Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Observation and analysis of protected membrane roofing systems
Two performance indicators, effectiveness and thermal efficiency, are defined and used to evaluate the year-round performance of three protected membrane roofs in Alaska and New Hampshire. Effectiveness is a measure of the deviations of ceiling temperatures from a yearly average, with large diviations indicating erratic performance in the roofing-insulation system and small departures indicating a thermally stable system. Thermal efficiency, the ratio of calculated heat loss to measures heat loss, is affested by climatic conditions such as rain, snow, solar radiation and wind. Thermal efficiency values of 100 % or greater are possible since the calculated heat loss is based only on the inside and outside air temperature differences and the thermal properties of the roof components. Results of the year-round evaluation indicate that the three protected membrane roofs generally have high values of both effectiveness and thermal efficiency. (Stoehr)
Observation and analysis of protected membrane roofing systems
Two performance indicators, effectiveness and thermal efficiency, are defined and used to evaluate the year-round performance of three protected membrane roofs in Alaska and New Hampshire. Effectiveness is a measure of the deviations of ceiling temperatures from a yearly average, with large diviations indicating erratic performance in the roofing-insulation system and small departures indicating a thermally stable system. Thermal efficiency, the ratio of calculated heat loss to measures heat loss, is affested by climatic conditions such as rain, snow, solar radiation and wind. Thermal efficiency values of 100 % or greater are possible since the calculated heat loss is based only on the inside and outside air temperature differences and the thermal properties of the roof components. Results of the year-round evaluation indicate that the three protected membrane roofs generally have high values of both effectiveness and thermal efficiency. (Stoehr)
Observation and analysis of protected membrane roofing systems
Eigenschaften und Analysen von Dachisolierung
Schaefer, D. (Autor:in) / Larsen, E.T. (Autor:in) / Aamot, H.W. (Autor:in)
1977
44 Seiten
Report
Englisch
ROOFING MEMBRANE, AND ROOFING SYSTEM INCLUDING THE ROOFING MEMBRANE
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