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Abstract
The influence of increasing thermal insulation in the attic space of mobile home roofs on water vapor transport and water damage was investigated. Two lab environmental test chambers were designed and constructed tosimulte outside winter ambient and interior mobile home living space conditions. In addition the effect of roof skin heating due to sunlight was also simulated. Two basic roof section designs were examined. These were a standard and a raised-heel bow truss. The test specimens were constructed using actual mobile home roof construction procedures and materials. Each test specimen was instrumented using thermocouples and humidty gages. Based on the objectives of the study and the results of the thermal analysis prior to testing, a representative daily skin temperature cycle was selected and used during the tests. Based on the measured test results and post-test visual observations, it was concluded that added levels of thermal insulation in the attic space of mobile home roofs will not increase condenstaion or water damage, provided an effective vapor barrier is installed above the ceiling board.
The influence of increasing thermal insulation in the attic space of mobile home roofs on water vapor transport and water damage was investigated. Two lab environmental test chambers were designed and constructed tosimulte outside winter ambient and interior mobile home living space conditions. In addition the effect of roof skin heating due to sunlight was also simulated. Two basic roof section designs were examined. These were a standard and a raised-heel bow truss. The test specimens were constructed using actual mobile home roof construction procedures and materials. Each test specimen was instrumented using thermocouples and humidty gages. Based on the objectives of the study and the results of the thermal analysis prior to testing, a representative daily skin temperature cycle was selected and used during the tests. Based on the measured test results and post-test visual observations, it was concluded that added levels of thermal insulation in the attic space of mobile home roofs will not increase condenstaion or water damage, provided an effective vapor barrier is installed above the ceiling board.
Date
12/1979
12/1979
Author(s)
Tage Carslon; Ross Luce
Tage Carslon; Ross Luce
Page(s)
875-887
875-887
Keyword(s)
thermal insulation; attic; mobile homes; water vapor;
thermal insulation; attic; mobile homes; water vapor;