Envelope Remediation—A Case Study in Support of an Over-Cladding Approach

    Volume 5, Issue 10 (November 2008)

    ISSN: 1546-962X


    Published Online: 6 November 2008

    Page Count: 18

    Lawrence, Jared B.
    Associate, SMITHGROUP Building Technology Studio, Detroit, MI.

    Johnson, Paul G.
    Principal, SMITHGROUP Building Technology Studio, Detroit, MI.

    (Received 8 November 2006; accepted 15 September 2008)


    This paper addresses a case study in which a contemporary, high-performance glass curtain wall and a composite metal panel cladding system were installed over an existing failed 1960s masonry wall with aluminum windows. In addition to consideration of the typical performance requirements for air and water infiltration and thermal insulation, the new wall systems were designed to meet glass shard retention requirements and to accommodate improvements to the structural frame required by the General Services Administration. These performance requirements were all met while creating a more inviting exterior appearance, improving the interior work environment, extending the building’s service life, and reducing energy consumption. Problems of the original design and construction, extent of previous remediation attempts, findings of the investigation of the existing building, and the development of remediation options are discussed to provide background to selection of the over-cladding approach for remediation. Opportunities and limitations posed by the existing building, LEED requirements, glass shard retention, construction strengthening, full and uninterrupted occupancy, as well as other challenges inherent in the over-cladding of an existing high-rise building on a tight urban site are identified and discussed, and positive results are identified.

    Paper ID: JAI100885

    DOI: 10.1520/JAI100885

    ASTM International is a member of CrossRef.

    Title Envelope Remediation—A Case Study in Support of an Over-Cladding Approach
    Symposium Repair, Retrofit and Inspection of Building Exterior Wall Systems, 2006-10-22
    Committee E06