[PDF] Failure Tendencies Of Exterior Insulation Finish Systems Eifs eBook

Author : Chris Mattock
Publisher :
Page : 44 pages
File Size : 32,28 MB
Release : 1991
Category : Exterior walls
ISBN :

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Although exterior insulation and finish systems (EIF) are an economical cladding method, concern for the long-term durability of EIF systems appears to be increasing among some building officials and building owners. This study reviews the basic performance requirements and design principles related to exterior walls. The study suggest that EIF system claddings may require high levels of workmanship and maintenance to provide reasonable serviceability. Damage to EIF systems may result from water penetration, moisture during construction, or from moisture condensing on the back of the sheathing on which the cladding system is mounted. Moisture-related deterioration may also be exacerbated when claddings are installed over substrates that are sensitive to moisture. The report recommends that field investigations be carried out to investigate the extent and severity of potential problems and to establish the ...

Author : GL. Zwayer
Publisher :
Page : 5 pages
File Size : 19,35 MB
Release : 1996
Category : Design
ISBN :

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Exterior Insulation Finish System clad projects perform well when they are properly designed and constructed and they have had problems when they were not. As with all manufactured systems and products, there are proper uses and methods of application that must be understood and used by the designer, contractor and the owner. The author's first use of an Exterior Insulation Finish system was designed and constructed in 1978. That project's success and condition today exemplifies the proper design and use of the material. The author has investigated several projects in the last four years that have had problems. Through study of the problems, the design and the installation, the reasons for the problems were defined. The problems were of the type that do not condemn the system. They were the result of inadequate design, lack of understanding of the system use, and its interface with other materials or the failure of the installers to perform their work properly. These reasons for the failures and the way they could have been avoided are explained through the use of specific examples from the 1978 building and the problem projects.

Author :
Publisher :
Page : 89 pages
File Size : 34,92 MB
Release : 1991
Category :
ISBN :

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Exterior insulation and finish systems (EIFS) are exterior wall claddings consisting of insulation and wet-applied finishes. Finishes are composed of cementitious and/or synthetic materials. EIFS function as a building skin, protecting the building structure from moisture and thermal changes. These systems are barrier type claddings. By design, barrier walls must shed water and prevent moisture from penetrating into the building itself. Hence, all EIFS must perform as waterproofing systems. Moisture protection is attained by providing an integrated system of EIFS layers in which each component serves specific and unique functions. Numerous U.S. Army and Air Force buildings clad with EIFS have recently experienced maintenance problems, localized deterioration, and outright failure. In cases of major failures, remedial work may cost more than $1 million. This report provides technical information and guidance for specifying, reviewing, and/or inspecting EIFS claddings. It also contains a brief history of EIFS, describes EIFS components and different types of EIFS claddings, lists considerations for EIPS selection, and details typical EIFS failure modes. Figures show successful and unsuccessful EIFS condition on military and private sector buildings.

Author : MB. Bronski
Publisher :
Page : 11 pages
File Size : 42,51 MB
Release : 2000
Category : Drainage plane walls
ISBN :

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During our field observations and water tests of wood-framed houses in North Carolina that are clad with EIFS, we noted common features in their exterior wall construction that caused significant deterioration to the sheathing and stud wall framing.For several reasons, these problems would be less severe or absent if the houses were clad with traditional residential wall systems (i.e., wood shingles or clapboards, brick veneer, or traditional stucco).