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Monday, May 4, 2020 | History

1 edition of Moisture migration in buildings found in the catalog.

Moisture migration in buildings

Moisture migration in buildings

a symposium

  • 123 Want to read
  • 38 Currently reading

Published by ASTM in Philadelphia, Pa. (1916 Race St., Philadelphia 19103) .
Written in English

    Subjects:
  • Dampness in buildings -- Congresses.

  • Edition Notes

    Statementsponsored by ASTM Committee E-6 on Performance of Building Constructions, Philadelphia, Pa., 6 Oct. 1980 ; M. Lieff and H.R. Trechsel, editors.
    SeriesASTM special technical publication ;, 779
    ContributionsLieff, M., Trechsel, Heinz R., ASTM Committee E-6 on Performance of Building Constructions.
    Classifications
    LC ClassificationsTH9031 .M64 1982
    The Physical Object
    Pagination293 p. :
    Number of Pages293
    ID Numbers
    Open LibraryOL3792065M
    LC Control Number81071868

    Moisture is a common cause of building degradation. In fact, much of what we know about applied building science today originates from early work investigating moisture impact on buildings. While the severity of moisture problems varies greatly depending on climate, few regions in North America are free from concerns about moisture in buildings. This publication contains 19 papers on the subject of moisture migration in buildings. It is divided into four sections, the first one covering roofing, the second dealing with walls, the third with standards and test methods, and the fourth with general topics.

    Notes the importance of the study of moisture migration in materials and building elements for the characterisation of their behaviour as it affects their durability, waterproofing, degradation and thermal.   CHAPTER HEAT, AIR, AND MOISTURE CONTROL IN BUILDING ASSEMBLIESEXAMPLES. // ASHRAE Handbook: Fundamentals;, p Chapter 27 of the book " ASHRAE Handbook: Fundamentals" is presented. The chapter offers information on examples of heat, air, and moisture transfer in building assemblies.

    When moisture attacks and the impact to your building envelope. In September , two category 4 hurricanes and one category 5 hurricane devastated Florida, Texas, Puerto Rico, the U.S. Virgin Islands and more with a total cost of up to $ billion in damages. During the rainy season, SF Gate reported that California received more rain in just a few months than the state had seen. Moisture Control in Buildings. Introduction. 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 inFile Size: 7MB.


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Moisture migration in buildings Download PDF EPUB FB2

Moisture Migration Moisture migration in buildings book Buildings, ASTM STPEditors Lieff / Trechsel [Editors Lieff / Trechsel] on *FREE* shipping on qualifying offers.5/5(1). About this book The knowledge of moisture migration inside building materials and construction building components is decisive for the way they behave when in use.

Buy Moisture migration in buildings. by M. Lieff online at Alibris. We have new and used copies available, in 0 edition - starting at $ Shop now. Moisture Control Handbook will be welcomed by building contractors, architects, mechanical engineers, building science researchers, building product manufacturers, homeowners, and small commercial building owners.

From the Back Cover. In the climate-controlled buildings of today, moisture problems affect not only the useable life expectancy of Cited by: Water vapor within a building can lead to condensation on or within building envelopes via airflow/air leakage, vapor diffusion, and on exposed surfaces.

Water vapor inside a building naturally equalizes between adjacent environments via diffusion, and because air. Concrete Floors And Slabs; MOISTURE MIGRATION IN CONCRETE SLABS DURING DRYING /books books Thomas Telford Publishing /cfas Concrete Floors And Slabs Concrete Floors And Slabs Proceedings of the International Seminar held at the University of Dundee, Scotland, UK on 5–6 September Ravindra K.

DhirDirector Concrete. The study of moisture migration in materials and building elements is of great importance for the characterization of their behaviour, and affects their durability, waterproofing, degradation and thermal performance.

The different mechanisms of moisture transport in building walls and the analysis of interface phenomena have been by: BUILDING MOISTURE AND DURABILITY 1.

Introduction Moisture, in all its physical forms, is commonly regarded as the single greatest threat to durability and long-term performance of the housing stock. Excessive exposure to moisture is not only a common cause of significant damage to many types of building components and.

Moisture Migration and Surface Ventilation This chapter explains how and why moisture migration takes place and discusses to what extent surface ventilation can reduce or eliminate the damage it can cause to bulk grain cargoes. Movement of Moisture The total amount of water held in a cargo may be the same at the end of a.

In modern buildings, there tends to be moderate tolerance for design/construction errors affecting thermal performance, air leakage, and moisture migration. This is primarily due to the typically low interior moisture levels found in these types of projects and seasonal variation in exterior conditions.

Genre/Form: Conference papers and proceedings Congresses: Additional Physical Format: Online version: Moisture migration in buildings. Philadelphia, Pa.

( Race St. and, in some cases, moisture can reach values of 75% (Soveja & Budescu, ). Building Element Degradations, Caused by Moisture Most degradations occur in historic buildings because of the presence of moisture in the structure of building materials, associated with various physical,File Size: 2MB.

Therefore, it is essential to control moisture migration into the building components through careful material selection and design [3, 37]. It is also on records that the thermal conductivity of Author: John Straube. Get this from a library. Moisture migration in buildings: a symposium.

[M Lieff; Heinz R Trechsel; ASTM International.; ASTM Committee E-6 on Performance of Building Constructions.;]. Book January The knowledge of moisture migration within building materials and building construction components is decisive in the characterization of its in-service behavior.

Abstract: One of the main causes of older and heritage buildings degradation is moisture, in particular the rising damp from the ground. The construction materials which are in contact with water or moist soil are subject to capillarity, which is defined as the phenomenon of a liquid rising through the capillaries of a solid, leading to the emergence of several height of.

Moisture-Caused Building Problems. Excessive indoor moisture problems on buildings are often difficult to diagnose and cure, largely because although the physics of moisture vapor transmission, air flow, and dew points is well known (but complicated), the movement of moisture in buildings is often complicated and not obvious unless invasive.

Answer to Moisture migration in the walls, floors, and ceilings of buildings is controlled by vapor barriers or vapor retarders. It will degrade any moisture sensitive building material, and reduce the performance of the wall.

While stopping water in its liquid and solid state seems straight forward, the gas or vapor state is a little more elusive, but equally important to understand.

This section will focus on moisture, water in its gas state, and migration. Water Vapor Migration & Condensation Control in Buildings The basics of psychrometric analysis of moisture conditions, including evaluation of vapor barriers and other construction features, and internal and external moisture sources.

and spalling of concrete from the roof deck. A mass air and water vapor survey of the building. First, the building designer must understand the basic causes of moisture intrusion into buildings: Rainwater intrusion.

Moisture present in building materials and on the site during construction can be a source of problems. Significant amounts of moisture can also result from water leaks within building systems or through the building envelope.Understanding the Mysteries of Moisture Migration Walls are designed with four barriers: water, air, vapor and thermal.

When there is moisture accumulation in a wall, most of the time it occurs because of a hole in the water barrier that is letting water come through the wall.moisture migration measured by these methods. Vapor barriers and gravel capillary breaks produced little or no change in the measured flow at early ages, but reduced the flow at later ages.

The superior resistance to moisture migration of good quality concrete, relative to that of lower quality concrete, was amply demonstrated in this study re-File Size: 1MB.