as heating climates (often, heatingclimate solutions are applied in cooling climates, where problemsand solutions are completely different) * an overall, systematic view of moisture problems--including howmechanical systems and occupant lifestyles can create and alsoresolve moisture problems * actual case studies of buildings with moisture problems thatillustrate the principles and practices presented in the book This detailed, no-nonsense exploration of moisture cause andeffect--as well as its protection and remediation--will expandreaders' knowledge on this crucial subject. Moisture ControlHandbook will be welcomed by building contractors, architects,mechanical engineers, building science researchers, buildingproduct manufacturers, homeowners, and small commercial buildingowners.
Download or read book Moisture control in buildings written by Heinz R. Trechsel and published by ASTM International. This book was released on 1994 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Schools written by National Research Council and published by National Academies Press. This book was released on 2007-01-25 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence has accumulated that shows that the quality of indoor environments can affect the health and productivity of adults and children. One consequence is that a movement has emerged to promote the design of schools that have fewer adverse environmental effects. To examine the potential of such design for improving education, several private organizations asked the NRC to review and assess the health and productivity benefits of green schools. This report provides an analysis of the complexity of making such a determination; and an assessment of the potential human health and performance benefits of improvements in the building envelope, indoor air quality, lighting, and acoustical quality. The report also presents an assessment of the overall building condition and student achievement, and offers an analysis of and recommendations for planning and maintaining green schools including research considerations.
Download or read book Damp Indoor Spaces and Health written by Institute of Medicine and published by National Academies Press. This book was released on 2004-10-01 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost all homes, apartments, and commercial buildings will experience leaks, flooding, or other forms of excessive indoor dampness at some point. Not only is excessive dampness a health problem by itself, it also contributes to several other potentially problematic types of situations. Molds and other microbial agents favor damp indoor environments, and excess moisture may initiate the release of chemical emissions from damaged building materials and furnishings. This new book from the Institute of Medicine examines the health impact of exposures resulting from damp indoor environments and offers recommendations for public health interventions. Damp Indoor Spaces and Health covers a broad range of topics. The book not only examines the relationship between damp or moldy indoor environments and adverse health outcomes but also discusses how and where buildings get wet, how dampness influences microbial growth and chemical emissions, ways to prevent and remediate dampness, and elements of a public health response to the issues. A comprehensive literature review finds sufficient evidence of an association between damp indoor environments and some upper respiratory tract symptoms, coughing, wheezing, and asthma symptoms in sensitized persons. This important book will be of interest to a wide-ranging audience of science, health, engineering, and building professionals, government officials, and members of the public.
Download or read book A Conceptual System of Moisture Performance Analysis written by Cliff J. Shirtliffe and published by . This book was released on 2009 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: IN A MANUAL SUCH AS THIS ONE, INDIVIDUAL ASpects of moisture control are discussed in separate, discipline-oriented chapters, even though such a treatment of the subject matter does not allow the integration of these various aspects into a comprehensive strategy of moisture control. Yet, there is a need for consolidating the multitude of findings of the research and field studies in the rapidly developing science of environmental control in buildings. This chapter attempts to fill this need by introducing a conceptual system of moisture performance analysis. The following chapter, added in the second edition of this manual, will continue the topic even further, leading the reader towards the development of methods for assessment of moisture-originated damage. Performance of whole buildings as it depends on building components, e.g., external envelope, mechanical and electrical systems, and operational conditions (defined by climate and occupancy of the building), must also be related to the selection of materials forming the components of the building system. In this process, the materials are selected on the basis of structural and environmental control considerations [1]. Yet, while the structural design is well defined, this is not the case with the environmental control process. In the worst case, the environmental design is based on experience gained by the designer in the trial and error process. Heat, air, and moisture transport across a building envelope are inseparable phenomena. Each influences the other and is influenced by all the materials contained within the building envelope. Often we simplify the process of design by relating control of each phenomenon to a particular material or component. The thermal insulation, for example, is perceived to control heat transfer and the air barrier to control air leakage (Table 1). Likewise, the rain screen and vapor barrier eliminate ingress of moisture into the system.
Download or read book Moisture Control Guidance for Building Design Construction and Maintenance written by American Society of Heating, Refrigerating and Air-Conditioning Engineers and published by . This book was released on 2016-06-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Moisture control is fundamental to the proper functioning of any building. Controlling moisture is important to protect occupants from adverse health effects and to protect the building, its mechanical systems and its contents from physical or chemical damage. Yet, moisture problems are so common in buildings, many people consider them inevitable. Excessive moisture accumulation plagues buildings throughout the United States, from tropical Hawaii to arctic Alaska and from the hot, humid Gulf Coast to the hot, dry Sonoran Desert. Between 1994 and 1998, the U.S. Environmental Protection Agency (EPA) Building Assessment Survey and Evaluation (BASE) study collected information about the indoor air quality of 100 randomly selected public and private office buildings in the 10 U.S. climatic regions.
Download or read book Moisture and Buildings written by Arianna Brambilla and published by Woodhead Publishing. This book was released on 2021-05-28 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: One in three homes, on average, suffer from excessive dampness and mould proliferation, with significant health and economic impacts. The combination of new construction methodologies, stricter airtightness requirements and the changing social and cultural context that influences the way we live inside buildings has created unprecedented challenges for the built environment. In modifying indoor and outdoor environments and the building envelopes that serve as a filter between the two, we are changing the physical parameters of the ways in which buildings behave and respond to climatic stimuli. Understanding and predicting the way in which buildings and moisture may interact should be an important step in the design process, aiming to minimise possible negative long-term consequences. Understanding and predicting the way in which buildings and moisture may interact is, today more than ever, essential yet difficult, as the experience of the past has lost its applicability. Moisture-related issues never have a simple solution, since they involve multiple factors, including design, construction, maintenance, materials, climate and occupation pattern. Thus, while the topic is attracting growing attention among researchers, designers and practitioners, the pace with which actual change is occurring is still too slow. Moisture and Buildings provides a critical overview of current research, knowledge and policy frameworks, and presents a comprehensive analysis of the implications of moisture and the importance of accounting for it during the design process. It responds to the urgent need for a systematic organization of the existing knowledge to identify research gaps and provide directions for future developments. The ultimate goal is to increase awareness of the multifaceted implications of hygrothermal phenomena and promote integrated design processes that lead to healthier and more durable constructions. Presents advanced knowledge on hygrothermal processes and their interaction with buildings Integrates the three key areas of moisture transport and its impact on buildings, including durability, human health and comfort Considers the most useful computational tools for assessing moisture and building interactions Includes a section on the main European, American and Australian building codes Explains the risks of mold growth to human health, including growth models to assessment methods
Download or read book Building Envelope Guide to Designing for Energy Efficiency and Thermal Comfort written by Charles Nehme and published by Charles Nehme. This book was released on with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to "Mastering the Building Envelope: A Comprehensive Guide to Designing for Energy Efficiency and Thermal Comfort." This book is a culmination of years of experience, research, and innovation in the field of sustainable architecture and construction. The building envelope, often overlooked or underestimated, plays a critical role in the performance of a structure. It serves as the interface between the interior and exterior environments, influencing energy consumption, occupant comfort, and overall building sustainability. As our society increasingly prioritizes environmental stewardship and energy conservation, the importance of optimizing the building envelope has never been greater. In this book, we aim to provide architects, engineers, builders, and students with a comprehensive understanding of the principles and practices involved in designing and constructing high-performance building envelopes. From selecting appropriate materials to implementing advanced energy-efficient technologies, each chapter delves into essential concepts and practical strategies to achieve optimal results. Throughout these pages, you will find: Detailed explanations of building envelope components, including walls, roofs, windows, and doors, with a focus on their role in energy efficiency and thermal comfort. Insights into passive and active design strategies aimed at reducing energy consumption and enhancing occupant well-being. Guidance on assessing performance and compliance with energy codes and standards, as well as tools and resources for evaluation. Case studies highlighting successful projects from around the world, showcasing innovative approaches and lessons learned. Discussions on emerging trends and future directions in building envelope design, including net-zero energy buildings and climate resilience. Our goal is not only to inform but also to inspire. By embracing the principles outlined in this book, you have the opportunity to make a meaningful impact on the built environment, creating spaces that are not only environmentally responsible but also comfortable, healthy, and enjoyable for occupants. We hope that "Mastering the Building Envelope" serves as a valuable resource in your journey toward sustainable design and construction. Together, let us strive to create buildings that not only stand the test of time but also contribute to a more sustainable and resilient future. Thank you for joining us on this journey.
Download or read book Thermal and Moisture Protection Manual written by Christine Beall and published by McGraw-Hill Professional Publishing. This book was released on 1999 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative manual takes you through the forces of rain, snow, ice, and vapor ... explains variations in macro and micro climate ... analyzes weather exposure and risk ... discusses the durability of various building materials ... and applies theory to practice with hundreds of detail drawings. Whether you're an architect, engineer, contractor, or building owner, this manual is now your best tool for achieving optimal thermal and moisture control in a wide range of building types - and for mastering the why's and how's of good practice.
Download or read book Moisture Control for Residential Buildings written by Joseph Lstiburek and published by . This book was released on 2020-09-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moisture and Buildings written by Arianna Brambilla and published by Elsevier. This book was released on 2021-06-09 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: One in three homes, on average, suffer from excessive dampness and mould proliferation, with significant health and economic impacts. The combination of new construction methodologies, stricter airtightness requirements and the changing social and cultural context that influences the way we live inside buildings has created unprecedented challenges for the built environment. In modifying indoor and outdoor environments and the building envelopes that serve as a filter between the two, we are changing the physical parameters of the ways in which buildings behave and respond to climatic stimuli. Understanding and predicting the way in which buildings and moisture may interact should be an important step in the design process, aiming to minimise possible negative long-term consequences. Understanding and predicting the way in which buildings and moisture may interact is, today more than ever, essential yet difficult, as the experience of the past has lost its applicability. Moisture-related issues never have a simple solution, since they involve multiple factors, including design, construction, maintenance, materials, climate and occupation pattern. Thus, while the topic is attracting growing attention among researchers, designers and practitioners, the pace with which actual change is occurring is still too slow. Moisture and Buildings provides a critical overview of current research, knowledge and policy frameworks, and presents a comprehensive analysis of the implications of moisture and the importance of accounting for it during the design process. It responds to the urgent need for a systematic organization of the existing knowledge to identify research gaps and provide directions for future developments. The ultimate goal is to increase awareness of the multifaceted implications of hygrothermal phenomena and promote integrated design processes that lead to healthier and more durable constructions. Presents advanced knowledge on hygrothermal processes and their interaction with buildings Integrates the three key areas of moisture transport and its impact on buildings, including durability, human health and comfort Considers the most useful computational tools for assessing moisture and building interactions Includes a section on the main European, American and Australian building codes Explains the risks of mold growth to human health, including growth models to assessment methods
Download or read book Airflow Performance of Building Envelopes Components and Systems written by Mark P. Modera and published by ASTM International. This book was released on 1995 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the measurement and control of air moving inside buildings and between the inside and outside in 17 papers and discussions from a symposium in Dallas/Fort Worth in October 1993. After an overview of the subject, covers air movement, ventilation, and indoor air quality; window air leakage;
Download or read book Sustainable Ecological Engineering Design written by Mohammad Dastbaz and published by Springer. This book was released on 2016-05-19 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the impacts of the built environment, and how to predict and measure the benefits and consequences of changes taking place to address sustainability in the development and building industries. It draws together the best treatments of these subjects from the Leeds Sustainability Institute’s inaugural International Conference on Sustainability, Ecology, Engineering, Design for Society (SEEDS). The focus of discussion is on understanding how buildings and spaces are designed and nurtured to obtain optimal outcomes in energy efficiency and environmental impacts. In addition to examining technical issues such as modeling energy performance, emphasis is placed on the health and well-being of occupants. This holistic approach addresses the interdependence of people with the built and natural environments. The book’s contents reflect the interdisciplinary and international collaboration critical to assembly of the knowledge required for positive change.
Download or read book WHO Guidelines for Indoor Air Quality written by Elisabeth Heseltine and published by WHO Regional Office Europe. This book was released on 2009 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial pollution is a key element of indoor air pollution. It is caused by hundreds of species of bacteria and fungi, in particular filamentous fungi (mould), growing indoors when sufficient moisture is available. This document provides a comprehensive review of the scientific evidence on health problems associated with building moisture and biological agents. The review concludes that the most important effects are increased prevalences of respiratory symptoms, allergies and asthma as well as perturbation of the immunological system. The document also summarizes the available information on the conditions that determine the presence of mould and measures to control their growth indoors. WHO guidelines for protecting public health are formulated on the basis of the review. The most important means for avoiding adverse health effects is the prevention (or minimization) of persistent dampness and microbial growth on interior surfaces and in building structures. [Ed.]
Download or read book Impact of Air Leakage on the Thermal and Moisture Performance of the Building Envelope written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The air tightness of building envelopes systems is critical to the performance of a building. Uncontrolled airflow movements can cause moisture-induced damage by transporting large amounts of moisture, and may also impact occupant health and safety, sound control, fire control and energy efficiency. Building envelopes are often designed to control airflow by providing a resistance to the bulk flow. Implementation of air barrier systems to restrict airflow is commonly used to reduce the quantity of airflow movement between the exterior and interior environments through the wall. This paper presents a preliminary assessment of the influence of airflow on the moisture performance of a residential building envelope system. The combined heat, air and moisture (hygrothermal) transport in a selected wall is numerically investigated. Vapor diffusion, liquid transport and temperature dependent sorption isotherms are included in the investigation.
Download or read book Standard Guide for Characterization and Use of Hygrothermal Models for Moisture Control Design in Building Envelopes written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
