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Abstract
Good roof performance requires proper design and specification, quality materials, professional workmanship, and proactive maintenance. Shortcomings in any phase of roof asset management will compromise performance and shorten service life. The objective of this tudy was to identify relationships between roof asset management processes and performance problems identified in an inventory of US Army low-slope membrane roofs. First a review of literature pertaining to roof asset management was conducted. Next, a large army roof inspection database was analyzed to identify the types and relative frequencies of common defects, and their impacts on performance. The writer and experienced inspectors then applied both engineering and field experienced to provide expert analysis of the data. Approximately 75% of the performance problems in the sampled inventory were attritutable to deficiences caused by factors other than natural degradation. The writers conclude that roof performance can be significantly improved by strengthening quality assurance processes during installation, particularly by ensuring that installers comply with contract specifications and utilize industry-accepted construction practices.
Good roof performance requires proper design and specification, quality materials, professional workmanship, and proactive maintenance. Shortcomings in any phase of roof asset management will compromise performance and shorten service life. The objective of this tudy was to identify relationships between roof asset management processes and performance problems identified in an inventory of US Army low-slope membrane roofs. First a review of literature pertaining to roof asset management was conducted. Next, a large army roof inspection database was analyzed to identify the types and relative frequencies of common defects, and their impacts on performance. The writer and experienced inspectors then applied both engineering and field experienced to provide expert analysis of the data. Approximately 75% of the performance problems in the sampled inventory were attritutable to deficiences caused by factors other than natural degradation. The writers conclude that roof performance can be significantly improved by strengthening quality assurance processes during installation, particularly by ensuring that installers comply with contract specifications and utilize industry-accepted construction practices.
Date
8/2005
8/2005
Author(s)
David Bailey; Dane Bradford
David Bailey; Dane Bradford
Page(s)
234-243
234-243
Keyword(s)
flashing defect; membrane defect; performance characteristics; U S Army; asset management; construction management; serviceability
flashing defect; membrane defect; performance characteristics; U S Army; asset management; construction management; serviceability