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Full-Text Articles in Physics
The Effect Of Ambient Moisture Conditions On Heat Flux Time Shift And Decrement Factor Of Multi-Layered Walls, Nadja Bishara, Andrea Gasparella
The Effect Of Ambient Moisture Conditions On Heat Flux Time Shift And Decrement Factor Of Multi-Layered Walls, Nadja Bishara, Andrea Gasparella
International Building Physics Conference 2018
Thermal properties of the opaque building envelope components are crucial for limiting the energy needs of a building. In particular, dynamic thermal properties of envelope components can significantly contribute to the minimization of heat transfer through the envelope and to the appropriate utilization of the internal and solar gains. This is particularly important in the cooling operation, especially in hot climates. Previous experimental and numerical studies on the determination of dynamic thermal parameters of opaque building components neglected the influence of moisture conditions prevailing within the ambient climate. This paper utilizes a calibrated and validated dynamic heat and mass transfer …
Hygrothermal Performance Assessment Of Wall Systems With Various Concrete And Insulation Configurations, Ali Vaseghi, Fitsum Tariku
Hygrothermal Performance Assessment Of Wall Systems With Various Concrete And Insulation Configurations, Ali Vaseghi, Fitsum Tariku
International Building Physics Conference 2018
The moisture performance of building envelope assemblies has always been a major concern of designers. Building envelope is constantly exposed to moisture loads such as exterior and interior humidity, rain, groundwater, snow and construction moisture. Therefore, it is critical to control the moisture migration mechanism within building envelope walls. Moisture accumulation occurs when the wetting potential of building envelope exceeds its drying potential due to applying inappropriate construction materials or configuration designs. Moisture accumulation in mid-rise and high-rise concrete buildings has negative impacts on microbial growth, occupants’ comfort, energy consumption, freeze thaw and compressive and tensile strength of concrete which …
Moisture Monitoring Of Wood-Frame Walls With And Without Exterior Insulation In A Midwestern U.S. Cold Climate, Samuel V. Glass, C. R. Boardman, Borjen Yeh, Kingston Chow
Moisture Monitoring Of Wood-Frame Walls With And Without Exterior Insulation In A Midwestern U.S. Cold Climate, Samuel V. Glass, C. R. Boardman, Borjen Yeh, Kingston Chow
International Building Physics Conference 2018
Continuous exterior insulation is becoming more common in North American above-grade walls in both retrofit applications and new construction, as a means to improve the thermal performance of wall assemblies. Although moisture performance of wood-frame wall assemblies has been studied extensively, the drying capability of wall assemblies with exterior insulation and an interior vapor retarder in cold climates is not well characterized. This study monitored the hygrothermal performance of wall assemblies with and without exterior insulation under high and low interior humidity conditions and with intentional wetting of the wood structural panel sheathing. Moisture content and temperature of standard 38 …