Building knowledge and connections

H.B. Fuller Company

H.B. Fuller Company

Address:
1200 Willow Lake Boulevard
St. Paul, MN 55164-0683
USA
Phone: 651-236-5900
Toll-free: 888-351-3523
Website:
  • The use of incompatible glazing components can result in premature insulating glass (IG) failure. This presentation explains the processes which occur during the interaction of the components used in insulating glass and glazing. These interactions can cause material property changes, where components are no longer able to fulfill their function within a system. Lack of compatibility can cause a wide variety of very different failure modes and requiring the need for careful analysis. Origins and mechanisms of loss of function as a result of lack of compatibility are mainly related to diffusion processes, which change material properties in bulk and surfaces. Based on a solid knowledge of materials and available test methods, risks can be assessed and compared for different solutions. Modification of systems can avoid risk by reduced material contact wherever acceptable control of building construction can be ensured. Based on understanding of critical processes, a new generation of materials is presented which avoid risks due to influence of contact materials.


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  • Under extreme environmental conditions, such as heavy wind loads and extreme temperatures, primary sealants in insulating glass units (IGUs) can be exposed to high stresses. A reactive butyl-based warm edge spacer system – which incorporates the functions of the spacer, desiccant and gas-tight primary sealant – is well suited to compensate for these stresses. In contrast to rigid spacer frames, this spacer utilizes the whole interior of the IGU to absorb movements caused by environmental stresses. The reactive thermoplastic spacer utilizes the very low gas permeation and moisture vapour transmission rates of butyls to produce absolutely gas tight IG units even in combination with silicone secondary, which is known to have low gas retention


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  • This presentation focuses on the use of reactive thermoplastic spacer in structural glazing facades. The desire for completely flat glass curtain walls without visible structures sparked a worldwide trend toward all-glass facades. In these structural glazing (SG) or structural sealant glazing (SSG) facades, the support structure is not visible from the outside. These systems have become an integral part of contemporary architecture and give the building a distinct presence. SG optics embrace both transparency and daylighting in facade construction. Daring, flowing glass facades enable the simultaneous languages of architecture to provide transparent natural light-filled creations whilst balancing the energy performances expected of the contemporary “passive” house. This program will show how these varied and demanding requirements can be realized by using a reactive thermoplastic spacer (TPS) system. Different from conventional TPS types, this reactive spacer bonds chemically to both the glass surface and the silicone sealant. As a result, the whole edge seal blends into one integrated system. The program will provide an overview of reactive thermoplastic spacer and its use under challenging conditions.


    Request a Live Session or Webinar

    No sessions for this course are currently scheduled.