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Abstract
During roof construction, although necessary codes may be complied with, several thermal bridges and/or other anomalies are commonplace that may affect envelope thermal effectiveness. Typically, while reroofing metal deck systems, old fasteners are removed and the new, mechanically fastened ones do not use the same holes created by the old fasteners. Reroofing occurs an average of three times during the useful life of a building, and this causes severe impacts to heat and moisture transfer that are detrimental to roof insulation and, thereby, overall energy use. Using THERM, this paper quantifies the energy impacts of roof fasteners for the most commonly used metal deck roofing system configuration for reroofing and re-cover. This paper will conclude with potential solutions to reduce energy impacts.
During roof construction, although necessary codes may be complied with, several thermal bridges and/or other anomalies are commonplace that may affect envelope thermal effectiveness. Typically, while reroofing metal deck systems, old fasteners are removed and the new, mechanically fastened ones do not use the same holes created by the old fasteners. Reroofing occurs an average of three times during the useful life of a building, and this causes severe impacts to heat and moisture transfer that are detrimental to roof insulation and, thereby, overall energy use. Using THERM, this paper quantifies the energy impacts of roof fasteners for the most commonly used metal deck roofing system configuration for reroofing and re-cover. This paper will conclude with potential solutions to reduce energy impacts.
Date
3/2016
3/2016
Author(s)
Rupesh Gulati; Sasikant Suddapalli; Ravi Srinivasan
Rupesh Gulati; Sasikant Suddapalli; Ravi Srinivasan
Page(s)
55-68
55-68
Source
Roof Consultants Institute
Roof Consultants Institute
Keyword(s)
Roof fasteners; metal deck roofing systems; energy impact; reroofing
Roof fasteners; metal deck roofing systems; energy impact; reroofing