... The transport of water through waterproofing membranes over concrete substrates resulting in water-filled blisters and leaks has been demonstrated by the authors to be caused by osmosis. Although this issue has now been studied for more than a decade, there is currently no industry standard...

..., and the difference may not be immediately obvious to the untrained eye. Cost is another factor, and often a limitation, guiding the design of facade, roofing, and waterproofing systems. Special attention also needs to be given to cost- or value-oriented decision-making in building envelope design. Having the correct...

... and frequency, making both coastal and inland flooding more common. Many building owners are implementing floodproofing measures to help protect their structures from the increasing risks of flooding. This presentation will focus on applying waterproofing concepts and experience to make floodproofing more...

... Waterproofing systems4 installed on bridge decks, elevated parking decks, and similar structures often have paving systems over them to protect the waterproofing and to provide a surface suitable for vehicular traffic. Vehicular loads are transmitted through the paving system to the structural...

... This paper discusses and reviews several of the more common causes of water infiltration into basements such as: failure of the waterproofing system, structural failure of the foundation or slab, and an increase in hydrostatic pressure. Recommendations are offered for alleviating water pressure...

... Building owners' expectations for waterproofing systems are simple. Waterproofing must prevent the passage of water (impermeability), must be capable of successful installation under typical construction conditions (constructability), and must continue to provide waterproofing for the life...

... Some widely used cold fluid-applied waterproofing materials are prone to failure involving water absorption. These products meet the standards of ASTM Specification for High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course (C 836...

... Wood-framed construction is an important part of the residential housing industry, and has been so for decades. While some of the waterproofing materials and technology available to the construction industry have improved dramatically in the past 10 years, the basic precepts and many...

... Waterproofing systems on bridges play an important role by protecting both the concrete in a deck slab and the embedded reinforcement from corrosion. Such waterproofing systems are often made by applying bituminous waterproofing membranes on the concrete deck and beneath asphalt surfacing...

.... The reliability of a traditional EIFS wall can be improved by providing flashings to capture and control water that penetrates at vulnerable areas. Some recent EIFS innovations provide additional protection against water penetration by incorporating backup waterproofing membranes into the system. Proper flashing...

... Structural expansion joints that interrupt plaza and traffic bearing waterproofing membranes are often a source of leakage. Most joint seals in plaza type waterproofing systems are “buried,” making them difficult and expensive to maintain. Exposed joint seals in traffic bearing waterproofing...

... This paper reviews the construction and failure modes of two field-fabricated, traffic-bearing plaza deck waterproofing systems over various substrates. The study involved field review of the two installations, analysis of the inherent shortcomings and defects in each, and the replacement...

... suppliers, formulators, and contractors on how to design, test, and apply high performance elastomeric coatings which are long-lasting and durable. elastomeric coatings temperature climate fatigue waterproofing William H. Elfring, Jr., and William J. Rosario CLIMATE AND PERFORMANCE...

... The paper deals with the behavior of a geomembrane installed in 1963 for the internal waterproofing of a concrete pipe in a hydroelectric project. The type of geomembrane used was polyvinyl chloride (PVC), directly glued to the concrete support. The PVC geomembrane was directly exposed...

... Plaza waterproofing is precarious because of the severe service conditions imposed on the system and the inaccessibility of the waterproofing membrane for repairs. Most systems are covered by a wearing surface that often impedes the drainage of water at the membrane level. The “buried” position...

... Basic concepts of building deck waterproofing stem from the need for economic use of limited land resources, from the advantage of thermal efficiency inherent with underground structures, and from esthetic considerations in architectural design. Plaza or terrace construction is simply a roof...

... The word “waterproofing” means different things to different people. The existing definitions for the word are reviewed, and more specifically worded definitions are proposed. The use of the generic term “protective system” is suggested. Descriptions of the various degrees of protection against...

... Roofing membranes are subjected to large temperature gradients, ultraviolet radiation from the sun, building movement, constant and intermittent water immersion, and microbial attack. Waterproofing membranes are subjected to many of the same stresses. In both cases sealants are generally used...

... of the three groups in order to illustrate the problems and the limitations associated with the different tests. roofing waterproofing membranes performance durability rubberized asphalt poly(vinyl chloride) rubber liquid elastomers prefabricated asphalt bitumen building materials H. O...

... tenacity waterproofing roofing test methods durability building materials R. E. Melley' Developments in Test Methods for Rubberized Asphalts REFERENCE: Melley, R. E., "Developments in Test Methods for Rubberized Asphalts," Durability of Building Materials and Components, ASTM STP 691, P. J. Sereda...